UOI QUIZ

What are the three main states of matter?

• Hot, Cold, Warm

• Ice, Water, Steam

• Hard, Soft, Squishy

• Solid, Liquid, Gas

The process of a liquid turning into a gas is called ________.

What happens when a solid is heated?

• It turns into gas

• It melts into a liquid

• It disappears

• Nothing happens

What is the process of changing a gas into a liquid called?

• Freezing

• Evaporation

• Melting

• Condensation

The hardest natural material on Earth is _______

• diamond
• iron

• coal

• marble

Coal and oil are examples of ______ fuels.

What is the main use of coal?

• To build houses

• To make fuel for energy

• To create glass

• To make clothes

Ice floats on water because it is ____ dense than liquid water.

• less
• more

• equally

Which of the following can exist in all three states of matter naturally on Earth?

• Carbon

• Oxygen

• Water

• Metal

________ is a precious metal that does not rust and is often used in jewelry.