Which tool should a student use to compare the masses of two small rocks? OPTIONS:
- balance
- hand lens
- ruler
- measuring cup
A: balance

Which of these is the main function of a cell wall? OPTIONS:
- To make food
- To store water
- To provide support
- To make the plant green
A: To provide support

Vinegar and water are placed in a container and stirred. What is formed when they are mixed? OPTIONS:
- gas
- solid
- solution
- compound
A: solution

Vein deposits of gold and silver are often formed in areas that have experienced which geologic process? OPTIONS:
- igneous intrusion
- transport by water
- chemical weathering
- compaction by pressure
A:
igneous intrusion