Which would be the BEST tool to measure the density of a small piece of copper ore?

• A barometer and a balance

• A density probe and a 250 mL beaker

• A metric ruler and a metal detector

• A graduated cylinder and a balance

The graph shows the relationship between mass and volume of samples A, B, & C of a given material. What is the density of the material?

• 20 g/cm³

• 10 g/cm³

• 5 g/cm³

• 2 g/cm³

Students plan to use several rain gauges to compare average monthly rainfall on Virginia's coastal plain and piedmont regions. Which of these is the independent variable?

• Height of the rain gauge

• Brand of the rain gauge

• Size of the rain gauge

• Location of the rain gauge

A student claims that the full Moon occurs about once a month. What process will verify the student's claim?

• Hypothesizing

• Theorizing

• Predicting

• Observing

Between what depths should the bedrock be mined in order to obtain rock with the highest percentage?

• 100-130 feet

• 230-260 feet

• 330-360 feet

• 650-68- feet

A student wanted to determine if building a wall would help stop beach erosion. He built one wall perpendicular to the beach, one parallel to the beach, and a third an outward bending arc. What is the control?

• The parallel wall

• The perpendicular wall

• The curved arc-shaped wall

• The section of beach with no wall

How much water is being measured in this graduated cylinder?

• 10 mL

• 15 mL

• 8 mL

• 18 mL

A graduated cylinder is used to find...

• volume

• mass

• length

• temperature

Which part of an experiment is the statement shown here?

"If the bridge is constructed using oak boards instead of pine, then it will be able to support more weight."

• Problem

• Procedure

• Hypothesis

• Results

Does the graph support or reject the following statement "If the bridge is constructed using oak instead of pine, then it will be able to support more weight"

• It supports the statement

• It rejects the statment

• It neither supports nor rejects the statment