I took a boat through 96 million black plastic balls on the Los Angeles reservoir to find out why they're there. The first time I heard about shade balls the claim was they reduce evaporation. But it turns out this isn't the reason they...

This video will help you understand the differences between the holiday blues and SAD, learn about the two types of SAD, and discover the possible causes and interventions for this seasonal mood disorder. Dr. Marks breaks down the...

“Function of Thorns” explores the purposes of plant thorns.

In this video students will explore the interaction between living things and their environment. They will learn how to create an experiment where they use seeds to see how they are impacted by air, light, and water. This program...

How Martian Weather Can be Catastrophic for Mission to the Red Planet.

The Moon's polar regions are a shocking place for humans to be.

Follow along and learn about the process of photosynthesis in plants. Then do a simple experiment to demonstrate the process. 0:00 – Introduction 0:07 – What you need 0:17 – Explanation 1:16 – Safety 1:23 – Experiment 2:09 – Results

Learn about how seeds sprout into plants, and find out if it is possible to grow bean sprouts without soil! 0:00 – Introduction 0:17 – What you need 0:45 – Explanation 2:54 – Safety 3:03 – Growing Bean Sprouts Setup 1 3:44 – Growing Bean...

In this experiment, find out if it is possible to grow bean sprouts in the dark, without soil!

While the sun seems yellow to you from childhood, in reality, it is white. The reason why the sun appears yellow is because of the Earth’s atmosphere. When sunlight hits atmospheric particles, it causes electrons and protons to vibrate...

Plants, unlike most living things, produce their own food through a process called photosynthesis. Photosynthesis means 'making using light'. Plants use the energy from the sunlight to make food. The food matter comes from carbon dioxide...

The reason the sun does not set in Alaska for more than two months is because of Earth’s axial tilt. The axial tilt causes the seasons and determines when places like Alaska are exposed to the sun. When the Earth’s Northern...

Young sunflowers face the sun when it rises in the east and then track its motion in the sky throughout the day till it sets in the west in the evening. The process repeats the next day, as sunflowers return to their ‘starting’ position,...

The hottest parts of the world do not lie on the Equator (as our assumption would suggest) but rather around the tropics, i.e., the areas that lie above and below the Equator. Whats the reason behind this? The answer to this question...

A rainbow is not actually shaped like a semicircle or an arc; that is simply the shape that we see. In fact, a rainbow is a circle, but we can’t see the full shape because the horizon cuts off the lower half. However, if you were...

If we had twice the amount of oxygen, we have now, several significant changes would occur. Animals would grow larger as the increased oxygen supply would support their growth. Neutrophils, specialized white blood cells, would exhibit an...

The organelles within plant cells where photosynthesis takes place, harnessing energy from sunlight to make sugars.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning...

A layer in the Earth's atmosphere at 13 to 20km altitude with an unusually high concentration of ozone gas.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and...

Energy from natural resources that replenish or renew themselves, or we can consider inexhaustible, such as sunlight, wind, tidal and wave power.
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A Twig Science
Glossary Film.
Key scientific terms defined in...

A green pigment found in all plants and algae, that enables energy from sunlight to be converted to chemical energy through the process of photosynthesis.
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A Twig Science
Glossary Film.
Key scientific terms...

From 'smoky fog', smog is a form of pollution often associated with cities.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

A suspension of very fine liquid or solid particles in a gas.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

The process that plants use to convert energy from the Sun into chemical energy.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Why are leaves commonly flat, spongy and strikingly green? Discover the different parts of a leaf and their function. Biology - Plants - Learning Points. A leaf is made of many layers sandwiched between tough outer layers. Gases enter...