Eclipse of the sun – Astronomy
Eclipse of the sun, showing the corona Why do eclipses happen? An eclipse of the sun happens whenever the moon gets between the Earth and the sun, so that the moon blocks your view of [...]
18
08, 2017
18
08, 2017
Eclipse of the Moon – Space science
An eclipse of the moon. You can see the curved shadow of the Earth. What is an eclipse of the moon? An eclipse of the moon happens when the Earth gets between [...]
18
08, 2017
Earthquakes and algae – the planet Earth
Molten lava: the beginnings of planet Earth What is the Earth made of? Most of the molecules that smashed together to make the Earth were iron. The smashing together released a [...]
18
08, 2017
How old is the Earth? – Astronomy
Earth from space: How old is the Earth? When did the Earth form? Like Mercury and Venus and the other planets that go around the Sun, the Earth probably formed a little more than four and a [...]
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08, 2017
Moon project – Astronomy activity
Crescent moon (thanks to Wade Clark at Skychasers). Can you see the rest of the moon, in shadow? Go outside and look at the moon at night. How much of the moon [...]
17
08, 2017
Eclipse of the moon project – Astronomy
Looking at an eclipse of the moon A project with lunar eclipses The best way to learn about eclipses of the moon is to go outside and look at one. Plus, it's [...]
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08, 2017
Earth, Sun, Moon dance – Astronomy project
An eclipse of the moon. You can see the curved shadow of the Earth. Watch an eclipse as an astronomy project! Dance the Earth and the Sun... To get a [...]
16
08, 2017
What is centrifugal force? Physics definitions
Kids playing tetherball using centrifugal force Who first explained centrifugal force? When something is going straight, it always keeps going straight unless something else stops it or turns it. (The [...]
16
08, 2017
What is a light-year? Physics definitions
Light takes years to reach us from these stars far away in space. What is a light-year? A light-year is the distance that light can travel in one year - [...]
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08, 2017
Science in Early Modern Europe
Early modern science: Tycho Brahe (He looks funny because his nose got cut off in a duel and he wore a false one made of brass.) New observatories in Europe [...]
