Students explore matter by conducting an in class demonstration. In this liquid mixture instructional activity, students identify the difference between a solution in which a solid dissolves into liquid, and a suspension where the solid...

Learners explore aquariums. For this fish and ecosystems lessons, students establish a freshwater aquarium environment using materials provided. Learners read about and care for the classroom fish.

Young scholars discover correlations in food preferences of invertebrates, and assess stream health through use of kicknets, invertebrate keys, CBL systems and probes.