The Ultimate Science Quiz

Matter is

• Anything that has volume

• Anything that has mass

• Anything that has mass and volume

Why do solids have a fixed shape?

• The particles are slowly packed

• The particles are fixed in a place

• The particles vibrate

Not all things melt when heated - some just burn. Which of these things would melt?

• Glass

  Candle

• Sausage 

  Metal key

• Metal

  Crayon

• Woollen sweater

  Book

Why can liquids not be compressed easily?

• The particles are in a random arrangement

• The particles are free to move over each other

• The particles are closely packed

The particles in the picture are tightly held together with very tiny movement. They have shape and fixed volume. Therefore, the picture represents _________.

• solid

• liquid

• gas

How is a gas defined?

• no shape

  no volume

• definite shape

  definite volume

• found in stars

Particles in a ______________________ move quickly and are far apart.

• gas

• solid

• liquid

How does a liquid become a gas?

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Answer explanation

Heating a liquid to its boiling point turns it into a gas. The boiling point of water is 100 degrees Celsuis.

Which state of matter changes its shape and volume when placed into a container?

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Answer explanation

Gases - they do not have a fixed shape. They spread out to change their shape and volume to fill up whatever container they are in.

Why does ice cream melt?

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Answer explanation

Ice cream melts as materials change state as they are heated up or cooled down. The melting point for ice cream is 0 degrees Celsius.