This book looks at the aurora borealis or Northern Lights, exploring what they are, what they look like, where they can be seen, and how they are caused.
Explores the relationship between the movement of Earth's water and the sun. Shows how the sun's presence or absence can change water's forms--whether liquid or solid or vapor--and move it from sea to sky and back again, ensuring life's continued existence on Earth.
"Why do the sun, moon, and stars move across the sky? Why is the sun the only star we see during the day? A class of curious first-graders makes observations and looks for patterns in the sky"--Provided by publisher.
This book explores the emerging physical science of space weather and traces its increasing impact on a society that relies on space-based technologies.