hydrocarbons

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19 08, 2017

What is a nebula? Space and astronomy

By |2018-05-31T11:49:30-07:00August 19th, 2017|Physics|0 Comments

The Eagle Nebula A nebula is a bunch of atoms and molecules floating in outer space, like a cloud of dust. More than one nebula are called nebulae, because -ae is the plural ending in Latin, just as -s is the plural ending in English. Nebula is the Latin word for a cloud. The earliest nebulae formed just [...]

3 06, 2017

What is a combustion reaction? Chemistry

By |2019-04-18T05:22:11-07:00June 3rd, 2017|Chemistry|0 Comments

A candle flame What's a combustion reaction? When two molecules bump into each other under the right circumstances, they may exchange electrons in ways that change both molecules into new kinds of molecules. What's a molecule? More about electrons All our chemistry articles Releasing heat or light or electricity While they're doing that - [...]

3 06, 2017

Digestion – Oxidation reaction

By |2019-05-08T05:40:43-07:00June 3rd, 2017|Biology, Chemistry|2 Comments

Kids eating food (thanks to USDA) - get ready to digest food! How do you digest food? When animals, including people like you, digest their food, they use an oxidation reaction to break down big hydrocarbon molecules like sugar into different molecules. Cell digestion Digestive system What is an oxidation reaction? All our chemistry articles [...]

2 06, 2017

What is plastic? Organic chemistry

By |2018-04-08T11:21:49-07:00June 2nd, 2017|History|0 Comments

Plastic water bottles There are thousands of different kinds of plastic, from shopping bags to Fisher-Price toys to photographic film, CD's, and plumbing pipes. Some plastics, like chewing gum or rubber, grow as part of plants, but people make most of the different kinds of plastic. We call them "plastics" because they are [...]

2 06, 2017

What is nitrogen? Atoms, Elements, Chemistry

By |2018-04-24T14:46:22-07:00June 2nd, 2017|Chemistry|0 Comments

Diagram of a nitrogen atom Inside a red giant star, the star smashes lighter atoms together. Smashing atoms gets the star energy to burn, and also leaves extra heavier atoms. Nitrogen is one of these heavier atoms, left over when a star smashes together carbon atoms. Nitrogen is not very heavy, though, and a [...]

2 06, 2017

What is hydrogen? Atoms and Chemistry

By |2019-09-05T20:42:16-07:00June 2nd, 2017|Chemistry|0 Comments

A diagram of a hydrogen atom Hydrogen is the simplest kind of atom Hydrogen is the simplest kind of atom, and in the very earliest days after the Big Bang hydrogen was the only kind of atom in the new Universe. What are atoms? What's the Big Bang? All our chemistry articles A [...]

2 06, 2017

What are hydrocarbons? Simple chemistry

By |2019-09-05T17:44:58-07:00June 2nd, 2017|Chemistry|0 Comments

A model of a methane molecule - the simplest of hydrocarbons A kind of molecule Hydrocarbons are molecules. They are made out of hydrogen atoms and carbon atoms. Methane is the simplest hydrocarbon molecule. It's just one carbon atom with four hydrogen atoms stuck to it. What is hydrogen? What is carbon? More [...]

1 06, 2017

Carbon, candles, and cars – Chemistry project

By |2019-02-28T08:58:05-07:00June 1st, 2017|Chemistry|0 Comments

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 candle. Most candles are either made from paraffin wax or from beeswax. It doesn't matter which you have for this experiment. What is [...]

1 06, 2017

What is carbon dioxide? Molecules and Chemistry

By |2019-02-28T09:28:34-07:00June 1st, 2017|Chemistry|0 Comments

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 molecules in the universe. It has only three atoms - one carbon and two oxygen atoms. More about carbon What is a molecule? All [...]