Science 4: Changes in Materials Quiz

What happens to the state of an ice cube when it is left at room temperature?

• It sublimates.

• It melts into liquid.

• It remains solid.

• It turns into a gas.

Which process describes the change from liquid to gas?

• Freezing

• Evaporation

• Sublimation

• Melting

What is the term for a mixture where the components are not easily distinguishable?

• Heterogeneous mixture

• Homogeneous mixture

• Solution

• Compound

When a candle melts, what change in state occurs?

• Solid to gas

• Gas to solid

• Liquid to gas

• Solid to liquid

What type of mixture is formed when salt is dissolved in water?

• Suspension

• Heterogeneous

• Homogeneous

• Colloid

What happens to the temperature of a material when it is cooled?

• It disappears

• It remains the same

• It decreases

• It increases

What change occurs when a chocolate bar is heated to make syrup?

• Both shape and size change

• Neither shape nor size change

• Only size changes

• Only shape changes

What happens to metals when they are heated?

• They freeze

• They expand

• They contract

• They melt

What type of mixture is a fruit salad?

• Heterogeneous

• Homogeneous

• Solution

• Colloid

What is the term for the temperature at which a liquid turns into a solid?

• Boiling point

• Melting point

• Sublimation point

• Freezing point