DCA #2 Review

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one material to another, causing it to change direction.

Front

What is evaporation?

Back

Evaporation is the process by which a liquid turns into a gas, usually due to heat.

Front

What is an insulator?

Back

An insulator is a material that does not conduct heat well, preventing heat transfer.

Front

What state of matter is ice before cooling?

Back

Ice starts as a liquid before it cools and freezes.

Front

What happens to water when it evaporates?

Back

When water evaporates, it changes from a liquid to a gas.

Front

What is the difference between a solid and a liquid?

Back

A solid has a fixed shape and volume, while a liquid has a fixed volume but takes the shape of its container.

Front

What is condensation?

Back

Condensation is the process by which a gas turns into a liquid, often when it cools.

Front

What is the boiling point of water?

Back

The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at sea level.

Front

What is the role of heat in changing states of matter?

Back

Heat can cause a substance to change from solid to liquid (melting) or from liquid to gas (evaporation).

Front

What is a good example of a good conductor of heat?

Back

Copper is a good conductor of heat.