What is mercury? Atoms, elements, chemistry
Diagram of a mercury atom. Thanks to Open Door for this image Along with gold, lead, and uranium, mercury is one of the heavier kinds of atoms. Every atom of [...]
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06, 2017
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06, 2017
Lead atoms – Elements and chemistry
A lump of lead, containing billions of lead atoms Where does lead come from? As with all of the other heavier elements, all of the lead in the universe came [...]
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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 [...]
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06, 2017
What is an ionic bond? Simple science – Chemistry
Ionic bond examples: Diagram of a molecule of salt, which uses an ionic bond What is an ionic bond? When atoms get close together, sometimes they form ionic bonds that [...]
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06, 2017
What are atoms? Simple science – Chemistry
Lithium, cobalt, and oxygen atoms (as in a lithium-ion battery), seen under an electron microscope from Berkeley Labs What is an atom? Atoms are collections of tiny bits of matter, [...]
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06, 2017
Ice, water, and simple chemistry
Ice chemistry: Perito Moreno glacier, Argentina (thanks to Argentina's Travel Guide) How water freezes into ice When water gets colder than 32 degrees Fahrenheit or zero degrees Celsius, it freezes [...]
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06, 2017
What is hydrogen? Atoms and Chemistry
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 [...]
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06, 2017
What are hydrocarbons? Simple chemistry
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 [...]
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06, 2017
What is helium? Atoms, elements, and chemistry
Diagram of a helium atom Helium is a very simple atom. Helium is a simple atom. The nucleus of a helium atom has two protons and two neutrons. Around the nucleus, [...]
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06, 2017
What is heat? Simple science – Chemistry
What is heat? A big campfire throws some serious heat Definition of heat When molecules of any kind of atoms get more energy in them than they had before, they [...]
