## Why is pi important?

Pi is a special number in the STEM world! You can find it in chemistry, physics and math. It’s the constant representing the ratio of a circle’s circumference to its diameter. It’s an irrational number, which is why its decimal representation never ends and never has a repeating pattern after the first seven digits.

Safety Smart Tip: Celebrate Pi Day (March 14) the right way this year by planning a Pi Day party in the classroom. You can even bring in pies for students to measure!

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• What is frostbite and how can you protect yourself?

Frostbite can happen to your skin when exposed to extreme cold for too long. When going outside in the winter, make sure you stay warm, dry and safe!

Safety Smart Tip: Learn the four basic steps to staying warm here.

• When do 50% of all home-heating fires occur?

50% of home-heating fires occur in December, January and February.

Safety Smart Tip: Keep items that can burn such as furniture, drapes and Christmas stockings at least 3 feet away from the heat. Check out more holiday safety tips here.

• How far away should your holiday tree be away from heat sources?

Position your tree at least three feet away from fireplaces, radiators and other heat sources.

Safety Smart Tip: Click here for more holiday safety tips.

• How much water does it take to brush your teeth?

If you leave the tap running you use 2 gallons of water per minute!

Safety Smart Tip: Click here to see what you can do to save water when brushing your teeth.

• Why should you follow traffic signs?

Traffic signs are very important to ensure the safety of drivers and pedestrians everywhere. They tell drivers how fast to drive, if a hazard is soon approaching and many other road warnings.

Safety Smart Tip: Watch Timon and Pumbaa’s Wild About Safety: On the Go- Traffic Signs to find out more.

• What has more germs: a toilet seat or a cell phone?

A cell phone has up to 10x more bacteria! Because you are constantly talking on your phone and using it to scroll through the internet or your messages, your phone is accumulating more and more bacteria each day. Germs are being shared when you let a friend use your phone too! We do not always think to clean our phones, but we should clean them regularly. It’s simple - use an antibacterial wipe and wipe it down!

Safety Smart Tip: Don’t use anything that has harsh cleaners like alcohol or ammonia because they can harm your phone and the electronics!

• How do you catch a cold?

Most types of the common cold are started by a virus called rhinovirus and you can get it from direct contact with another person who has a cold or by touching a surface or object that was already infected with cold germs (a keyboard, cell phone, or even a utensil) and then touching your mouth or eyes! The virus will attach itself to your throat or mouth and your body will send white blood cells in to fight the virus! Your body will continue to fight the cold, which leaves you feeling tired and achy!

Safety Smart Tip: Be cautious around people who have a cold and ALWAYS wash your hands with soap and warm water before you eat or touch your mouth/eyes. See how Timon and Pumbaa stay healthy here.

• What should you do if you can’t find a seat on the bus?

Hold on tightly to a safety rail!

Safety Smart Tip: Watch Timon and Pumbaa’s Wild About Safety: On the Go-Bus for more bus safety tips.

• What does a flame resistant label mean on a Halloween costume?

Although this label does not mean these items won’t catch fire, it does indicate the fabric will resist burning and should extinguish quickly once removed from the ignition source.

Safety Smart Tip: Decorate your costume with reflective tape that will glow in the dark and warn drivers.

• What does a fire need to burn?

A fire needs oxygen; fuel, anything that can burn like wood or gas in a grill; and heat.

Safety Smart Tip: If you hear your smoke alarm go off, get out and then call your emergency number!

• What is most likely to cause a home fire?

Fires due to electrical failure or malfunction are most common; they are involved in 49% of US home fires.

Safety Smart Tip: Don?t run cords under rugs! The insulation can get worn down, and they are more likely to cause a fire!

• True or False? Fire sprinklers are triggered by smoke.

False! Fire sprinkler systems are actually heat activated. The closest sprinkler to the fire will activate and spray water directly on the fire.

Safety Smart Tip: Visit http://www.homefiresprinkler.org/ to learn how you can reduce fire risk by 90%.

