Ohio Grade 8 Science Test Review

Front

What is 'The Origin of Species'?

Back

A book written and published by Charles Darwin, describing natural selection and descent with modification.

Front

What is another term for 'Natural Selection'?

Back

Also known as survival of the fittest.

Front

What is the best title for a study on how colored lights affect plant growth?

Back

The Effect of Colored Lights on Bean Plant Height.

Front

In an experiment, what is the independent variable if Sam tests different types of citrus juice on apple browning?

Back

IV- type of citrus juice.

Front

In the same experiment, what is the dependent variable?

Back

DV- time to brown.

Front

What does friction do?

Back

Friction is a force that acts opposite to the direction of the motion.

Front

What is natural selection?

Back

A process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is the Law of Use and Disuse?

Back

A theory that suggests that body parts used extensively become stronger and larger, while those not used deteriorate.

Front

What is a hypothesis?

Back

A proposed explanation for a phenomenon, which can be tested through experimentation.

Front

What is a controlled variable?

Back

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