In this video, we do an example of radioactive decay. How do you solve for k? This video shows how to use logarithms (and natural logarithms) to solve for the k or t value. From there, you can use your function to solve word problems.

In this video, you'll learn the fundamentals of gas laws and how they describe the behavior of gas molecules. Students will gain a clear understanding of key variables—pressure, volume, temperature, and moles—and their significance in...

Discusses the impact of altering reactant or product concentrations on the equilibrium state

Molar mass is the mass of 1 mole of a substance. The molar mass of elements can be found on the periodic table and the molar mass of compounds can be found by adding together the molar masses of the elements present in the compound....

Understanding the mole and how to use it is essential to your success in chemistry. The mole just represents the amount of a substance. 1 mole of anything is equal to 6.02 x 10^23 which is known as Avogadro's number. This number tells us...

Contrary to popular belief, temperature is not how hot or cold something is! This is a common misconception that many high school chemistry and science students have. In this video we will dive in to what temperature actually is and what...

Researchers at King's College in London have discovered that galangal, a root vegetable commonly used in Thai cuisine, has shown potential as a cancer treatment. In laboratory tests, galangal extract was found to efficiently kill cancer...

David, Vincent, and Agathe attempt to walk on water by exploring the properties of non-Newtonian fluids. Using polystyrene floaters and a custom-built swimming pool filled with cornstarch and water, they test whether modifying the...

Properties of silica | Silicon -Oxygen bond | SiF4, H2SiF6 | Silicon carbide SiC| Hardest substance | piezo-electric effect|Applications of quartz ; Silica, or silicon dioxide (SiO2), is a hard, white, and translucent material...

The light spectrum is the collection of colours that are generated when light is dispersed through a medium, such as a prism. This dispersion reveals the various wavelengths of visible light, with each wavelength corresponding...

Ferromagnetic materials, such as Fe and Ni, exhibit permanent magnetism even when the magnetic field is removed. These materials are formed by the spontaneous alignment of magnetic moments due to unpaired electrons in the same...

It’s a mile long and 150 feet high, and covered in the most spectacular ice falls anyone has ever seen. And it’s all human made. The Ouray Ice Park is the world’s premiere location for ice climbing and attracts visitors from around the...

There are many kinds of glue all around us. Some come from nature, and some we can create. Watch as Dr. Boyd gives step-by-step instructions on how to create your own glue at home. Minute 0:30 – Introduction Minute 0:42 – What you need...

Dr. Boyd explains the chemical in pepper spray that causes irritation, and he also explains what to do if you are ever exposed to pepper spray. Minute 0:00 – Introduction Minute 0:07 – Background Minute 0:33 – Explanation of chemicals...

Using “cohesion,” Dr. Boyd shows you how you can make water run along a piece of string. 0:00 – Introduction 0:24 – What you need 0:45 – Explanation of cohesion 1:09 – Safety 1:25 – Cohesion Experiment 1 3:35 – Experiment 2 Explanation...

Will this be the last video I make about SI units? Quite possibly. There's something about being so precise and defining the systems within which science works. When we can more accurately and routinely measure a kilogram, a mole, a...

Radioactivity is the property through which a heavier, unstable nucleus assumes a more stable state by emitting radiation. The process through which a nucleus turns into a stable one is called radioactive decay. But is radioactivity or...

Heat capacity is defined as the amount of heat energy required to raise the temperature of a given mass of a substance by one unit. Specific heat capacity and molar heat capacity are properties derived from the heat capacity of a...

The pH scale is used to determine whether a substance is acidic or basic, and to calculate how strong a chemical it is. A pH value is a number that ranges from 1 to 14 for most common chemicals, with seven being the middle or neutral...

Relating to heat or temperature.
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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 reinforce...

The substance that dissolves into a solvent.
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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...

A transparent material shaped to refract light, such that it converges or diverges from a single point.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and...

The tendency of a substance to undergo 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 definitions. Twig Science...

The substance, such as water, in which another substance can dissolve.
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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...