An optical device that uses lenses or mirrors to magnify and observe distant objects. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

Find out why the sky is blue.
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The Sun emits white light.


White light can
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e split into the spectrum of...

If you've ever seen a video or photo of lightning that has a pillar of light seemingly beaming upward to the sky, or if you've seen an image of lightning where part of the picture is very bright and the other part is not, there's a...

Have you ever seen clouds that look like ocean waves? Sometimes wavy clouds mix in with other clouds and you don’t notice. Other times they stand out, but may not last very long. Clouds that look like waves on the ocean have a name of...

When the sun is high, there’s sometimes a bright band of color in cirrus clouds between the sun and the ground. It’s a circumhorizon or circumhorizontal arc. The arc is a straight segment that looks a little like a rainbow but it forms...

Lets figure out some new shapes forming in the clouds

Learn about comparative concepts

Learn all about shapes with a fun song

Making of 3D shapes of all sorts at the beach

Learn about the different sweets you eat and what 3D shape they are.

Lets figure out some new shapes forming in the clouds

Learn all about the moon

Learn about stars in this bedtime song.

The Sun identifies the sun as one of many stars that exist in the universe by recognizing that the sun appears to be the largest star in the sky because of how close it is to Earth in relation to other stars.

“Position of the Moon” discusses objects that are visible in the sky, focusing specifically on the moon and its pattern of movement across the sky.

In which Hank explains how and why phycisists think that the univers has no edge.

In this video, the speaker explores the impact of the Vikings on the English language. From the words they left behind to the influence on pronouns, verbs, and place names, the Vikings played a significant role in shaping the English...

Stratus Clouds are part of the water cycle. They are stratified, with soft edges, wider than they are tall, and found at mainly 3 different heights in the atmosphere. They can be made of water droplets or ice crystals, and some create...

Pileus Clouds are also known as Cap Clouds or Scarf Clouds. They form over fast-growing cumulus or Cumulonimbus Clouds, in quiet or stormy weather, as a wispy, smooth band of clouds, curved like a contact lens.

Lenticular Clouds are also known as Lenticularis because they are shaped like a lens. They are common over mountains where air is forced to rise and sink, forming smooth clouds above the mountains and downwind of the mountains. They also...

You've probably seen a fogbow but didn't notice, because they often blend with fog. A fogbow is a cousin of a rainbow, but generally without a lot of color. A fogbow appears as a bright arc in the tiny water droplets of fog. Fogbows form...

Cumulus Clouds can fill the sky, in any season, anywhere on Earth, in different sizes, shapes, colors, heights and combinations. They bubble upward, looking like cotton balls or cauliflower. Cumulus clouds accumulate water or ice, and...

A rainy day spent inside helps a little boy learn about clouds and the water cycle from his mother. He sees the value of rain to plants, animals, people and the planet, even when the rain is not convenient for him. As the rain...

A curious pre-school child asks questions to a big kid about how weather works. Every answer is enlightening yet leads to another question. The little child learns that wind is air that moves, that may be gentle or strong and even...