Free Printable 2021 Unit 1 Biology Practice Test

1.

What SI unit is used to measure length?

a)

meters

b)

liters

c)

centimeters

d)

kilograms

2.

Convert 12 km to m

a)

120 m

b)

1,200 m

c)

12,000 m

d)

120,000 m

3.

In a controlled experiment, how many independent variables can be worked with at a time?

a)

one

b)

none

c)

two or more

d)

how ever many makes sense.

4.

Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.

a)

height of the ramp

b)

distance traveled by the ball

c)

mass of the ball

d)

weight of the ball

5.

An experiment is performed 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, the independent variable is ...

a)

The type of plant

b)

The amount of sunlight

c)

The type of music

d)

The type of liquid

6.

Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the dependent variable

a)

Type of fertilizer

b)

Size of sunflower

c)

Type of sunflower

7.

What in an experiment is the thing that is measured?

a)

independent variable

b)

dependent variable

c)

control group

d)

experimental group

8.

What does the prefix Kilo mean

a)

100

b)

1

c)

1000

d)

10,000

9.

Convert 0.25 m to mm

a)

25

b)

2.5

c)

250

d)

0.025

10.

What is a factor that is measured for change in an experiment?

a)

control

b)

constant

c)

independent variable

d)

dependent variable

11.

What is the factor that an experimenter changes on purpose?

a)

Dependent Variable

b)

Independent Variable

c)

Constant

d)

Control

12.

What are all the things that are kept the same in an experiment?

a)

controls

b)

data

c)

constants

d)

independent variables

13.

What is the effect of salt water on the average of the height of the 3 tallest blades of grass?
What is the independent variable in the above question?

a)

salt water

b)

height

c)

average

d)

effect

14.

What is an if....then statement that predicts the outcome of an experiment or how the Independent variable effects the dependent variable?

a)

Conclusion

b)

Materials

c)

Hypothesis

d)

Problem

15.

An organized procedure to study something under controlled conditions is a(n)

a)

observation

b)

field study

c)

model

d)

experiment

16.

Students used various temperatures of water to see which one dissolved candy faster.
What was the Independent Variable?

a)

Amount of Candy

b)

Amount of Water

c)

Temperature of Water

d)

Time for Candy to Dissolve

17.

An experiment is performed 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, the independent variable is ...

a)

The type of plant

b)

The amount of sunlight

c)

The type of music

d)

The type of liquid

18.

An experiment is performed 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)

Water, apple juice, milk

c)

Plant growth

19.

Maria wants to know if birds prefer to eat in one place over another. She makes three feeders out of 2-liter bottles and paints all of them red. She fills each of the feeders with the same amount of mixed birdseed, and plans to keep the feeders out for 10 days before measuring how much seed is eaten from each feeder. She puts each of the feeders in her back yard: one feeder in a large dead tree, another feeder she sits on the dog house, and the last she sits in a small bushy tree.
What is the independent variable?

a)

Red birdfeeders

b)

Placement of birdfeeders

c)

Amount of seed

20.

What are the types of data that may be recorded in a data table

a)

qualitative

b)

quntitative

c)

both qualitative and quantitative

d)

none of the above

21.

Data that has to do with measurement, amount or numbers is

a)

just data

b)

qualitative data

c)

quantitative data

d)

hypothetical data

22.

These kind of observations are made using instruments such as rulers, balances and thermometers.

a)

qualitative

b)

quantitative

23.

The leaf is 5 mm wide.

a)

qualitative

b)

quantitative

24.

The temperature of the room is decreasing by 4 degrees Celsius.

a)

qualitative

b)

quantitative

25.

The leaves on the plant are turning brown.

a)

qualitative

b)

quantitative

c)

both

d)

neither

26.

The barn contains pigs, cows, and horses.

a)

qualitative

b)

quantitative

c)

both

d)

neither

27.

How does watching TV during studying affect a student’s test grades?

a)

independent

b)

dependent

28.

What is the effect on increasing the amount of sunlight given to tulips?

a)

independent

b)

dependent

29.

A person’s teeth will be whitened quicker if they use baking soda with their toothpaste.

a)

independent

b)

dependent

30.

