What are Atoms? The Smallest Parts of Elements And You!

well hello there kids I'm Professor Tidlybit and here's today's question. What are too small to be seen, but make up everything including new atoms. ATOMS make up everything! They're the building blocks for rocks plants and animals, to cars, computers, and even the whole Earth itself is made entirely of atoms. Atoms are really small too. How small are they? Well imagine you're at the beach, like this one! Now focus closely on just one grain of sand. As it turns out there are more atoms inside that tiny grain of sand, then there are probably are grains of sand on the entire beach! Now that's a lot of very small atoms. Did you know that 94 kinds of atoms make up everything found in nature, and scientists have experimentally created 24 more, which brings the total number up to 118 kinds of atoms. Scientists call each kind of atom an element and they put it all on this chart called the Periodic Table of Elements. Each element here is special because it looks or acts differently from the other elements. Surprisingly almost 99% of your body is made up of just six of these elements. You are 65% oxygen the stuff we breathe, 18% carbon the stuff that makes charcoal and diamonds, 10% hydrogen, the stuff that makes the Sun shine. 3% nitrogen, which fills most of the Earth's atmosphere 1.5 % calcium, which is good for your bones, and 1% phosphorus, a strange glowing element Now here's the weird part within one year almost all of the atoms inside of you will be completely replaced with new ones. How? Well we bring atoms into our bodies when we drink, eat, and inhale, and we lose atoms when we sweat, exhale, or go to the bathroom. This means you don't just come from the place you were born at, because your atoms have come from everywhere on the planet. Fish from the sea, grain from farms, fruits and vegetables from other countries, and water from everywhere. You are an ever-changing body of atoms, which should make you think, because if you aren't made from the same atoms you were last year, then what makes you really you? Now that's something for you to think about until next time.