Why is the sky blue? Weather science
Blue sky with cirrus clouds This is an easy question to ask but the answer is pretty hard. The light that comes from the Sun to Earth looks white, but really it is made [...]
20
08, 2017
20
08, 2017
What causes wind (Hot air rises) – Wind and weather Science
Hot air balloon - hot air rising is what causes wind Hot air is lighter than cold air When something is hot, its molecules are farther apart than when it is cold. When air [...]
20
08, 2017
Why is the sky blue? A science project
A cloudy glass of water You can see for yourself that blue light scatters more than red light. This is the same way that John Tyndall showed why the sky was [...]
20
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
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 [...]
18
08, 2017
Rainbows and water – a sun project
Sunshine through the clouds and Earth's atmosphere You can see that the sunlight that reaches the Earth travels at different wavelengths. On a sunny day, put a full glass of water (a real glass glass) in [...]
17
08, 2017
Radioactivity and sunburns – Physics
Radiation from the sun caused this sunburned back The most common kind of radiation is sunlight, and the most common cause of injury from radiation is a sunburn. Just like radioactivity from a [...]
16
08, 2017
What is light made of? Why is the sky blue?
Rainbow over Amazon river - What is light made of? What is light made of? Light is made of billions of tiny particles called photons. These photons travel from one place [...]
29
05, 2017
What is photosynthesis? Plant Biology
Chloroplasts (seen through a microscope) Photosynthesis is the way some cells on Earth pull in light from the sun and use it to make energy to repair and reproduce themselves. [...]