• How can you reduce plastic pollution in our oceans?

Whether we know it or not, plastics are unfortunately a part of our lives in many shapes and forms! But we can help prevent its devastating impacts by choosing reusable items such as grocery bags and recycling whenever possible. According to the Natural Resources Defense Council, each piece of plastic recycled is one less piece of waste that could end up in our oceans.

Safety Smart Tip 1: Watch and share featured documentary It’s Everybody’s Ocean with your friends and family. To learn more, please visit http://www.itseverybodysoceanmovie.com.

• How fast do our sneezes travel?

At least 100 mph! Sneezing is your body’s way of telling you that there is something in your nose that isn’t welcome! It can be dust, bacteria, or a virus. When you sneeze, your body is clearing your nose of all of that icky stuff!

Safety Smart Tip: Remember to always sneeze into your elbow, NOT your hands! If you wipe your nose after sneezing, make sure you wash your hands so you don’t spread germs!

• Why do we wear seatbelts?

We wear our seatbelts to protect ourselves in a crash or accident. When properly worn, a seatbelt snugly protects your hipbones and shoulder bones. Each strap works together so you do not slide out of the seatbelt. Modern seatbelts have a feature that locks the seatbelt when the car suddenly stops so you can stay protected by the seatbelt. Nowadays, seatbelts are so comfortable that you don’t even feel them! You can adjust them to your liking as well!

Safety Smart Tip: ALWAYS wear a seatbelt in a moving vehicle! Remember that the driver can be distracted by passengers moving around in the car!

• If your clothes catch on fire, what should you do?

Stop, Drop, and Roll! You should never run if your clothes catch on fire, as it will speed up the fire. After you STOP and DROP to the floor, remember to cover your face! Then, ROLL back and forth over and over until the flames are out. Find an adult and get medical help immediately!

Safety Smart Tip: To avoid your clothes catching on fire, stay away from fire (matches, lighters, candles, etc.). Be cautious of the clothing you wear when you are near a fire. Loose clothing catches on fire much easier than tighter clothing. Synthetic fibers (like nylon) are much more flammable than cotton or wool.

• Who are the only people you should give your passwords or safety codes to?

You should only give your passwords or safety codes to your parents or guardians. To make your password more secure, use special characters like: ! # \$ @ etc. Don’t use the same password for every site; that makes it easier for to access your password.

Safety Smart Tip: Creating a password for your phone is a very safe decision as it helps to protect your personal information!

• What should you do if you get an email or Instant Message from someone you don’t know?

You should ignore it, delete it/mark it as spam, and tell an adult. Only accept IMs or other messages from people you know. If you accept a message from someone you do not know, it could be a potential online predator or hacker who might try to illegally download software on your computer!

Safety Smart Tip: Sending an unwanted message to spam will “train” your email browser to automatically send messages from that sender and similar senders to spam.

• Why does spoiled milk smell?

Milk naturally contains a type of sugar called lactose and some germs called bacteria. If milk gets warm or sits in the refrigerator too long, the bacteria start to eat the lactose. That causes the lactose sugar to turn into lactose acid, which stinks!

Safety Smart Tip: Germs are all around, but they won’t crazily grow unless the conditions are just right! So keep your hot food hot, your cold food cold, and germs will have a less chance to grow!

• How do you test a GFCI outlet?

A GFCI is an automatic device that is installed in areas where water may come into contact with the outlet – like outdoor, kitchen, bathroom, and garage outlets. A GFCI can shut the power off to an appliance faster than the blink of an eye! GFCI’s have two buttons on them: one is labeled TEST and the other is labeled RESET. Plug in a light fixture and turn it on. Press the TEST button and the light fixture should immediately turn off. Press the RESET button and the light fixture will turn back on.

Safety Smart Tip: If the TEST button does not work the GFCI receptacle should be fixed immediately by a qualified electrician.

• What does “BPA” stand for?

BPA stands for “Bisphenol A” and it is a carbon based synthetic present in many plastics (like water bottles). It can be found on the metal lining of aluminum cans and plastic food storage containers.

