Curated OER
Science Kids: Science Images: Test Tubes
A simple overhead photo of a group of test tubes, similar to something you might see in a high school chemistry lab.
Curated OER
Science Kids: Science Images: Water Added to Sodium
What happens when you add water to sodium? This photo says it all. Sodium is an alkali metal, part of a group of extremely reactive metals. It doesn't take much for them to react and as this photo shows, a little water is more than enough.