Why is it so difficult to make two solid compounds react? Investigate the concepts of particle collisions and rate of reaction using a quick demonstration. The colorful experiment features two plain, white solids combining to form a...

Bubble, bubble, boil and trouble! What causes common substances like baking soda and vinegar to react the way they do? Welcome your junior chemists to the wonders of acid-base chemistry using a comprehensive and fun...

It's a gas. Middle schoolers build a biogas generator following the directions in this resource. After a few days of observation, they demonstrate that the gas given off by the decomposing manure is flammable. The activity concludes as...

Discover and demonstrate the Lotus Effect and superhydrophobic surfaces with the eighth installment of a nine-part series that teaches scholars about surfaces that exhibit superhydrophobicity. The instructional activity continues...

Climate change affects even the largest and intimidating of landforms—even Mount Everest! A resource helps teach learners the connection between global climate change and its effects on Earth. Activities include videos, class discussion,...

Scholars find out how the government used propaganda to mobilize children to help in the war effort. Lesson exercises include analyzing a quote from Franklin Roosevelt, viewing propaganda images and posters, and participating in a lively...