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Water on Earth is in lakes, the ocean, rivers, underground, and frozen glaciers.

Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.

In this activity, learners build a "pneumatic trough," a laboratory apparatus used for collecting pure gas samples over water.

In this activity, learners will use chemistry to create a night sky watercolor painting. They will experiment to learn the effects of mixing crayon, salt, and lemon juice with water color paints.

In this activity, learners use a pneumatic trough (see related activity) to generate and collect pure oxygen.