Atoms and Molecules
"Readers will learn what atoms and molecules are and what's inside them; how we measure matter; what solids, liquids, and gases are; when matter changes state; melting and boiling points; and the water cycle."
What people are saying - Write a review
Other editions - View all
air inside amount of matter atom shares atoms joined atoms or molecules behave when combined BLOCKS OF MATTER boiling point bond building blocks called molecules canister carbon dioxide Chemical properties describe compound condensation container cooled cornstarch Democritus dense than water denser density different atoms different kinds Discovering the nucleus Ernest Rutherford example float forces holding gases gold atoms hard Hot air balloons hydrogen atom kinds of atom lead atom less dense liquid to gas lump magnets Mark the level mass Matter Change metal called molecules are held Molecules inside molecules move molecules vibrate number of electrons oxygen atom pennies permanent marker physical properties plastic bricks pull Repeat step Scientists shape share its electrons sink six ice cubes slowly Solids are usually spring balance Substances can change surface tablespoons tiny tray type of atom types of matter volcano WATER CYCLE water droplets water level water vapor weight