SOL Review Scientific Investigations

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

You are doing an experiment recording the growth of plants under different amounts of sunlight. What is the dependent variable?

• The sunlight
• The growth
• The experiment
• The amounts of photons

The variable that is the result of the experiment is the 

• constant
• independent variable
• dependent variable
• control

The variable that causes a change is the

• constant
• independent variable
• dependent variable
• control

What is the dependent variable for the hypothesis: If ice melts in salt & fresh water, then it will melt faster in salt water.

• The melt time
• The amount of salt
• The fresh water
• The size of the beaker

What is a constant variable for the hypothesis: If ice melts in salt & fresh water, then it will melt faster in salt water.

• The amount of salt
• The melt Time
• The fresh water.
• The temperature of the water

Making a statement or claim about what will happen in the future based on past experience or evidence is called

• observing.
• inferring.
• predicting.
• classifying.

In science, a hypothesis must be

• correct.
• manipulated.
• controlled.
• testable.

What is a law?

• Describes what happens
• Explains a process

Which of the following is true about theories and opinions?

• It is about right and wrong
• theories explain observations clearly and consistently
• A theory doesn't have to be repeatable