This book explains what atoms, molecules and elements are and how they come together to form compounds. The difference between solids, liquids and gases is discussed, as well as how a substance can change from one state to another. Air pressure, diffusion, expansion and contraction are all demonstrated with useful examples. The book shows how substances can combine to form mixtures and solutions and how distillation and filtration can separate them. The book ends with a look at how scientists are using particle theory to develop new machines and materials for the future.

 

This book is part of a book series called Physical Sciences .

There are 48 pages in this book. This book was published 2007 by Hachette Children's Group .

Andrew Solway has written over 60 books for children. He won the UK Literacy Association's award for best non-fiction children's book in 2004.