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?".
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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.
Discusses scientific theories regarding the disappearance of the dinosaurs including disease, climate changes, starvation, and a meteor collision.
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?"
Provides answers to such flight-related questions as "How do airplane wings work?" "What is thrust?" and "How do helicopters fly?"