Free Printable 3rd Year Variables and Variation Check

1.

What is an independant variable?

a)

a variable that stays the same in an experiment

b)

the result of an experiment

c)

a variable that is changed by the scientist

d)

a variable that changes because of the experiment

2.

What is the control group in an experiment?

a)

a variable that changes due to the independent variable

b)

a variable that does not change during an experiment

c)

a single variable that is changed

d)

the result of the experiment

3.

What is the dependent variable?

a)

a variable that the scientist changes

b)

a variable that does not change during an experiment

c)

the result of the experiment

d)

a variable that never changes

4.

Students of different ages were given the same puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the IV?

a)

Student ages

b)

The puzzle

c)

The time it takes to complete

d)

None of the above

5.

Students of different ages were given the same puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the DV?

a)

Student ages

b)

The puzzle

c)

Time to finish the puzzle

d)

None of the above

6.

Students of different ages were given the same puzzle to put together. They were timed to see how long it took to finish the puzzle. List 3 other variables they need to keep the same, and measure. (Confounding variables)

4 lines

7.

Students of different ages were given the same puzzle to put together. They were timed to see how long it took to finish the puzzle. What is the control variable?

a)

Student ages

b)

The puzzle

c)

Time it takes to finish the puzzle

d)

None of the above

8.

a)

Hours is the dependent variable

b)

Number of E. Coli Bacteria is the dependent variable

9.

a)

Hours is the independent variable

b)

Number of E. Coli Bacteria is the independent variable

10.

You set up an experiment on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the independent variable?

a)

type of plant

b)

plant growth

c)

the liquid the plant is given

d)

the amount of sunlight

11.

You set up an experiment on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?

a)

type of plant

b)

plant growth

c)

the liquid the plant is given

d)

the amount of sunlight

12.

You set up an experiment on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the control?

a)

type of plant

b)

plant growth

c)

the liquid the plant is given

d)

the amount of sunlight, soil, and music

13.

What is the scientific word that refers to the differences within a species?

a)

variation

b)

characteristics

c)

features

d)

inheritance

14.

What causes variation?

a)

inherited factors only

b)

environmental factors only

c)

inherited and environmental factors

15.

Which two characteristics show variation as a result of inherited factors only?

a)

blood group

b)

pierced ears

c)

number of freckles

d)

natural eye colour

e)

height

16.

Which two characteristics show variation as a result of environmental factors only?

a)

blood group

b)

pierced ears

c)

Scar

d)

natural eye colour

e)

height

17.

Which two characteristics show variation as a result of a combination of both inherited and environmental factors?

a)

blood group

b)

pierced ears

c)

number of freckles

d)

natural eye colour

e)

height

18.

For which type of variation can a measurement have any numerical value?

a)

continuous variation

b)

discontinuous variation

19.

If you were to investigate the height of everyone in your class, what type of data would you be gathering?

a)

continuous variation

b)

discontinuous variation

20.

Which three features show discontinuous variation?

a)

blood group

b)

height

c)

foot length

d)

eye colour

e)

gender

21.

How should the data in the table shown be presented?

a)

scatter graph

b)

bar chart

c)

histogram

22.

Features with continuous variation have a normal distribution curve, which is shown by the bars on the graph. What shape do the bars form when there is normal distribution?

a)

straight line

b)

s-shaped curve

c)

bell-shaped curve

23.

Which two scattergraphs show a correlation (relationship) between the two plotted variables?

a)

scattergraph A

b)

scattergraph B

c)

scattergraph C

d)

scattergraph D

24.

Tree height is an example of...

a)

discrete variation

b)

disruptive variation

c)

continuous variation

d)

discontinuous variation

25.

Which one of the following shows continuous variation?

a)

Blood group

b)

Height

c)

Male or female

d)

Tongue rolling

3rd Year Variables and Variation Check

Total questions: 25

Worksheet time: 49mins

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