About 75% of your brain is made up of water. An adult's brain weighs about only 3 pounds! Brains are also the cotroll system of your body. And you can make a robot heart but not a fake brain! https://static.wixstatic.com/media/undefined

Bones are very important. Adults have 206 bones, while babies start with about 300. WHAT IS MY BIGGEST BONE? Your thighbone, or fumer. WHAT IS MY SMALLEST BONE? Your stapes, in your middle ear. https://static.wixstatic.com/media/undefined https://static.wixstatic.com/media/undefined up is a doc with x rays f bones... down=skeloton...

Their are many parts of the body... soooooooooooo many!!! Here are a few... 1, bones 2, *brain 3, *organs (soft parts like your heart, kidneys, etc...) https://static.wixstatic.com/media/undefined heart image

https://static.wixstatic.com/media/undefined When you spin, fluid moves around inside your ear. When you stop, the fluid keeps moving. Because the fluid is still moving, you get dizzy.

https://static.wixstatic.com/media/undefined No, not that heart! The one inside your body? https://static.wixstatic.com/media/undefined Yep, that one! Your heart is an organ. That means it's a soft part of your body. It pumps blood all day! It's also very important. Without it, you would die.

Hair is used like our coat, or hat. We have an adverage of 127,000 hairs, though about 50-75 fall off each day. https://static.wixstatic.com/media/undefined