Salt is routinely used to melt snow and ice on winter roads. But what is happening at the molecular level to cause this helpful change of state? Chemistry - Atoms And Bonding - Learning Points. When salt is added to water it lowers the...

A substance that maintains a solution in a narrow range of pH. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...

In between two extremes, neither one thing nor another. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...

The beginning of physical or chemical changes on a very small scale in discrete regions of a system. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

We use water every day ... but what do you really know about it?
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Learning Points
Water is the only...

Why do water drops form on cold windows and why does water freeze?
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Learning Points
Condensation is the c
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Find out how advanced separation processes are used to separate substances in complex mixtures.
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Material processes - Separating mixtures - Other means


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Not all liquids act the same ... some can behave very strangely indeed!
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Material processes - Solids, liquids and g
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ses - Liquids />

Learning Points

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iquids do not have a fixed shape....

What are the properties of a liquid?
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Material processes - Solids, liquids and g
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ses - Liquids />

Learning Points

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Find out how we extract salt from seawater on an industrial scale.
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Material processes - Separating mixtures - Separation
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Learning Points
A solution is formed when a...

Learn how to find out the difference between tap water and spring water.
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Evaporation c
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Materials change state all the time, but how and why?
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Learning Points
Melting is the cha
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ge of state from solid to...

Calculating molarity is as easy as plugging numbers into the triangle and using your calculator to either multiply or divide the numbers given in the problem. Calculating molarity is important in chemistry as molarity is a common...

There are 3 different types of solutions - unsaturated, saturated and supersaturated. The main difference between these 3 types of solutions is the amount of solute in each type of solution. In this video, we explain the 3 different...

Specific rotation is a standardized measure of how much a chiral compound rotates plane-polarized light. It's dependent on the substance’s concentration, the path length of the light, and the temperature, providing key insights into a...

Explore potential solutions for the global supply chain crisis revealed by the COVID-19 pandemic. Learn about the importance of adapting consumer habits, valuing workers, and shifting away from the just-in-time model. Discover how...

This video explores how federal programs like the McKinney-Vento Homeless Assistance Grant and Section 8 vouchers aim to combat homelessness, alongside community-based solutions. Learn about the importance of providing housing, income...

These 3 key behaviors will make you come across as the leader in the room. And once you see these 3 skills, you'll be able to notice that most effective leaders demonstrate them. This video will help you reverse-engineer those skills.

Learn How to Communicate Clearly and Confidently with Logical Main Points. <br/>

Learn 3 More Ways to Structure a Persuasive Speech. In Part 2, you'll learn important alternative ways to organize the body points of a persuasive presentation you can use to tailor your message to your audience, message, and situation....

Learn how to appeal to listeners' hearts and minds to be more persuasive and deliver a compelling message. This is Part 3 in a 4-part series on how to write a persuasive speech or presentation.

By the end of this learning object, the student will be able to: Use the quadratic formula to solve quadratic equation.

This video highlights the environmental impact of fast fashion, with over 92 million tons of textiles discarded annually. It emphasizes the problems caused by cheap, mass-produced clothing, including waste, pollution, and...

See how changing the tea or sugar used by a SCOBY biofilm impacts fermentation by measuring the biochemistry of the kombucha solution over time.