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Front

What happens to railway tracks when the temperature decreases?

Back

The gaps between the connectors on a railway track allow the track to contract, not expand.

Front

Which substance conducts the least heat?

Back

Plastic conducts the least heat compared to glass, copper, and aluminum.

Front

What occurs when water boils?

Back

Evaporation occurs when water boils.

Front

Which state of matter has a definite shape?

Back

Solid has a definite shape.

Front

Which state of matter has a definite volume but changes shape to fit its container?

Back

Liquid has a definite volume but changes shape to fit its container.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids and gases).

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into vapor.

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 a solid?

Back

A solid is a state of matter that has a definite shape and volume.