Chlorine project – Bread and bleach – Chemistry
Swimming pool To find out what chlorine smells like, just go to the swimming pool. The funny smell of swimming pools is the smell of chlorine. (Actually, the chlorine doesn't [...]
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06, 2017
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06, 2017
Carbon dioxide project with Dry Ice – Chemistry
Frozen carbon dioxide (dry ice) - for your carbon dioxide project How can you see carbon dioxide? Normally you can't see carbon dioxide because it is an invisible gas. But [...]
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06, 2017
Carbon, candles, and cars – Chemistry project
Candles burn carbon A project with a candle and a spoon You can see the relationship between carbon, oxygen, and hydrogen easily at home or at school. You'll need a [...]
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06, 2017
Calcium project – Chalk and lemon juice – Chemistry
Need chalk? Buy chalk Chalk has calcium in it Take a piece of regular white chalk, like for writing on a blackboard. Make sure the chalk is calcium carbonate like [...]
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06, 2017
Aluminum project – Soda cans and soup cans – Chemistry
A simple project with aluminum You can see for yourself how aluminum is different from steel by comparing an empty aluminum can (a soda can) to an empty steel can (most canned [...]
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06, 2017
What are covalent bonds? – Atoms and Chemistry
Covalent bonds: two hydrogen molecules bonding to an oxygen molecule Covalent bonds stick atoms together When two atoms come near each other, sometimes they stick together to make a molecule. One [...]
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06, 2017
Copper – Atoms, Elements, and Chemistry
Diagram of a copper atom What is copper? Copper is a kind of atom that has only one electron in the outermost ring. What's an electron? What are atoms? A [...]
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06, 2017
What is chlorine? – Atoms – Chemistry
Diagram of a chlorine atom What is a chlorine atom? Chlorine is an atom that has 17 protons and usually either 18 or 20 neutrons in its nucleus and 17 electrons [...]
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06, 2017
What is carbon dioxide? Molecules and Chemistry
Tobacco plants growing put carbon dioxide molecules back into the air - like all plants What is carbon dioxide made of? Carbon dioxide is one of the simplest and commonest [...]
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06, 2017
What is carbon? Atoms – Chemistry
Diagram of a carbon atom Where does carbon come from? When a star has changed all of the hydrogen atoms into helium, it begins to convert the helium atoms into [...]
