What is the process called when an acid and a base combine to produce water and salt? OPTIONS:
- neutralization
- dilution
- titration
- physical reaction
A: neutralization

When ice cream is left out of a freezer, the ice cream changes from a ___. OPTIONS:
- solid to a gas
- gas to a liquid
- solid to a liquid
- liquid to a gas
A: solid to a liquid

A student is writing a report on volcanoes. What should the student include to best help explain how a volcano works? OPTIONS:
- a photograph of an active volcano
- a map showing the location of a volcano
- a table of famous volcanoes and last known eruptions
- a diagram showing the structure of a volcano
A: a diagram showing the structure of a volcano

What form of energy is being used when a person pushes a wooden block across the floor? OPTIONS:
- mechanical
- magnetic
- sound
- electrical
A:
mechanical