Young scholars observe how salinity affects the time it takes water to freeze. They participate in an experiment to determine that ice is essentially salt-free whether formed from fresh or salt water

Students explore why the oceans do not freeze. They explain why they think the Atlantic Ocean does not freeze. Students are given background information about what they are doing. They create a hypothesis about what they believe...

Students explain how melting glaciers affect global warming. In this earth science lesson, students investigate the change in ice density as it melts. They discuss the human and environmental impact of rising sea levels.

Students examine how to conserve water. They also discover how to prevent water pollution. They examine the Earth's water distribution as well.

Students observe a model of the distribution of the earth's water and compare the relative volumes and percentages of types of water on earth.