Physical Science Final Exam Review (A)

Front

What is a substance made of only one type of atom called?

Back

An element.

Front

What is a DEPENDENT (or responding) variable in an experiment?

Back

The item being watched, measured, and recorded for your data table (using timers, rules, thermometers, etc).

Front

Which of the following is NOT an example of convection currents? Warm air rising in a house, Cold water sinking to the bottom of the lake, Water flowing through pipes, Steam from hot soup rising into the air?

Back

Water flowing through pipes.

Front

What is the control center of your body called?

Back

Brain.

Front

TRUE or FALSE: In order to change the state of matter, you need to increase or decrease the energy (heat).

Back

TRUE.

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is the scientific method?

Back

A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What is the difference between an independent variable and a dependent variable?

Back

An independent variable is the item that is changed on purpose by the experimenter, while a dependent variable is what is measured or observed.

Front

What is energy?

Back

The ability to do work or cause change.