Describes a reason why we need the gas oxygen to stay alive and how a gas changes into a liquid.
You will discover: What shape a liquid is; how a liquid changes into a solid; why gardens get frosty in winter
This practical guidebook helps children to retain and focus their own imaging skills and to put them creative use in addressing the challenges the face them today.'
Watch out! A giant snowball is rolling down the hill. And it is picking up everyone in its path.'