Objective:
To observe the lasting effects of a small amount of pollution on a stream and its wildlife.

Standards:
Structure of the Earth System (water cycle), Geochemical Cycles (cycling of elements between Earth, water, atmosphere, and organisms), Types of Resources (types of resources: air, water, soil, food, fuel, quiet places, beauty, and security), Changes in [...]

Objective:
To demonstrate the proportion of the Earth’s fresh versus salt water and to discover how much of this is usable by certain organisms while relating this to human influence and impact around the world.

Standards:
Structure of the Earth System (water cycle), Geochemical Cycles (cycling of elements between Earth, water, atmosphere, and organisms), [...]