PS.5.1.3 (5.P.3.2) #3: Schoolnet (Heating & Cooling)

Front

What happens to water when it is heated above its boiling point?

Back

It will turn into steam.

Front

Why is a freezer made out of thick plastic?

Back

To keep the cool air from escaping.

Front

What happens to the air in a bicycle tire when the temperature drops?

Back

The cooler temperature causes the air in the tire to contract, making the tire appear flat.

Front

Which color shirt is best to wear on a sunny day to stay cool?

Back

White.

Front

What happens to metal railroad tracks during the heat of a summer day?

Back

They increase in length.

Front

What is the boiling point of water?

Back

100 degrees Celsius (212 degrees Fahrenheit) at sea level.

Front

What is thermal expansion?

Back

The increase in volume of a substance due to an increase in temperature.

Front

What is thermal contraction?

Back

The decrease in volume of a substance due to a decrease in temperature.

Front

Why do we wear lighter colors in hot weather?

Back

Lighter colors reflect sunlight, keeping us cooler.

Front

What is the purpose of insulation in a freezer?

Back

To prevent heat from entering and keep the cold air inside.