National Park Service
Glaciers and Water
Explore the amazing power of glaciers with a hands-on earth science experiment! After first learning basic background information, learners go on to create their very own chunks of frozen water and gravel in order to observe first-hand...
Beyond Benign
Daphnia Bioassay LD50
De-icing materials may have a harmful effect on our environment; have your class perform an experiment to test the nature of these effects. Scholars monitor the survival rate of a sample of daphnia as the concentration of a de-icing...
Curated OER
Sustaining Life Under the Ice
Students design and conduct experiments in order to identify the components of lake water environments that are affected by winter ice cover. They use the experiment results to propose effective human management of these ecosystems.
Curated OER
The Wonderful world of Water
First graders examine the water cycle through readings and experiments. In groups, they conduct interviews with others and use the information to create a chart displaying the various uses of water. After brainstorming lists of ways to...
Curated OER
Acid Rain and pH
Students study acidic and alkaline balance. In this acid and pH levels instructional activity, students read information about pH, the formation of acid rain and its impact on environments. Students then complete an experiment to learn...