Showing results 1 to 4 of 4
In this activity (on page 2 of PDF), learners create a low-tech refrigerator that requires no electricity to keep food from spoiling.
Moving Without Wheels
In a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.
In this activity, learners apply a dissolving test to known crystals to identify the unknown. Since the unknown is chemically the same as one of the known crystals, it should dissolve similarly.
Crystal Creations: Grow Spikes of Crystals in the Sun
This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.