Why and how do substances dissolve? Discover what happens when you create a solution. Chemistry - Atoms And Bonding - Learning Points. A solution is the mixture formed when a solid dissolves in a liquid. A solvent is a liquid that can...

Some drugs are used recreationally, with potentially harmful consequences. Find out which drugs are used inappropriately and the harm they can cause. Biology - Healthy Living - Learning Points. Drugs affect the chemical processes in our...

Lasers are usually associated with heat. But scientists have instead used them to reach the coldest temperature ever recorded. Could they reach absolute zero? Physics - Energy And Radioactivity - Learning Points. Absolute zero is...

The properties of strong acids and alkalis can be extremely harmful. Where do we find them, and how can we tell how acidic or alkaline a substance is? Chemistry - Reactions - Learning Points. Bases neutralise acids, and if a base...

We use filtration and evaporation to separate out a mixture of water, sand and salt. The sand is removed using filtration, as it did not dissolve in the water. The remaining solution is heated until the water evaporates, leaving behind...

We make slime using borax, water and food colouring. The slime is a non-Newtonian liquid. A non-Newtonian liquid can behave like a liquid or a solid depending on the pressure applied to it. Chemistry - Atoms And Bonding - Learning...

We release carbon dioxide from a fire extinguisher against a dark cloth to see what happens. The expanding gas cools as it leaves the extinguisher, forming a visible dry ice solid on the cloth. As it warms, the carbon dioxide vanishes...

Discover that altering the number of successful collisions between particles is key to changing the rate of chemical reactions. How this can be manipulated? Chemistry - ReactionsLearning Points. New substances are made when particles...

Journey inside the cell to see how the cell membrane acts as both a barrier and an entrance. How does it take in nutrients while keeping out potentially damaging molecules? Biology - Cells And DNA - Learning Points. The cell membrane...

Fast-moving ground-level flows of hot gases and rock fragments, dust and ash from a volcanic eruption. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

Did you know that the Statue of Liberty hasn't always been green?
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Learn how to find out the difference between tap water and spring water.
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By the end of this learning object, the student will be able to: Summarize the important points of chemical equations and reactions.28728

Dive into the bubbling world of 'Acid Base Reactions' and see the amazing chemical dances that happen when acids and bases meet! It's a fun, colorful science lesson made simple for kids.

Dive into 'Why Do We Measure pH?' to find out how this tiny scale helps us tell if something is sour or slippery! A quick, fascinating look at chemistry in our daily lives, perfect for young scientists.

Slide into 'What Is The pH Scale?' to discover the colorful world between acids and bases! A quick, exciting dip into science, ideal for kids who love to explore.

Dive into 'What Is An Acid?' to uncover the sharp, sour world of acids and their amazing reactions! A quick, bubbling journey into science, perfect for curious young chemists.

Learn about the components of a chemical reaction, including reactants and products, and how chemical bonds are affected during the process. Explore examples like cookies and rusty bike fenders to understand these concepts...

Explore the concepts of physical and chemical changes in matter through examples like cookies and rust. Learn how to distinguish between physical properties and chemical reactions.<b<br/>r/>

All About Chemical Reactions part 1

This video provides a comprehensive overview of the history and evolution of surgery as a medical practice. The video discusses key advancements in surgical techniques and technology over the centuries, such as the use of anesthesia,...

Live-action video footage illustrates whether the mixing of two or more substances results in new substances. Step-by-step instructions help students set up their own investigation to prove this concept. This video correlates to the Next...

In this video students will observe that regardless of the type of change that occurs in heating, cooling, or mixing, the total weight of matter is conserved. A hands-on demonstration helps students set-up their own activity to prove...

Researchers at the University of Bath have developed a groundbreaking iontophoresis technique that allows substances to be delivered into the body without the need for needles. This innovative method offers a less invasive way to...

Biotechnology is revolutionizing the field of medicine by introducing biochips that can accelerate the drug discovery process. These biochips, developed by electronic chip maker Infineon, utilize advanced technology to analyze genetic...