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English
Description
Living on a world as vast as Earth, it can be easy to forget that our planet is just a tiny speck in a massive universe filled with planets, moons, stars, asteroids, comets, dark matter, and maybe even alien life! In this book, readers in grades 4-9 will learn about Earth's place in the Milky Way and the larger universe, and how humans are learning about the endless frontier of space. This series features a variety of science topics aligned to NGSS...
2) Light Waves
Author
Series
Language
English
Description
A crack of lightning. The blue glow of a phone screen. A blinking firefly. The blazing sun. A camera's rapid flash. No matter the source, light travels in waves, and it does so at a speed faster than anything else in the universe. But what is light, anyway, and how do we study it? In this book, readers in grades 4-9 will learn about light waves and light's properties and how people–and animals–manipulate light for their own purposes. This series...
3) Sound Waves
Author
Series
Language
English
Description
Squeak! Grrr! CRACK! Shhh! Our world is filled with sounds big and small, pleasant and annoying. But how is all that sound created and what can it do? In this book, readers in grades 4-9 will learn how sound travels and the many roles it plays in our world. Sound helps us communicate, but it can do so much more. You might be amazed at how powerful sound waves can be when they let us see into the human body, set off a massive avalanche, or discover...