According to Carl Sagan, we are all made of star particles. The second video in a series of 16 explains what happened after the big bang. It discusses cosmic background radiation, chemistry, galaxies, heavy elements, and the creation of...

This is one cool resource for teaching about polarity! Chemistry scholars observe electron distribution and molecular shape as they select different non-metals and form bonds. The interactive offers two views, surface charge and electron...

What is the difference in alkanes, alkenes, and alkynes? How can you remember which is which? Viewers learn about naming rules, cis-trans isomerism, hydrogenation, halogenation, polymerization, and triglycerides from a short video that...

From hydrogen to ununoctium, this collection of videos has everything you need to begin teaching about the periodic table. Offering descriptions of each element and interesting experiments demonstrating their properties, this resource is...

Future mechanical engineers and automotive technicians read about various solutions to using gasoline in cars. Included are electric, fuel-cell-powered, and hybrid vehicles.

Water is common? Not really! Learn how the polarity of the water molecule gives it tremendous properties that make is quite unique in the universe. Learners will understand surface tension, adhesion, and cohesion, as well as why these...

Chemistry concepts come alive against the backdrop of the Sochi Olympic Winter Games! Here is a captivating clip to share with your chemistry kids. It teaches how the bonds in a water molecule contribute to the formation of a lattice...

The thinking, and science, behind hydrogen-powered cars is beautifully demonstrated in this episode. Spangler shows how, by itself, oxygen is not combustible. However, when some hydrogen gas is added, that changes! His assistant scoops...

The thinking, and science, behind hydrogen-powered cars is beautifully demonstrated in this episode. Spangler shows how, by itself, oxygen is not combustible. However, when some hydrogen gas is added, that changes! His assistant scoops...

This clip picks up right where the Khan Academy's Photosynthesis video left off. Chemicals such as hydrogen and compounds such as NADPH are reviewed along with details including the stroma, thylakoid, lumen, and grana. See the parts of a...

Sixty multiple choice questions cover the entire gamut of chemistry concepts. This is the local section of the U.S. National Chemistry Olympiad, where your chemistry candidates take a shot at entering the national competition. They...

This 60-question comprehensive exam was designed to determine who would go on to compete in the 2000 US National Chemistry Olympiad. Hopefuls answer multiple choice questions regarding all chemistry topics taught in the first year...

In this observation worksheet, scientists observe a burning candle and answer eight post-lab questions. Topics include the phase changes occurring during the observations, the role each part of the candle plays in the chemical reaction,...

An outstanding activity awaits your physics fledglings! After reading about how hydrogen can act as an energy carrier, they examine the electrolysis of water using solar power. They test the gases produced for flammability and will...

Here is a copy of a past national challenge exam that you can use in your general chemistry course as a unit or semester review. Sixty multiple-choice questions query learners on properties of matter, stoichiometry, reactions, and...

Give them permission to burn. Using a tea candle, pairs find out how long the flame will continue to burn while covered by a small glass. Using that information, groups estimate how long the candle will burn under a larger drinking glass...

Curdle milk on purpose. Pupils mix vinegar with milk to produce curds and then explore the properties of the curds. Scholars redo the experiment by changing up one of the variables and observing what happens.

Chemistry is the foundation of good farming. Learners explore how chemical bonding applies to agriculture. The lesson highlights the difference between organic and inorganic compounds and how similar compounds bond in very different ways.

Viewers of a short video learn about salt and water molecules and how their characteristics determine how they interact with each other. Then, they watch a simulation of how the interaction limits the uptake of water in plant roots and...

What are good fats and bad fats? Learn about the structure and function of lipids and how that relates to carbon bonding. Scholars explore the structural differences between saturated and unsaturated fats and examine relevant examples...

Take a look into the future of energy with a video that focuses on future alternative sources of clean energy. Viewers looks at various forms of biomass, hydrogen fuel cells, and nuclear fission and fusion.

Acids and bases have a love-hate relationship. They balance each other so nicely, but they are complete opposites! Learners use these concepts and titration to calculate the molar mass of an unknown substance. The experiment document...

As the most abundant element on the earth, hydrogen requires no replacement. Yet scholars learn to replace hydrogen with a metal to liberate the hydrogen gas. A simple procedure and data table include the necessary information and...