Safety Smart Tip: If you are concerned about BPA, you can reduce your exposure! Eat less canned foods and more fresh food! Buy BP-free products – just look for the label “BPA-Free!”. Use glass, porcelain or stainless steel containers for hot foods and liquids!

• Why does a soda fizz and explode when we shake it?

The fizz and bubbles in soda are actually carbon dioxide gas (CO2) escaping from the can. Have you ever noticed how if you leave a soda uncovered, it will go “flat” (it will lose its fizziness)? That’s because all of the carbon dioxide escaped! So when we shake a can of soda, the carbon dioxide molecules get all mixed up in the soda, so the soda comes pouring out with all the bubbles – a very messy result!

Safety Smart Tip: If you have a bottle or can of soda that is shaken, tap the sides of the container a few times to break up the bubbles. Then, open the container SLOWLY to minimize the beverage spewing out!

• What does “SPF 30” mean?

SPF stands for Sun Protection Factor and the “30” means it will take your skin 30x longer to burn. So if your skin gets burned after 10 minutes in the sun without sunscreen, than it will take you 300 minutes to burn with SPF 30 sunscreen on. Sunscreen should be worn daily to avoid UVA and UVB rays being absorbed in to your skin. UVA (Ultraviolet A rays) and UVB (Ultraviolet B) can damage skin cells and cause skin cancer. A “broad spectrum” sunscreen will protect you from both UVA and UVB rays.

Safety Smart Tip: Choose a sunscreen that has an SPF of 30 or more and a sunscreen labeled as “broad spectrum” as they will give you the best protection under the sun! Remember to apply sunscreen 20 minutes before going out into the sun and reapply every two hours!

• Are perfumes toxic?

Modern perfumes are almost always made from synthetic chemicals that are most commonly synthesized from petroleum distillates. In the late 19th century, the first synthetic fragrance was created (from coal-tar) in a lab. Expensive raw natural materials that had been used to create luxury perfumes were now swapped in the lab with waste byproducts of the industrial revolution. Nowadays, 95 percent of the fragrance chemicals used in perfume are derived from petroleum, many of them quite toxic. A 1991 study by the Environmental Protection Agency (EPA) found that numerous potentially hazardous chemicals are commonly used in fragrance, including acetone, benzaldehyde, benzyl acetate, benzyl alcohol, camphor, ethanol, ethyl acetate, limonene, linalool and methylene chloride. According to Material Data Safety Sheets, these chemicals – when inhaled – can cause central nervous system disorders, dizziness, nausea, slurred speech, drowsiness, irritation to the mouth, throat, eyes, skin, and lungs, kidney damage, headache, respiratory failure, ataxia, and fatigue, among other things. The FDA reports that fragrances are responsible for 30 percent of all allergic reactions.

Safety Smart Tip: Limit your exposure to fragranced items (perfume, detergents, soaps, etc.) and look for products that are marked “fragrance free”!

• What is treading water?

It is when you keep your body afloat by running in place in the water. It takes less energy than swimming, but still keeps you afloat!

UL TIP: If you are getting carried in a current, tread water and wave for a lifeguard instead of trying to swim against the current.

• What are the odds of being struck by lightning?

The odds of being struck by lightning in your lifetime is 1 in 3,000.

UL TIP: When you hear thunder, go inside immediately, and stay inside for at least 30 minutes after the last sound of thunder.

• Why do we float?

We can float because we are less dense than water! Density is how closely molecules are packed into a particular space. So, if there are two objects of the same size, the denser object will weigh more. Muscle is denser than fat, so fatter people can float better than people with a lot of muscle! Floating is not based on your weight or size.

• What are fossil fuels?

“Fossil” means buried. Fossil fuels are made from the remains of ancient plants and animals that are buried deep in the Earth for millions of years. Heat and pressure turns them into fossil fuels such as coal, oil, gasoline, and natural gas. Fossil fuels are non-renewable forms of energy: they aren’t being renewed as quickly as we are using them up!

