V02733 Illustrates that sounds are vibrations which can travel through air, fluids and solids. Our ears catch these vibrations and send messages to the brain. Simple ideas of pitch and volume are explained. The Fish Unit , and The Stanley Mission Water Unit . Explains all you need to know about hermit crabs.
Project suggests how to raise hermit crabs.
Many wonderful close-up colour photos. Text is packed full of information. Excellent adaptation of a Japanese series. Using wonderful photos, this kit shows how animals are camouflaged in nature. A colour photo is on each left page.