Ear popping – Atmosphere – Weather science
The view from the top of the Gheralta massif in Ethiopia. You can feel for yourself that the atmosphere gets thinner as you go higher above the earth. If you [...]
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08, 2017
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08, 2017
Cumulus clouds – Weather – Science
These are cumulus clouds. They are puffy. What is a cumulus cloud? Cumulus clouds are clouds that are piled up on top of each other. "Cumulus" means a pile in Latin, as in [...]
20
08, 2017
What are clouds made of? Weather science
Clouds in the sky. What are clouds? Clouds are made of water What are clouds? Clouds are made of drops of water or ice. When the wind picks up water from the ocean or from [...]
19
08, 2017
Cirrus clouds – Weather science
Cirrus clouds in a blue sky What cirrus clouds look like Most of the time, you see cirrus clouds very high up in the sky, looking thin and wispy, like [...]
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08, 2017
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
What is Time? – Time and space in Physics
Time and space: a sundial from Ukraine (ca. 1300 BC) - one of the two oldest sundials in the world Are time and space the same thing? Nobody knows what [...]
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08, 2017
Venus – Planets – Astronomy – Space science
This is what the planet Venus looks like from space. Venus is the second planet away from our Sun - Mercury is closer to the Sun, and then the Earth is a little farther from the Sun. [...]
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08, 2017
Uranus – Planets – Astronomy – Space science
Uranus, the second to last planet out from the Sun Uranus is between Saturn and Neptune, so it's the next to the last planet away from our Sun. It takes Uranus 84 years to [...]
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08, 2017
Supernova – Space – Astronomy
Supernova from space (thanks to NASA and the Hubble Telescope) What is a supernova? Supernovas are exploding stars. Red giant stars explode when they have used up their hydrogen and helium fuel, and converted most of their atoms to iron [...]
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08, 2017
What’s the sun made of? – Astronomy – Science
The sun from space The Sun is a star, just like billions of other stars in the universe. Our Sun probably formed a little more than four and a half billion years [...]
