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Hypotheses, Variables, and Scientific Questions

Total questions: 20

Worksheet time: 39mins

Name
Class
Date
1.

What is a hypothesis?

a)

a possible answer to a testable question

b)

A testable question

c)

a bean plant experiment

d)

information that you gather with your senses

2.

A testable question is...

a)

a bean plant experiment

b)

a possible answer to a testable question

c)

a question that can be answered through an investigation.

d)

a hypothesis

3.

What do you call information that you gather with your senses?

a)

a hypothesis

b)

an observation

c)

a testable question

d)

a variable

4.

A possible answer to a testable question is...

a)

a hypothesis

b)

an observation

c)

an experiment

d)

a testable question

5.

What could be a possible hypothesis for the following testable question?

"Do plants need sunlight to live?"

a)

No.

b)

Yes.

c)

Plants need sunlight to live.

d)

I have 4 plants in my house.

6.

What could be a possible hypothesis for the following testable question?

"What effect does the size of a parachute have on how fast an object falls?"

a)

No

b)

Yes

c)

Plants need sunlight to live.

d)

The smaller the parachute, the more slowly the object falls.

7.

What could be a hypothesis for the following testable question?

"How does salt affect water's boiling point?"

a)

If salt is added to water, then the boiling point will increase.

b)

no

c)

yes

d)

Plants need sunlight to live.

8.

A carefully controlled test to answer a question is called...

a)

an experiment

b)

a hypothesis

c)

a variable

d)

independent

9.

A variable is...

a)

a possible answer to a testable question

b)

another name for a question

c)

something that can change, or vary.

d)

a question that can be answered through an experiment.

10.

A variable that you change in an experiment is called...

a)

a dependent variable

b)

a hypothesis

c)

a variable

d)

an independent variable

11.

A variable that is changed as the result of changing the independent variable is called...

a)

the manipulated variable

b)

an independent variable

c)

a dependent variable

d)

a hypothesis variable

12.

What is the independent variable in the following experiment:

You want to see if a plant can grow without sunlight. You grow two of the same plant; one in the sunlight, and one in the dark.

a)

sunlight

b)

the plant

c)

the water

d)

the soil

13.

What is the dependent variable in the following experiment?

You want to know if salt makes water boil faster. You boil one pot of water with salt, and another without salt.

a)

the water

b)

the time it takes for the water to boil

c)

the salt

d)

the stove top

14.

An observation is...

a)

a hypothesis

b)

the answer to a testable question

c)

something that you change in an experiment

d)

information you gather with your senses

15.

What makes a question testable?

a)

You can conduct an experiment to find the answer

b)

You can find the answer on Google

c)

It is thoughtful

d)

When you notice things around you.

16.

A careful study of something to answer a question is called...

a)

a testable question

b)

an investigation

c)

an independent variable

d)

a dependent variable

17.

True or false:

A variable can change in an experiment

a)

True

b)

False

18.

True or false:

Your senses include things that you see, hear, feel, taste, smell, and touch.

a)

true

b)

false

19.

True or False:

An experiment means looking something up on the internet to find the answer.

a)

True

b)

False

20.

True or False:

A dependent variable is the variable that you change in an experiment.

a)

True

b)

False