UL TIP: Make sure to turn your lights off to conserve natural resources!

• What is a GFCI?

A GFCI (ground fault circuit interrupter) is a type of outlet that shuts off the electric current when it detects that the current is not flowing the way that it should, for example if it is flowing through water or through a person.

UL TIP: If you see a frayed electric cord, tell you parents immediately and do NOT touch it!

• Why is smoke so dangerous?

Smoke gives off carbon monoxide, which can lead to poisoning. Smoke is also made of other chemicals than can cause damage to your lungs and body.

UL TIP: If you are unsure of whether a fire is on the other side of your door, check the door with the back of your hand!

• What is the shape of a yield sign?

An upside down triangle! It can also be a flashing yellow light. Yield means to slow down, defer to oncoming traffic and stop if necessary.

UL TIP: Don’t cross the street in between parked cars! Cars coming down the road won’t be able to see you coming!

• Why can you get more sunburnt when you’re in the water than when you’re on land?

Water reflects the sun’s harmful rays, so the parts of you that are above water will burn faster. The rays will have been reflected up on your body.

UL TIP: It can be slippery around the pool, so be sure not to run!

• What does “biodegradable” mean?

When a product is biodegradable, it can easily dissolve in the environment over time without harming the environment. Fruit and vegetable peels are examples of biodegradable objects.

UL TIP: Don’t litter, and keep trash out of storm drains to help limit pollution!

• What is a computer virus?

A virus is a piece of software that attaches itself to real programs. Every time the program runs, the virus runs too, and reproduces. Viruses are bad for your computer, as they can trick you into buying fake things, steal your personal information to get your money.

UL TIP: Don’t go to any website without your parents’ permission!

• What is static electricity?

Static electricity is the buildup of charge on a surface. It is called static because the charge remains in one area rather than moving. This happens when two surfaces touch each other and the electrons move from one object to another (electrons carry charge). For example, when you rub a balloon against your hair, charge builds up on your hair. Charges that are the same repel each other (positive repels positive and negative repels negative), so each hair repels the others, so your hair stands up!

UL TIP: Never put any electrical appliance near water!

• Why can’t you put metal in the microwave?

Microwaves give off radiation. Food absorbs this radiation, and its molecules move back and forth, causing the food to heat up. Metal, however, deflects the radiation waves away and sends the waves jumping all over the microwave and damaging it.

UL TIP: Don’t cook without adult supervision!

• Why is your body thrown forward if a car abruptly stops?

This is Newton’s First Law of Motion – the Law of Inertia. It says that an object at rest will stay at rest, and an object in motion stays in motion unless something pushes or pulls on it. Inertia is every object’s resistance to changing its speed and direction of travel. So, if your car is going 50 mph, then your body is also going 50 mph when you are inside that car. When the car is stopped by the brakes, your body wants to keep moving at that 50 mph. It is your seatbelt that stops your body from continuing to move forward.

UL TIP: Always wear a seatbelt when you’re in the car, and make sure everyone else in the car is wearing one too!

• What is a rip current?

A current is the flow or motion of water. A rip current moves along the surface of the water, pulling you straight out into the ocean, but not underneath the water’s surface.

UL TIP: Always make sure there is a lifeguard on duty before you go in the water!

• What are some of the germiest things you come in contact with every day?

Your keyboard, your phone, money, light switches, and shopping carts!

UL TIP: Don’t share things covered with your germs with others! Sharing your drink or chapstick is not safety smart!

• What is the difference between a fruit and a vegetable?

A fruit has seeds, and a vegetable does not! Fruits contain the part of the plant that contribute to reproduction, while vegetables are just an edible portion of the plant.

UL TIP: Floss and brush your teeth after every meal!

• How much water is in our body?

Our bodies are about 60 percent water, and our brains are 70 percent water!

UL TIP: Make sure you bring a water bottle when you are being active outside so that you can stay hydrated!

• What are pesticides?

