Chemistry Science and Skills Practice Test

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

What number is the metric system of measurement based on?

• 1
• 10
• 100
• 1000

The basic unit of length in the metric system is 

• foot
• inch
• meter
• mile

The formula for density is

• volume/mass
• mass/weight
• mass/volume
• volume X mass

How many meters are there in a kilometer?

• 10
• 1
• 1000
• 100

This bullseye demonstrates...

• A. High Accuracy & High Precision

• B, High Accuracy & Low Precision

• C. Low Accuracy & High Precision

• D. Low Accuracy & Low Precision

?

• A. High Accuracy & High Precision

• B. High Accuracy & Low Precision

• C. Low Accuracy & High Precision

• D. Low Accuracy & Low Precision

• A. Student A

• B. Student B

• C. Student C

• D. Cannot be determined