Scientific Variables

What is the main focus of Mr. Koenig's experiment?

• How much sunlight the plants get

• How much soil is used

• How much water the plants receive

• How tall the plants are

What do we call the variable that is changed in an experiment?

• Constant variable

• Controlled variable

• Independent variable

• Dependent variable

What is the purpose of controlled variables in an experiment?

• To measure the results

• To keep the experiment fair

• To change the outcome

• To confuse the results

What does the dependent variable depend on?

• The temperature/Controlled variable

• The amount of sunlight/Controlled Variable

• The amount of water/ Independent Variable

• The type of plant/Controlled Variable

What should you remember to have a fair test in an experiment?

• Change everything

• Keep everything different

• Change one thing and keep others the same

• Only measure one thing