Principles of Chemistry and Physics Final Exam

In the laboratory, chemicals that you are finished with should be________.

• mixed together and dumped into a designated container
• returned to their original containers
• poured into the sink
• disposed of as directed by your teacher

The reason for wearing safety goggles in a laboratory is to____.

• improv eyesight
• protect the experimenter from burns
• protect the eyes from harmful substances
• protect clothing from chemical spills

Physical science is the study of___.

• Energy
• matter and energy
• matter
• living things

A testable prediction about a possible solution to a problem is called___.

• a conclusion
• an experiment
• a hypothesis
• a variable

Arrange each of the following in order from largest to smallest

• centimeter, kilometer, meter, millimeter
• millimeter, centimeter, kilometer, meter
• kilometer, millimeter, meter, centimeter
• kilometer, meter, centimeter, millimeter

In a graph, the variable on the horizontal axis is the___.

• variable with the longest range
• variable with the smallest range
• dependent variable
• independent variable

Matter that has a definitive volume and a definite shape is a ___.

• solid
• liquid
• gas
• plasma

a gas-like mixture with no definite shape or volume that is made up of positively and negatively charged particles is a ___.

• solid
• liquid
• gas
• plasma

As a sample of matter is heated, its particles___.

• stop moving
• move more slowly
• move more quickly
• are unaffected

The color of ink is a ___.

• Chemical property
• physical property
• chemical change
• physical change