Pesticides are any substance used to kill, repel, or control certain forms of plant or animal life that are considered to be pests. They include herbicides, which destroys weeds and unwanted vegetation, fungicides to prevent the mold and mildew growth, disinfectants to prevent the spread of bacteria, and rodenticides to control mice and rats.

UL TIP: Do not eat or drink something unless an adult tells you it’s okay – and check the label! Chemicals can look similar to things you may eat or drink.

• How do nosebleeds happen?

Most happen when the little blood vessels that line the inside of your nose break and bleed.

UL TIP: If you get a nose bleed, you should lean your head forward, pinch your nostrils using your thumb and index finger, and breathe through your mouth for 5 to 10 minutes.

• How do airbags work?

Airbags are made of a nylon bag which is folded into the steering wheel or dashboard. There is also a sensor. The sensor tells the device to inflate when there has been a crash. The airbag inflates by reacting chemicals to produce nitrogen gas. The hot blasts of the nitrogen gas inflate the airbag.

UL Tip: Remember to always wear your seat belt when you?re in the car! It will keep you safe in the case of an accident.

• What are the benefits of an electric car?

Electric cars use energy stored in rechargeable batteries. Electric vehicles are energy efficient (they convert 59-62% of the electrical energy from the grid to power at the wheels, rather than 17-21% of the energy converted by gasoline vehicles. They are environmentally friendly; they do not emit tailpipe pollutants. They reduce energy dependence on oil.

UL Tip: When unplugging something, always grab it by the plug, not by the cord!

• What's the safest way to get to school?

School buses are, statistically, the safest form of transportation for getting children to and from school. Buses carry more than half of America?s school children according to mplsd.org. Buses have safety features such as: color, size, reinforced sides, flashing red lights, cross view mirrors, crossing sign arms, and stop sign arms. Lastly, school bus drivers are highly trained professionals.

UL Tip: Never walk behind the bus to cross a street ? always walk in front. Before you cross make eye contact with the bus and wait for his signal!

• How do I know if my backpack is too heavy for me?

Backpacks should be no more than 15% of a child?s weight. So, multiply your weight by .10 or .15. If your backpack weighs more than that, take some books out!

UL Tip: Keeping up with your school work is important, but so is being healthy and fit! Get out there and play ? you should get an hour of physical activity every day!

• How do I use a fire extinguisher?

P.A.S.S. ? Pull, Aim, Squeeze & Sweep. Pull the pin. Aim low ? point the extinguisher at the base of the fire. Squeeze the lever slowly and evenly. Sweep the nozzle from side to side.

UL Tip: Make sure there are smoke alarms on every floor and outside of sleeping areas!

• How hot is fire?

A flame is typically around 1800 degrees Fahrenheit/1000 degrees Celsius.

UL Tip: There are three things that a fire needs to burn: heat, oxygen, and fuel. If you take any one of those away, the fire will stop! Always know where a fire extinguisher is nearby in case of emergency.

• What is in pool water?

Chemicals, such as chlorine, are in pool water to help kill germs in the water.

UL Tip: Never go to the bathroom in the pool! Always get out and use a restroom.

• What are the different types of lifejackets (personal flotation devices) and what's the difference between them?

Type I: Off-shore life jackets: best for all waters, open ocean, rough seas or remote water.

Type II: Near-shore buoyant vests: for general boating activities, good for calm, inland water

Type III: Flotation aids: for general boating of specialized activities (water skiing, fishing, canoeing), good for calm, inland waters

Type V: Special use devices: only for special uses or conditions, see the label for limitations.

UL Tip: 9 out of 10 drownings occur in inland waters, not way out at sea according to ul.com! So make sure that everyone is wearing his or her PFD before leaving the dock.

• What is the difference between UVA and UVB rays?

UVA rays are long wave, and are the rays that age us and cause long-term damage of the skin. These rays enter the skin?s deepest layer, and suppress the immune system. UVB rays burn the top layer of your skin; this is what causes sunburn.

UL Tip: Apply sunscreen 15-30 minutes before going into the sun, and reapply often!

