What’s science all about? by Alex Frith, Hazel Maskell,Dr. Lisa Jane Gillespie & Kate Davies

Have you ever wondered what fire is? Or why things fall to the ground? Or what’s alive and what’s not? Scientists have asked all these questions and many, many others too. They‘ve found the answers using science – way of learning about world by watching, coming up with ideas and testing them. And there’s still lots left to learn.

 

Excerpt: What’s biology all about? Biology is all about life- what it is, how it works and why it is the way it is. It covers all forms of life, from the largest living plants and animals to tiny life forms that are much too to see., and it’s also about where these life forms came from, how they’ve changed over time, and how they exist side-by-side all over the earth today. Here are some big questions that keep biologists busy… What is life? It’s normally pretty easy to tell if something is alive, especially if you can see it without a microscope. But biologists study far weirder, tinier things, which may act as if they’re alive in some ways but not others. Even experts often disagree over whether these things are alive or not.

What’s Physics All About: by Kate Davies

If you ever thought the idea of YOU learning PHYSICS was crazy, then this is the book for you.  With clear explanations and helpful illustrations, this book will help you understand a wide range of physics topics.  You’ll learn about speed, motion and mass; about forces like gravity and pressure—electricity, heat, light and sound—it’s all here!  While you read, you will learn the answers to questions that may have occurred to you from time to time.  For instance, why is it harder to stop something heavier that is moving fast than something lighter?

 

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What’s momentum?

Momentum is a measure of how forcefully something is moving in a particular direction.  If something has a lot of mass (such as an elephant), it’s hard to start it moving because the amount of mass weighs it down.  But once it is moving the mass and the velocity it is moving at make it even harder to slow down, or steer, than it was to get it going in the first place.