Jacobs, Marian B

Discusses scientific theories regarding the disappearance of the dinosaurs including disease, climate changes, starvation, and a meteor collision.

Examines common hereditary diseases and ways of avoiding them, discussing diabetes, heart disease, cancer, alcoholism, and the exploration of one's family medical tree.

Provides answers to such flight-related questions as "How do airplane wings work?" "What is thrust?" and "How do helicopters fly?".

Provides answers to such questions about the weather as "What is the atmosphere?", "How does water get into the clouds?", "What makes lightning happen?", and "What is the water cycle?".

Discusses the nature, causes, effects, and uses of tides.

Discusses the atmosphere, wavelengths of light, clouds, rainbows, and what causes the sky to be different colors.

Provides answers to such questions about trees as "How do trees grow?", "How do trees change with the season?", and "How do leaves make food for the tree?".