• How much water should I drink per day?

Kids should get from 1.5 to 2 liters of water every day, and even more if they are exercising.

UL Tip: Drinking water is essential for good health; so is eating fruits and vegetables!

• What is the difference between communicable and non-communicable diseases?

Communicable diseases are contagious, while non-communicable are not contagious. Examples of communicable diseases are the common cold and the flu. Asthma, diabetes and tooth decay are non-communicable diseases.

UL Tip: Be sure not to touch other people or things if there are germs on your hands! Wash them first!

• What are endorphins?

Endorphins are the chemicals that your body produces that help you feel more peaceful and happy. Endorphins are released when you exercise.

UL Tip: You should get about one hour of exercise every day!

• What are the most commonly counterfeited foods?

Fish, olive oil, honey and saffron are some of the most commonly counterfeited foods.

UL Tip: Look out for indicators of a counterfeited product: the price, packaging and place you are buying it from! If it seems to highly discounted, the packaging is low quality, or you would not expect the item to be sold in that particular place, the item may be counterfeited!

• Why is renewable energy important?

Renewable energy is energy that comes from infinite sources: solar energy, wind energy, hydroelectric energy (for example, dams), geothermal energy (energy from the heat deep in the Earth). The sources of energy that the world relies on now, such as coal, oil and natural gas, will eventually run out, unlike renewable energy.

UL Tip: Remember to reduce, reuse and recycle!

• How much water is wasted in America?

According to the EPA, average household leaks make up more than 10,000 gallons of wasted water every year. That is enough water to wash 270 loads of laundry! When taking a shower you typically use 10 to 25 gallons of water, and a bath can use up to 70 gallons!

UL Tip: Reduce your use! Take shorter showers and use less water!

• What happens to old electronics?

Unfortunately, most of them end up as waste. If it goes to a landfill, e-waste releases toxic chemicals into the environment. Much is exported to other countries where children sort the trash, leading to a number of health problems.

UL Tip: Look up a local e-waste recycling program near you and donate your old electronics!

• What light bulb types use the least energy?

Light emitting diode (LED) lights are the most energy-efficient options for light bulbs. They use 20-25% of the energy as traditional incandescent bulbs and last up to 25 times longer. LED use 25-30% of the energy as halogen incandescent light bulbs and last 8 to 25 times longer.

UL Tip: Recycle your LED light bulbs at your local waste management facility!

• How can electricity harm us?

The wires used in our homes are made of metals, which conduct electric current. Usually the current stays in the wire and is covered by an insulator, but when it flows out of the wire, such as when bare wires are exposed, you can get shocked.

UL Tip: Never run a cord under a rug! It can get frayed and cause a fire!

• What are VOCs and why are they harmful?

VOCs, or volatile organic compounds, are indoor air pollutants that come from construction materials, furnishings, and finishes. They produce irritations and odors that can lead to headaches, eye tearing, nasal burning, and children exposed to them are four times more likely to develop asthma.

UL Tip: Make sure your parents are buying low-VOC paints when they paint your home, keeping your home well ventilated, and installing low-emitting VOC products to help improve indoor air quality!

• What is charcoal?

Charcoal is used as fuel for some grills. Charcoal is wood that has been heated in the absence of oxygen to remove nearly all of the volatiles gases and leave behind the carbon. Charcoal is a good fuel because it gets very hot without giving off smoke!

UL Tip: Make sure your grill is kept at least ten feet away from your home or any building!

• How much information is on the internet?

It is estimated that there are about 637 million websites and 2.4 billion internet users.

UL Tip: Create a strong and secure password, and don?t share it with anyone!

• What information should not be shared on the Internet?

Your first and last name, the school you go to, your personal address, your email address, your phone number, your current location, any future locations, or any other personal information! Also, never post anything that embarrasses or hurts someone else?s feelings.

UL Tip: Remember that once something is online, it stays there forever because cyberspace can store an endless amount of information!

• How common is cyberbullying?

