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Lab Safety, Tools, and SI

Total questions: 10

Worksheet time: 8mins

Name
Class
Date
1.

An accepted explanation of a large body of information, with many parts. It can be changed as new information arises.

a)

Hypothesis

b)

Law

c)

Theory

2.

A tentative explanation that accounts for a set of facts and that can be tested by further investigation.

a)

Hypothesis

b)

Theory

c)

Law

3.

A concise statement of fact describing a phenomenon, generally accepted to be true and universal.

a)

Hypothesis

b)

Theory

c)

Law

4.

Which of the following is a well written hypothesis?

a)

Room temperature water is best for plant health.

b)

Gel pens are better than ballpoint pens.

c)

I think there are more sunspots this year.

d)

If a review activity is delivered before a quiz, then student scores will increase.

5.

Find the range:


9, 15, 8, 17, 13, 12

a)

8

b)

9

c)

17

d)

12

6.

Which of the following are observations:

a)

Watching birds build a nest

b)

Googling something

c)

Noticing a certain smell near a pond

d)

Feeling the texture of tree bark

e)

Reading a book about plants

7.

Give one example of a unit of distance

4 lines
8.

What are constants?

a)

the things being measured in an experiment

b)

things kept the same throughout an experiment

c)

math equations that describe scientific phenomena

d)

the group with no treatment

9.

Find the mean:


5, 4, 11, 18, 12, 16

a)

11

b)

7

c)

14

d)

4

10.

When testing the hypothesis "If exposed to smog, plants will grow more slowly.", what is the dependent variable.

a)

Speed of growth

b)

carbon dioxide

c)

air quality

d)

type of plant