Sydney Water Flashcards
What is a solid, liquid and gas?
States of matter
What is caused by particles colliding with the sides of a container, such as a balloon?
Pressure
What is the continuous movement of water between the earth and the atmosphere?
The water cycle
What is the an action that makes an object becomes smaller as it cools because the particles move slower and become closer together?
Contraction
What is the amount of space an object takes up?
Volume
What are the characteristics or features of an object called?
Properties
What is the action called when a solid gains energy and turns into a liquid?
Melting
What is a form of energy?
Heat
What is the increase in the size of an object due to an increase in temperature?
Expansion
What is it called when a liquid is cooled until it becomes a solid?
Freezing
What is a measure of the amount of matter in a substance
Mass
What is a physical change that involves heating liquids to a particular temperature at which they become a gas?
Boiling