According to nobullying.com, reports say that 1 in 3 young people have been threatened in some way online.

UL Tip: Never post any hurtful pictures, videos or comments online!

• How do batteries work?

A battery has three primary parts: a negative end (anode), a positive end (cathode), and an electrolyte. The ends contain small particles which are either positively or negatively charged. Electrons flow from the negative side to the positive side via an electrolyte. The electrolyte is a chemical through which electricity can easily flow. This flow of electrons creates energy!

UL Tip: Always properly dispose of batteries after using them! Simply put the used batteries in a re-sealable plastic bag and tell an adult that they need to be thrown away or taken to an authorized waste drop-off center.

• How many hours of sleep do you need a night?

According to the Mayo Clinic (a trustworthy medical organization), individuals under the age of 18 should get between 9-11 hours of sleep a night.

UL Tip: Get your sleep! Always make sure you are rested, especially if you have school or other commitments. A lack of sleep can seriously impact your body and mind!

• What are cookies (on the computer)?

Cookies are small pieces of digital information that are stored on your computer while surfing the web. When you leave the site and come back later, the cookies tell the website that you've been there before and what you did. Cookies can store passwords and your personal information!

UL Tip: Always ask your parents before going on any new site and especially before giving out any personal information on the internet!

• Why does metal get hotter faster than water?

Metals have a lower heat capacity than water. That means, water can absorb more energy (for example temperature) and not change its heat levels. It takes water more than 10 times the amount of energy than a penny to change a single degree!

UL Tip: Always be careful with metals that have been exposed to hot temperatures! Especially car door handles, stoves, and oven doors.

• What are germs?

Germs are microorganisms that can cause disease in the animal, plant, or other organism they live in. There are lots of different types of germs, including viruses, bacterium, and fungi.

UL Tip: Germs can be passed by skin contact and through the air. So it's important to always wash your hands and cover your nose or mouth when coughing or sneezing

• Why do you get low to the ground during a fire?

You get as low as possible because hot air rises, and so the smoke will rise to the top of the room. By staying low, you stay in the coldest location of the room.

UL Tip: Have your family create a fire safety plan to always be prepared!

• How hot is the sun?

The sun's core is over 27 million degrees Fahrenheit and 15 million degrees Celsius!

UL Safety Smart Tip: Don't forget your sunscreen!

• Why can't you mix electricity with water?

You cannot mix electricity with water because you risk getting electrocuted. Here's the science: It's the tiny, crystal like objects, called minerals-in the water- that conduct electricity. That means if touched with electricity, they can spread the shock!

UL tip: While swimming, if you see or hear thunder or lightning, get out of the water and seek shelter immediately.

• Why do cats always land on their feet?

Unlike you and me, cats don't have a collarbone and have extremely flexible bones in their backs. That's why, if a cat were to fall from a bookshelf or a couch, their bodies would allow them to twist their way upright!

UL Tip: Remember to always wash your hands after playing with pets.

• How many stars are there in the Milky Way?

The Milky Way, the galaxy that Earth and our solar system are in, has over 400 billion stars! And in the observable universe, there are over 1,000,000,000,000,000,000,000,000 stars!

UL Tip: Go outside at night, and look for the constellations!

• How old is the earth?

The age of the earth has been determined using the radioactivity of the earth's rock formations! Scientists have concluded that the earth was formed about 4.5 billion years ago!

• How did the Moon form?

The Moon was formed by the collection of small rocks and debris that came together into a bigger and bigger object. Many scientists believe that the rocks most likely came from a crash between an object and Earth, billions of years ago. They believe that the Earth became much smaller as a result, and that's what formed the Moon!

• Is CO/ALR (copper/aluminum wire) safe for use with switches and receptacles?

CO/ALR stands for copper/aluminum revised. CO/ALR is not a type of wire, but a terminal marking found on certain receptacles and switches since the early 1970s to designate that they can be used with aluminum wiring. Using aluminum wiring on a switch or receptacle not marked CO/ALR is not considered safe.