6th Grade_ Energy Transfer and Temperature and Variables

Front

What is a dependent variable?

Back

A dependent variable is the variable that is measured in an experiment. It changes in response to the independent variable.

Front

What is an independent variable?

Back

An independent variable is the variable that is changed or controlled in an experiment to test its effects on the dependent variable.

Front

How does heat transfer occur?

Back

Heat transfer occurs from a hotter object to a cooler object until they reach thermal equilibrium.

Front

What is temperature?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.

Front

What is a control variable?

Back

A control variable is a variable that is kept constant throughout an experiment to ensure that the results are valid.

Front

What happens to sugar when it is added to hot tea?

Back

The sugar dissolves faster in hot tea than in cold tea due to increased molecular movement.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact no longer transfer heat to each other.

Front

What is the effect of temperature on the rate of dissolving?

Back

Generally, increasing the temperature increases the rate at which a solute dissolves in a solvent.

Front

What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself.

Front

What is convection?

Back

Convection is the transfer of heat by the movement of fluids (liquids or gases) due to differences in temperature.