Curated OER
Grow an Alum Crystal
What an exciting lab experiment to conduct with your high school chemistry class! Crystals are formed naturally in the environment. However, allow your blossoming chemists to create their own unique crystals using alum and water. You may...
American Museum of Natural History
Grow Rock Candy
The best way to study crystals is to make your own! A hands-on lesson shows learners how to make their own rock candy from household materials. While they watch the crystals grow, they discover their structure and can even eat their...
Exploratorium
Salty Pits
Yuck, does my deodorant kill that? To test whether deodorant is anti-bacterial, class members use petri dishes to grow control bacteria and bacteria from sweat, and then compare them to see if deodorant effects the growth.
Scholastic
Lesson Five: The Earth, Rocks and Minerals
Apply the principles of geology to a series of collaborative, hands-on class activities. Young earth scientists learn more about igneous, metamorphic, and sedentary rocks before classifying and weathering rocks that they find....