How to Make Learning About the Human Body Fun for Kids May 03, 2018 12:04
The human body is a marvelous achievement of nature. This secret world that makes us tick, how muscles work, how food is digested and much more.
Whether your kids are learning about history, math or science, making things fun is the best way to keep them interested. When it comes to the human body, children love things that are gross. Add some humor to the equation, and you have a recipe for a motivated learner!
Here are some cool facts from my new book, The Fantastic Body, that you can share with your kids.
Your skin has three layers. The outside layer is called the epidermis, which is actually made up of about 20 layers of tightly packed cells. The body sheds these cells constantly, even though you can't see it happening. More than half of the dust in your home is composed of dead skin cells that have fallen off your body. Keep that in mind the next time you see a dust bunny!
Yikes, My Ears Popped
Have you ever noticed that your ears hurt if you drive down a big hill? This happens because air pressure increases as the car reaches the bottom. The change in pressure doesn't bother your eyes, nose or feet, but it's really annoying to your eardrum. As the outside air pressure increases, it pushes against the eardrum, causing it to move inward. The same thing happens in reverse if you drive up a big hill, but in this case the eardrum hurts because it's being pushed outward.
Swallowing relieves the pain because you have a "pop-off valve" called the Eustachian tube. When you swallow, the tube briefly opens. This equalizes (balances) the pressure on both sides of the eardrum. You may feel a "pop" when it happens.
Your body is loaded with glands. Some produce tears. Some produce sweat. Some produce oil. Your mouth is home to six large glands and hundreds of tiny glands that make saliva.
Although you may think the purpose of saliva is to have spitting contests with your friends, it actually has more important things to do. It keeps your oral tissues moist, mixes with food to make it taste better and easier to swallow, and contains germ-fighting chemicals—antibodies—to help prevent tooth decay and other infections in your mouth.