Experimental Design

What is the definition of the independent variable?

• The part of the experiment that stays the same
• What you change in an experiment
• What is being measured
• All of the above

What is the part of the experiment that stays the same?

• constant
• variable
• independent variable
• dependent variable

What is the definition of the dependent variable?

• What is being measured
• What you think will happen in the experiment
• What you are changing
• The part of an experiment that is compared to

What is a constant?

• What you observe with your senses
• Part of the experiment that stays th same
• trials
• data

What is an observation?

• Something that you observe
• What you predict will happen in the experiment
• A fact based on your senses

An educated guess that must be represented with an if then statement

• data
• dependent variable
• hypothesis
• variable

The part when the scientists tests his/her hypothesis

• experiment
• constant
• hypothesis
• None of the above

Which ex. are a hypothesis?

• If the sugar is in warm water then it will dissolve but if the sugar is in cold water it wont dissolve.
• If I put cold milk in my hot chocolate then it will be colder.
• If i eat mints then my breath will smell minty
• all of the above

What is a variable?

• Part of the experiment that is able to change
• Opinion
• Part of the experiment that stays the same
• The part of the experiment that is being compared to

Which are part of an experiment?

• control
• constant
• independent variable
• all of the above