Introduction to Science

Question 1

Define dependent variable

Answer 1

You measure this.

Question 2

Define independent variable

Answer 2

You change this.

Question 3

Define control variable

Answer 3

This stays the same.

Question 4

What kind of data would you use to draw a bar chart?

Answer 4

Data with different categories (categoric).

Question 5

What kind of data would you use to draw a line graph?

Answer 5

One category of data (continuous) (numbers)

Question 6

List some key safety rules for working in a science lab:

Answer 6

-no running
-wear goggles
-don’t look into test tubes from the top
-don’t throw things
-tie hair back

Question 7

How do you get a safety flame with a Bunsen burner?

Answer 7

Fully cover air hole

Question 8

How do you get a blue flame with a Bunsen burner?

Answer 8

Half cover air hole

Question 9

How do you get a roaring blue flame with a Bunsen burner?

Answer 9

Don’t cover the air hole

Question 10

List some safety precautions you need to take when using a Bunsen burner

Answer 10

-Start with air hole closed
-don’t touch flame

Question 11

Which Bunsen flame is hottest?

Answer 11

Roaring flame

Question 12

Explain why you shouldn’t look at the flame when you burn magnesium?

Answer 12

It gets really bright

Question 13

What else should you do to make this experiment safe?

Answer 13

Hold it away from you.

Question 14

Why should you be careful when doing research online?

Answer 14

It might be wrong and untrustworthy