/Tag: ice

What is water made of? Molecules and chemistry

By |2017-06-02T18:02:44-07:00June 2nd, 2017|Chemistry|

A big ocean wave The first molecules of water formed out in space, about 14 billion years ago, as part of the nebula left over after an early star exploded in a supernova. There were a lot of hydrogen and oxygen atoms floating around in these nebulae, and when they stuck together that [...]

Ice, water, and simple chemistry

By |2018-04-16T23:46:09-07:00June 2nd, 2017|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 into ice. As the water gets colder, the molecules of water lose their energy and move more slowly - that's what it means [...]

Ice and food coloring – Chemistry Projects

By |2018-04-16T17:38:04-07:00June 1st, 2017|Chemistry|

A glass of water To see that water molecules move around even when the water seems to be very still, take a full glass of water, cover it with a piece of plastic wrap, and poke a small hole in the plastic wrap. Wait for two days without disturbing the glass, until you [...]