Threads

Explains how bricks are made and used in construction.

Shows where rice comes from and how it is grown, cooked, and used.

Explains how clay is dug from the ground and used to make many things from drain pipes to china ornaments.

Explains the many uses of water and how clean water gets to the household tap. Includes instructions for a variety of simple experiments.

Describes rocks, their uses, stone quarries, and how to make your own rock.