You might want a really sturdy umbrella to dig into this video, because we’re discussing 5 animals that have a tendency to rain down from the sky and the reasons we think this might be happening!

You might want a really sturdy umbrella to dig into this video, because we’re discussing 5 animals that have a tendency to rain down from the sky and the reasons we think this might be happening!

In this video Paul Andersen explains how heat can be absorbed in endothermic or released in exothermic reactions. An energy diagram can be used to show energy movements in these reactions and temperature can be used to measure them...

Along with guest co-host Sarita, Dr. Boyd shows you how to make homemade ice cream while explaining endothermic processes. 0:00 – Introduction 0:22 – What you’ll need 0:47 – Explanation of endothermic & exothermic processes 1:45 – Safety...

The chemical process by which a base neutralises an acid, producing a salt and water.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

The minimum amount of energy needed to initiate a chemical reaction.
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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...

The amount of heat energy gained or lost by a chemical system when a process or reaction takes place at constant pressure.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using...

Chemical energy is stored in all compounds, and can be released in chemical reactions.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

A chemical reaction or process that releases heat.
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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 Glossary Films...

Potassium is one of the most unpredictable elements, a soft metal that is essential to life.



Chemistry - Periodic Table - Learni

ng Points.

Potass

ium is a soft metal.

In our bodies potassium...

Why do we cook our food wrapped in aluminium foil? Why does metal rust? It all comes down to oxidation reactions. Discover what happens to cause these reactions, and how to stop them. Chemistry - ReactionsLearning Points. The combustion...

Some reactions take in energy and some release energy. Why? And what are some common examples of each type of reaction? Chemistry - Reactions - Learning Points. An energy change occurs when reactions take place. Exothermic reactions...

Witness the exciting reactions that occur when alkali metals come into contact with other substances. What does this tell us about their properties? Chemistry - Periodic Table - Learning Points. The alkali metals make up Group 1 of the...

Fireworks combine chemical processes, from combustion to spectroscopy, to create spectacular displays. Discover what happens when the fuse is lit. Chemistry - Reactions - Learning Points. Fireworks involve combustion and exothermic...

Discover how elements are formed in the centre of stars, and how some elements are formed in even more spectacular conditions. Chemistry - Periodic Table - Learning Points. Most elements were created in space. At the beginning of the...

We investigate the amount of energy stored in maize snacks and peanuts by burning them. The food is placed under an aluminium beaker of water before being set alight and the temperature change of the water is recorded. We can compare the...

We demonstrate an endothermic reaction by mixing hydrated barium hydroxide with ammonium thiocyanate. When these two solids react they take heat from the surrounding air. Chemistry - Reactions - Learning Points. Breaking bonds takes in...

We look at how the mass of wire wool changes when it is burned. Wire wool is almost 99% iron. When we burn it, it combines chemically with oxygen from the air to form iron(III) oxide. The mass of the product is more than the mass of the...

For centuries, humans have been extracting metals from molten ores. Today, the basic technique remains the same, but how does extraction work? Chemistry - Reactions - Learning Points. Metals can be extracted from rocks if they are heated...

Exothermic reactions release heat energy. Discover how some reactions release heat slowly and some quickly.
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What are the three factors needed to make something burn?
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Learning Points /

> Burning is a chemical reaction.





Burning...

Las reacciones exotérmicas liberan energía al entorno, generalmente en forma de calor, como en una hoguera. Ejemplos incluyen la combustión, la neutralización y la respiración, y se detectan si aumenta la temperatura. Las reacciones...

इस वीडियो में हम एग्ज़ॉथर्मिक और एंडॉथर्मिक प्रतिक्रियाओं के बीच के अंतर पर चर्चा करेंगे। एग्ज़ॉथर्मिक प्रतिक्रियाएं ऊर्जा को बाहर छोड़ती हैं, जिससे तापमान बढ़ता है, जबकि एंडॉथर्मिक प्रतिक्रियाएं ऊर्जा को अपने परिवेश से अवशोषित...

Explore the concept of energy changes in chemical reactions, including exothermic and endothermic reactions. Learn how chemical reactions can either release or absorb energy in the form of heat or light, with examples ranging from...