7th gd Science Semester 1 Review

Front

What is the least common month for birthdays?

Back

August

Front

What does a Liter measure?

Back

Volume

Front

What is a variable that is kept constant in an experiment?

Back

Control variable

Front

What is the largest source of air pollution in the US?

Back

Industrial Production

Front

What is the process of magma rising and spreading at the ridge called?

Back

Seafloor spreading

Front

What is the definition of a dependent variable?

Back

A variable that is measured in an experiment and affected by the independent variable.

Front

What is the definition of an independent variable?

Back

A variable that is changed or controlled in a scientific experiment.

Front

What is the definition of air pollution?

Back

The presence of harmful substances in the air.

Front

What is the main cause of seafloor spreading?

Back

The movement of tectonic plates.

Front

What is the definition of continental drift?

Back

The theory that continents move over geological time.