Why Do Volcanoes Erupt?
Part of the Tell Me Why, Tell Me How series
Presents an introduction to volcanoes, describing how magma is created beneath the Earth's crust, the part magma plays in volcanic eruptions, and the different types of eruptions that can occur.
Why Does the Sun Set?
Part of the Tell Me Why, Tell Me How series
Provides comprehensive information on the process of how and why the sun sets.
Why Do Leaves Change Color?
Part of the Tell Me Why, Tell Me How series
Explains the life cycle of a tree and how the leaves play an important part in providing nourishment.
Why Does It Rain?
Part of the Tell Me Why, Tell Me How series
Provides comprehensive information on the process of why rain falls from the sky.
Why Do Bears Hibernate?
Part of the Tell Me Why, Tell Me How series
Text and photographs describe the function of hibernating, focusing on bears. Includes a related activity, a glossary, and resources.
How Do Mountains Form?
Part of the Tell Me Why, Tell Me How series
An introduction to the way in which all mountains form and change.
How Do Waves Form?
Part of the Tell Me Why, Tell Me How series
Photographs and easy-to-follow text describe how waves form, explaining the importance of wind and the different kinds of waves.
Why Do Earthquakes Happen?
Part of the Tell Me Why, Tell Me How series
Provides comprehensive information on earthquakes and their causes.
Why Does It Thunder and Lightning?
Part of the Tell Me Why, Tell Me How series
Photographs and easy-to-follow text help readers understand what causes thunder and lightening, explaining what thunder is, why thunder and lightening always occur together, and how thunderstorms work.
How Do Tornadoes Form?
Part of the Tell Me Why, Tell Me How series
An introduction to tornadoes, covering how, when, and where they form, the damage that can be caused by them, and how to prepare for one.
How Do Tadpoles Become Frogs?
Part of the Tell Me Why, Tell Me How series
Explains about metamorphosis and how tadpoles become frogs, and how some frogs hatch from eggs as froglets, others are hatched as tadpoles and given a piggyback ride to water by their parents, and still others provide a nursery for their young.
How Do Caterpillars Become Butterflies?
Part of the Tell Me Why, Tell Me How series
Provides comprehensive information on the process of caterpillars changing into butterflies.