water

Explains the health-related reasons why it is so important for people to drink lots of water.

The Sherlock Street detectives concern for the environment instigates a search for the source of pollution in a local stream.

Examines how essential water is to living things, both human and animal.

Discusses the physical properties and importance of water and describes the water cycle.

Describes the properties of water and relates how we make use of water in our everyday activities. Includes experiments.

Presents experiments demonstrating the buoyancy of water.

Uses simple observations and experiments to explore the properties of water.

Questions and answers introduce air, light, and water and the scientific principles involving them.

Discusses the principles of household plumbing, water supply, and personal hygiene.

Relates how the water in a park is used in different ways by the human and animal inhabitants of a neighborhood.