Most of us don't need more than one whiff to identify that generally unpleasant, characteristic smell we call body odor. But it's a surprisingly complex phenomenon, influenced by our genetic makeup, age, diet, and hygiene. So what is...

Hank describes why plants are so freaking amazing - discussing their evolution, and how their cells are both similar to & different from animal cells.

Howcast - Learn how marijuana can help patients going through chemotherapy in this Howcast video.

Howcast - Learn about marijuana use and cancer in this Howcast video.

Howcast - Find out if marijuana use can give you cancer in this Howcast video.

Howcast - Learn about alternative medicine for erectile dysfunction in this Howcast video.

Howcast - Learn seven cool facts about waxy monkey frogs from reptile and amphibian expert Jungle Bob in this Howcast video.

Howcast - A nice, hot cup of tea isn't just soothing; some varieties have health and diet benefits. See which brew might be right for you.

Pupil outcome: I can create a new word using specific language change techniques. Key learning points: - Blending is when words are 'chopped up' and put together. - Compounds are when two words are merged (sometimes using a hyphen). -...

The Ames test, developed by Bruce Ames in the 1970s, is a bacterial reverse mutation assay used to assess whether a chemical is a mutagen by observing its ability to induce reverse mutations in auxotrophic bacterial strains (e.g.,...

Ames test was developed by Bruce N. Ames in 1970s to test for determining if the chemical is mutagens. Ames test it is a biological assay to assess the mutagenic potential of chemical compounds. It utilizes bacteria to test whether a...

Transition metals are elements in the d orbital. The reason these are unique is that they do not have 1 set charge they become when they become an ion like elements in the s and p orbital. Elements in the d orbital, or our transition...

A covalent compound forms when electrons are shared and this will happen when you have 2 nonmetals, or 2 anions, bonding together. The reason these elements share their electrons is because they have a small difference in...

In this video, we're going to talk about the difference between elements and compounds. We'll cover the basics of chemistry, and explain the differences between elements and compounds.
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What is the difference between a molecule and a compound? What are the main types of chemical bonds? In this video, we will be answering those questions and more.

A covalent compound is formed when 2 nonmetals bond together. When we have a covalent compound we have to use a specific set of naming rules. The first rules is that the first element keeps its name. The second rule is that the second...

This videos will cover how to name covalent compounds. It is important to remember that we have to use prefixes when we name covalent compounds. Covalent bonds, or compounds, form between 2 nonmetals, or 2 anions. In a covalent bond the...

Switching Locations: Understanding Frenkel Defects

In the event that an ion is absent from its lattice site, resulting in a vacancy or a hole in that location, and it occupies an interstitial site, the compound will be able to...

The molecular formula of a compounds gives you the actual formula while the empirical formula gives you a simplified version of the molecular formula. Both formulas are important in chemistry and they both gives us valuable information....

Writing formulas for ionic compounds is all about canceling out the charges! An ionic compound is formed between a cation and an anion, or a positive and negative charge so the goal is to always get the charges to add up to zero! In this...

Scientists at Leicester University have developed a sensitive device that can rapidly analyze chemical compounds in the air and human breath. This technology has the potential to revolutionize air pollution monitoring, as well as have...

This video discusses the issue of the Asian Tiger Mosquito, an invasive species that can transmit various diseases. American Biophysics Corporation has developed a technology called Lurex, which is an attractant that can effectively lure...

In 1803, John Dalton formulated his renowned theory of atoms. The principal tenets of his theory were as follows: ₷ Atoms were thought to be the smallest, hardest, densest, and indivisible particles of matter. Every element is...

This video explores the rigorous testing and development of Formula One tires by Michelin. It highlights the importance of tire performance in F1 racing, considering factors such as high temperatures, different track conditions, and the...