Did you know that out of the 92 elements which exist naturally, the gross majority of our bodies are made up of only four? Hydrogen, Carbon, Nitrogen and Oxygen.
Welcome to week 2 of our cell unit study. We are following the book The Way We Work by David Macaulay to learn about cells. Since cells are constructed from atoms that's where our study begins. It takes around 100 trillion atoms to make a cell and around 100 trillion cells to make a human....... Atoms are very small!
The sketch of hydrogen on the right, shows the nucleus with one electron. We used red gumdrops to represent hydrogen's nucleus, a blue toothpick to represent the first ring of electrons, and a marshmallow for the electron.
Carbon contains six electrons. Two fill the first ring connected to the orange carbon nucleus with blue toothpicks, and the remaining four in the second ring are connected to the nucleus with orange toothpicks.
The same pattern was followed with Nitrogen and Oxygen.
Here are the raw materials.
Red gumdrops = Hydrogen nucleus
Orange gumdrops = Carbon nucleus
Purple gumdrops = Oxygen nucleus
Green gumdrops = Nitrogen nucleus
Marshmallows = Electrons
Blue toothpicks = First ring of electrons
Orange toothpicks = Second ring of electrons
Here you can find our other cell and science activities.
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