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Grade 4 - 6

1738 records found. Displaying 1681 - 1692.

Science

Why Are Oceans Important?

Why are oceans some of Earth's most important resources? This title explores the many ways humans and other living things depend on oceans, from helping to clean the air and regulating the… More →

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Animals

Why do animals become extinct?

Animals have become extinct for many reasons. The most famous example, the extinction of the dinosaurs, may have been the result of an asteroid hitting Earth or an Ice Age freezing them to… More →

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Science

Why do animals migrate?

Autumn is the time that many birds fly to places with warmer climates. Spring signals their return trip. Many birds migrate to keep warm and to find food that is not available in their winter More →

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Why Doesn't the Moon Fall Out of the Sky?

How can a plane fly upside down? Why aren't there any super-giant humans? Why doesn't the Moon fall out of the sky? answers all these intriguing questions about the science of forces, and much more. More →

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Health

Why Do I Bleed?

Want to know how arteries carry oxygen-rich blood throughout our bodies and what blood type means? Fun illustrations and entertaining text help give kids a clear understanding of the blood… More →

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Health

Why Do I Drool?

Want to know why you drool on your pillow or what your taste buds are for? Fun illustrations and entertaining text help give kids a clear understanding of the form and function of the mouth,… More →

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Health

Why Do I Grow?

Want to know how bones, fingernails, and hair form and grow throughout our lives? Fun illustrations and entertaining text help give kids a clear understanding of how our bodies grow and… More →

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Health

Why Do I Itch?

Have you ever wondered how your body sends you itchy signals? Fun illustrations and entertaining text help give kids a clear understanding of how insect bites, dry skin, and allergies cause… More →

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Health

Why Do I Poo?

The human body is amazing, and at times, disgusting. Fun illustrations and entertaining text help give kids a clear understanding of bodily functions related to the digestive system, as well… More →

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Health

Why Do I Sneeze?

Is it the cat, a dandelion, or just a common cold? Fun illustrations and entertaining text help give kids a clear understanding of the everyday mechanisms required to create a sneeze. Readers More →

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