1. What is matter?
A. Anything that has mass
B. Anything made of atoms and molecules
C. Anything that takes up space
D. All of the above

2. Scientists and Engineers both contribute to society. What is the role of scientists?
A. To use knowledge to design solutions related to problems
B. To develop knowledge that allows us to understand the world and universe

3. What is a Theory?
A. Explains and describes the behavior of physical systems and the universe as a whole
B. The description of the relationships between observable phenomena
C. An explanation about the natural world that has been repeatedly confirmed through observation and experiment and accepted by the scientific community
D. An educated, testable guess that predicts how variables are related in an experiment or model system