Paul Andersen explains how the structure of objects are related to their function and vice versa. He begins with a quick quiz on bicycle construction and ends with a progression of teaching for students grades K-12. He also explains...

Join SciShow as we explore what happens to your stuff after you toss it into the little green bin with the arrows on it.

Steroids: they're infamous for their use in sports. But they're also found in inhalers, creams to treat poison ivy and eczema, and shots to ease inflammation. The steroids in these medicines aren't the same as those used to build muscle....

Mutagenesis is the process of inducing mutations using physical, chemical, or biological mutagens, though mutations can also occur spontaneously during DNA replication. Physical mutagens include ionizing radiation (X-rays, gamma rays)...

Hybridization Process: Carbon atoms undergo sp² hybridization, mixing one 2s and two 2p orbitals to form three sp² hybrid orbitals arranged in a trigonal planar geometry (120° bond angles). Bond Formation: Two sp² orbitals form sigma (σ)...

Boron trifluoride (BF₃) is an exception to the octet rule, where boron has only six valence electrons, leading to unique reactivity and electron-deficient behavior

We compare melting points of lead and tin to the melting point of their alloy, solder. By timing how long it takes samples of each to melt, we discover that the melting point of solder is actually lower than those of both lead and tin....

Delve into the fascinating differences between physical and chemical changes in matter. This video explains how physical changes alter the form but not the chemical composition, using examples like melting butter and chopping vegetables....

This lesson will present the rules for writing the names and chemical formulae of elements and their allotropes.

Definitions included: chemical structure, ionic lattice, metallic lattice, molecule, covalent network, solitary atom,...

For this one we need to be able to interpret NMR data in order to arrive at the correct molecular structure based on an empirical formula. It's not as hard as it sounds!

This live-action video program is about the word liquid. The program is designed to reinforce and support a student's comprehension and retention of the word liquid through use of video footage, photographs, diagrams and colorful,...

This human body video lesson is all about detergents and how they work. Students will love this engaging and interactive video as they learn about science they can do at home.