iLearn Science Review

Front

What is the scientific method?

Back

A series of steps used by scientists to solve a problem or answer a question.

Front

What is an independent variable?

Back

The type of variable in an experiment that is deliberately changed by the scientist.

Front

What are consumers in an ecosystem?

Back

Organisms that get their energy from eating other organisms.

Front

Why are producers important in an ecosystem?

Back

They use energy from the sun to make their own food and are the base of energy pyramids.

Front

What is an ecosystem?

Back

All of the living and non-living parts of the environment in the same area.

Front

What is a dependent variable?

Back

The variable in an experiment that is measured or observed.

Front

What are constants in an experiment?

Back

Factors that remain the same throughout an experiment.

Front

What is the role of decomposers in an ecosystem?

Back

Organisms that break down dead material and recycle nutrients back into the environment.

Front

What is a food chain?

Back

A sequence that shows how energy and nutrients flow from one organism to another.

Front

What is a habitat?

Back

The natural environment where an organism lives.