Does the flavor of ice cream effect how fast the ice cream melts?

a)

independent

b)

dependent

31.

An experiment is performed 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, the independent variable is ...

a)

The type of plant

b)

The amount of sunlight

c)

The type of music

d)

The type of liquid

32.

How much water does a plant need to grow?

Which are the constant variables?

a)

The type of plant

b)

How much water you use

c)

Location of plant

d)

How much the plant grows

e)

How long you grow the plant

33.

How high can an average 6th grader jump?

Which are the constant variables?

a)

The age of the students

b)

The surface they are jumping from

c)

The height they can jump

d)

How well the students did on a math test the day before

34.

Which of the following is the best example of a hypothesis?

a)

If I use tomato juice before my shampoo, then my hair will grow faster due to the nutrients in the juice.

b)

Tomato juice is good for hair.

c)

Does tomato juice make hair grow faster?

d)

Hair will grow faster.

35.

The independent variable is the ONE thing you _____.

a)

change

b)

keep the same

c)

experiment with

d)

investigate

36.

The parts of the experiment that must be kept the same.

a)

Constants

b)

Independent variable

c)

Dependent variable

d)

Conclusion

37.

Thomas tests different types of liquids to see which will grow his plants the most. He has water, soda, milk, and no liquid at all. What is the control group?

a)

the one with water

b)

the one with soda

c)

the one with milk

d)

the one with no liquid

38.

What is an Independent Variable?

a)

It is what "I" change in the experiment.

b)

It is what is measured or observed

c)

It is something that stays the same.

39.

What is a dependent variable?

a)

It is what "I" change.

b)

It is what is measured or observed

c)

It is what stays the same.

40.

The amount of matter in an object

a)

Mass

b)

Volume

c)

Length

41.

When measuring the mass of an elephant it is best to use:

a)

g

b)

m

c)

mL

d)

kg

42.

The mass of a tape dispenser would be best measured in__________.

a)

litres

b)

kilograms

c)

grams

d)

metres

43.

What does mL measure?

a)

Length

b)

Mass

c)

Volume

44.

The parts of the experiment that must be kept the same.

a)

Constants

b)

Independent variable

c)

Dependent variable

d)

Conclusion

45.

Thomas tests different types of liquids to see which will grow his plants the most. He has water, soda, milk, and no liquid at all. What is the control group?

a)

the one with water

b)

the one with soda

c)

the one with milk

d)

the one with no liquid

46.

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

a)

Dependent

b)

Independent

c)

Control

d)

Compound

47.

You will want your experiment to have ____ independent variable(s) in it for the experiment to be valid.

a)

1

b)

2

c)

3

d)

4

48.

The purpose of the control group is:

a)

Used for comparisons

b)

Application of the I.V.

c)

Application both the I.V. and D.V.

d)

Application of all constants.

49.

Which type of graph best represents data over a set period of time?

a)

line

b)

bar

c)

table

d)

circle

50.

Which is a qualitative assessment?

a)

He is 6 feet 8 inches tall.

b)

He weighs 265 lbs.

c)

He is strong.

d)

He wears a size 13 shoe.

51.

Which of these is a quantitative assessment?

a)

He is tall

b)

Ha jumps high

c)

He wears 23

d)

He is 6 feet 8 inches tall

52.

A group of subjects who receive a baseline (zero) or placebo treatment

a)

Treatments

b)

Subjects

c)

Experiment

d)

Control Group

53.

The type of variable that responds to the experiment and is what you measure to determine if your hypothesis is true.

a)

Independent

b)

Dependent

c)

Control

d)

Constant

54.

What is the DEPENDENT variable (effect) in this experiment?

"Does eating breakfast improve test score?"

a)

eating breakfast or not

b)

the grade you got on the test

c)

what time you get up in the morning

d)

what you eat for breakfast

55.

What is the INDEPENDENT variable (cause)in this experiment?
"Which type of metal, copper or aluminum, conducts heat faster?"

a)

size of metal

b)

types of metal

c)

time it takes to heat up

d)

shape of the metal

2021 Unit 1 Biology Practice Test

Total questions: 55

Worksheet time: 2hrs 59mins

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