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Stratus clouds – A blanket of cloud – Weather science

By | 2017-08-20T18:32:08+00:00 August 20th, 2017|Physics|

Stratus clouds (thanks to NASA) If you see stratus clouds, that's the time to get inside and stay there. Stratus clouds mean rain if it is warm and snow if it is cold. They look like a huge gray blanket that hangs low in the sky. Sometimes stratus clouds are on the ground or very near the ground, [...]

What makes thunder and lightning? – Weather science

By | 2017-08-20T17:49:37+00:00 August 20th, 2017|Physics|

A bolt of lightning in the sky Hot air and cold air are constantly moving around the Earth, as the hot air rises and the cold air sinks - that's what makes wind. Sometimes as this airmoves around, it gets more exciting than just wind, though. A thunderstorm begins when the wind picks up a lot of water from the [...]

Steam clouds projects – Weather science

By | 2017-08-20T13:45:29+00:00 August 20th, 2017|Physics|

See the steam coming out of this kettle? You can make your own clouds and see how they work. Just take a tea kettle and fill it full of water and put it on the stove to boil (make sure this is okay with your folks). When the steam comes out, it makes a white cloud - that's the [...]

Cumulus clouds – Weather – Science

By | 2017-08-20T13:35:20+00:00 August 20th, 2017|History|

These are cumulus clouds. They are puffy. Cumulus clouds are clouds that are piled up on top of each other. "Cumulus" means a pile in Latin, as in our word "accumulate" meaning to pile up. They are puffy clouds. Sometimes cumulus clouds are white and there are only a few of them in the sky; other [...]

What are clouds made of? Weather science

By | 2017-08-20T13:29:36+00:00 August 20th, 2017|History|

Clouds in the sky Clouds are made of drops of water or ice. When the wind picks up water from the ocean or from the land on Earth, it can carry the water up into the sky. If there's a lot of water drops together, most of the sunlight that hits the cloud reflects off the water or ice. Then the [...]

Saturn – Planets – Astronomy

By | 2017-08-19T01:37:41+00:00 August 19th, 2017|Physics|

Saturn, as seen from space After Jupiter, Saturn is the next farthest planet out from our Sun. In some ways, Saturn is a lot like Jupiter - it's very cold, and it's mostly made of an ocean of hydrogen molecules, with some helium and a little bit of other things. Like Jupiter and the other planets around our Sun, Saturn [...]

Neptune – Planets – Astronomy – Physics

By | 2017-08-19T01:25:54+00:00 August 19th, 2017|Physics|

Neptune from space Neptune is the farthest planet from our Sun. Neptune is the only planet that is so far away that you can't see it without a telescope. Neptune (NEPP-toon) is an icy planet, about the same size as Uranus. Neptune's probably a lot like Uranus in other ways, too. Neptune has a rocky core [...]

Meteors – Shooting stars – Astronomy

By | 2017-08-18T18:32:54+00:00 August 18th, 2017|History|

Lyrid meteor shower Meteors or meteorites are bits of rock (like granite) and ice - usually a mixture of rock and iron and nickel but sometimes just rock or just iron - from out in space that get sucked into the gravity of the Earth and fall through our atmosphere to the ground. Usually this is because a comet has passed close enough to the Earth for [...]

What is a Comet? – Astronomy – Space

By | 2017-10-16T22:57:26+00:00 August 17th, 2017|Physics|

A comet in the night sky Comets are balls of leftover rock and ice in space. They started out when a star exploded into a supernova.  A nebula formed, and then most of the material in our nebula merged together, about 4.5 billion years ago.. But these balls didn't join up with our planets. Instead, the comets kept on circling around the Sun on their [...]