1.4 Where's the Juice? Review

What type of energy transformation happens in a chemical cell?

• Mechanical --> Kinetic

• Chemical --> Electrical

• Electrical --> Chemical

• Potential --> Mechanical

"A prediction or educated guess"

• Hypothesis

• Independent Variable

• Dependent Variable

• Constant

• Control

"Things that stay the same in an experiment"

• Hypothesis

• Independent Variable

• Dependent Variable

• Constant

• Control

"What is being measured in an experiment"

• Hypothesis

• Independent Variable

• Dependent Variable

• Constant

• Control

"A group in an experiment that does not get treatment"

• Hypothesis

• Independent Variable

• Dependent Variable

• Constant

• Control

"What is being tested in an experiment"

• Hypothesis

• Independent Variable

• Dependent Variable

• Constant

• Control

Which sentence below shows a hypothesis for this experiment?

• If you put a gummy bear in an acid, then it will melt faster.

• The vinegar melted the gummy bear most.

• The experiment shows how different acids/bases melt gummy bears.

• Testing the effect of acids/bases on a gummy bear.

A student tests different types of water to see if it helps the plant seeds grow. The student repeats their experiment. What is the only thing they should change?

• The type of water the plant gets.

• The amount of sun the seeds get.

• The amount of water the seeds get.

• Amount of soil the seeds get.

Michael does an experiment with two puppies. He puts 100g of food in two bowls. In one bowl he adds fish oil. He measures how fast the puppies eat. What is the control in this experiment?

• Using another bowl that doesn't have fish oil

• Using dry food

• Measuring how fast they eat.

• Adding fish oil to one bowl

An experiment was done to see if colored water helps celery grow more. What constant would you need to make this experiment better?

• Use different cups for each celery.

• Use blue dye on all celery.

• Use different amounts of water.

• Use the same type of celery in all trials.