Books

5 results found
Title Authors Description OpenBook ID
Activities in the earth sciences Activities in the earth sciences Helen J. Challand Activities and experiments--such as making charcoal, measuring shadows, and calculating the speed of sound--in the areas of astronomy, weather, and geology. OL4101105W
Activities in the physical sciences Activities in the physical sciences Helen J. Challand Gives instructions for a variety of simple experiments that illustrate some basic principles of physics and chemistry. OL4101107W
Disappearing wetlands Disappearing wetlands Helen J. Challand Examines the ecological role of wetlands and discusses how they are formed, what life they support, and how people modify or destroy them. OL4101108W
Experiments with chemistry Experiments with chemistry Helen J. Challand A brief introduction to chemistry, discussing atoms, molecules, the periodic chart, chemical changes, and states of a matter. Includes simple experiments. OL4101112W
Plants without seeds Plants without seeds Helen J. Challand Examines the characteristics of simple plants that do not have seeds, including algae, fungi, lichen, mosses, and ferns, with a brief look at bacteria. OL4101115W