What’s the atmosphere? Weather science
Earth's atmosphere: Did the Earth look like this right after it cooled down? What is the atmosphere? The atmosphere is the air that is wrapped all around a planet. Read more [...]
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08, 2017
3
06, 2017
What is rust? Oxidation reactions and chemistry
What is rust? A rusty fence railing Oxidation reactions Fire isn't the only kind of combustion reaction. Some kinds of metal, if you leave them in contact with oxygen, will [...]
2
06, 2017
What is oxygen? Atoms, elements, chemistry
Diagram of an oxygen atom When a star has changed all of its hydrogen atoms into helium, it turns into a red giant and moves on to convert the helium atoms into [...]
2
06, 2017
What is iron? Atoms, elements, chemistry
Diagram of an iron atom When a red giant star finishes changing all of its helium into carbon and oxygen, it then starts to turn the carbon and oxygen atoms into iron atoms. Iron [...]
1
06, 2017
Tin cans – Chemistry projects – Science
Steel soup can To see how tin keeps a steel can from rusting, get an empty can. A can from canned green beans or canned peaches or something like that would [...]
1
06, 2017
Rust and iron – Chemistry project
A rusty sign You can easily see that iron rusts and turns red when oxygen touches it. Go look around your backyard or your neighborhood and try to find ten things [...]
