1.3 Conducting Experiments

Question 1

What is an independent variable?

Answer 1

The variable that is being changed

Question 2

What makes a good hypothesis?

Answer 2

Have a clear question you are trying to answer.

Question 3

T/F It is bad when the error bars overlap

Answer 3

False, it just means the data is similar

Question 4

Spot the I and D variables. The temperature of the water affects how the clams develop.

Answer 4

I: the temperature of the water
D: how much the clams will develop

Question 5

Define control group

Answer 5

the group that stays the game throughout the whole experiment to compare to the other groups that got changed.

Question 6

What variable gets measured during the experiment?

Answer 6

Dependent

Question 7

What do error bars tell us?

Answer 7

how much error is in a set of data/standard deviation

Question 8

what variable does the control group differ from?

Answer 8

the Independent variable

Question 9

Describe Step 2 in making a hypothesis.

Answer 9

If ¨independent Variable¨ (increase or decrease), then ¨Dependent Variable¨ (increase or decrease)

Question 10

T/F you need a control group, I and D variables, and a hypothesis to have a successful experiment?

Answer 10

True