What is a control group?

• The group that "stays the same" or is the baseline

• the group that "changes"

• The item that is different in all groups

• the item we are measuring

What is an experimental group?

• The group that "stays the same" or is the baseline

• the group that "changes"

• The item that is different in all groups

• the item we are measuring

What is a dependent variable?

• The group that "stays the same" or is the baseline

• the group that "changes"

• The item that is different in all groups

• the item we are measuring

What is an independent variable?

• The group that "stays the same" or is the baseline

• the group that "changes"

• The item that is different in all groups

• the item we are measuring

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Dr. Tim is interested in what will make a rat run a maze faster, rat food or cheese. What is the dependent variable?

• The cheese

• The Rat food

• The type of maze

• How fast the rat runs the maze

Tags

NGSS.MS-ETS1-2

Sarah is testing what kind of shampoo promotes hair growth. She has 4 different shampoos. Which is the control group

• The groups with the different shampoo

• the shampoo

• the group without shampoo

• the hair growth

Which one of the following ways to do an experiment would be unethical

• Giving rats their normal food and comparing them to rats with no food

• Have different students read different types of books and see which they like better

• Giving a whale unlimited crill or giving them limited crill to see if it effects the amount eaten

What is something scientists have to think about when setting up an experiement so that it is ethical.

• How it affects environment

• how it affects the patient

• how it affects the people around me

• how will this affect me

Tags

NGSS.MS-ESS3-3

NGSS.MS-ETS1-1

Which bias can be the most "dangerous"?

• Personal Bias

• Cultural Bias

• Experimental Bias

How do you avoid experimental bias?

• Ignore it

• recognize what you want to happen, and then diregard it

• control the whole experiment yourself

• have someone be a "middle man" to expose where you may be effecting the experiment

Tags

NGSS.MS-PS2-5