Exploring Matter and Its Changes

What are the three states of matter?

• Solid, Liquid, Plasma

• Solid, Liquid, Gas

• Solid, Gas, Plasma

• Liquid, Gas, Plasma

Which of the following is a physical change?

• Burning wood

• Rusting iron

• Melting ice

• Baking a cake

Which of the following is a chemical change?

• Freezing water

• Dissolving sugar in water

• Burning paper

• Cutting paper

What is density?

• The amount of space an object takes up

• The amount of mass in a given volume

• The force of gravity on an object

• The ability of an object to float

What is buoyancy?

• The ability of an object to sink

• The ability of an object to float

• The amount of mass in a given volume

• The force of gravity on an object

What is evaporation?

• The change of state from gas to liquid

• The change of state from liquid to gas

• The change of state from solid to liquid

• The change of state from liquid to solid

Which of the following is an element?

• Water

• Carbon dioxide

• Oxygen

• Salt

Which of the following is a compound?

• Hydrogen

• Oxygen

• Water

• Nitrogen

What is an atom?

• The smallest unit of a compound

• The smallest unit of an element

• A combination of two or more elements

• A combination of two or more compounds

What is a molecule?

• The smallest unit of an element

• A combination of two or more atoms

• A single atom

• A type of element