4 A crystal is a certain type of solid object It is a form of matter Scientists describe mat ter or everything that can be seen according to the way it is made All matter is made up of tiny parts called atoms and molecules If all those parts are arranged in a regular repeating pattern then the object is a crys tal The outsides of crystals have a regular pattern of flat surfaces that meet in sharp corners WHAT ARE CRYSTALS Different substances form different crystal shapes But all crystals of the same substance have the same shape
Crystals
Gemstones and snowflakes represent some of the most memorable crystals, but crystals come in various shapes and can grow in different ways.
About This Book
By: Heather Moore Niver
Illustrated by:
Published by: Rosen Publishing provided by Britannica
