Free Printable Types of Experiments

1.

Squidward found new reeds to tryout for his clarinet. He used an APPLAUSOMETER to measure applause after playing Under the Sea with each reed. The results were put in the table.
What was the dependent variable?

a)

The Song

b)

The Reed

c)

The Applause

2.

This variable in an experiment is the one being deliberately changed by the scientist.

a)

dependent variable

b)

independent variable

c)

data

d)

control group

3.

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.

a)

experimental group

b)

control group

c)

data

d)

variables

4.

What step does every scientific experiment begin with?

a)

hypothesis

b)

question/problem

c)

procedures

d)

conclusion

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.

The summary at the end of an experiment that explains the results.

a)

conclusion

b)

procedures

c)

materials

d)

responding variable

7.

Testing a hypothesis often involves a(n):

a)

answer

b)

experiment

c)

problem

d)

safety check

8.

A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?

a)

heart rate

b)

type of exercise

c)

amount of exercise

d)

time of day exercise occurs

9.

Observations made during an experiment are called:

a)

data

b)

problems

c)

conclusions

d)

questions

10.

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 are the controlled variables?

a)

Type of plant, amount of music, and sunlight

b)

Water, apple juice, milk

c)

Plant growth

11.

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

12.

Squidward found new reeds to tryout for his clarinet. He used an APPLAUSOMETER to measure applause after playing Under the Sea with each reed. The results were put in the table.
What was controlled?

a)

The Song

b)

The Reed

c)

The Applause

13.

Squidward found new reeds to tryout for his clarinet. He used an APPLAUSOMETER to measure applause after playing Under the Sea with each reed. The results were put in the table.
What was the independent variable?

a)

The Song

b)

The Reed

c)

The Applause

14.

There are two types of data. Which type of data involves descriptions that cannot be counted or measured?

a)

qualitative

b)

quantitative

15.

There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?

a)

quantitative

b)

qualitative

16.

Should experiments be repeated over and over to see if the results are the same each time?

a)

yes

b)

no

17.

This variable in an experiment is the one being deliberately changed by the scientist.

a)

dependent variable

b)

independent variable

c)

data

d)

control group

18.

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.

a)

experimental group

b)

control group

c)

data

d)

variables

19.

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

20.

A student wants to test how different amounts of UV light affect the growth of the bacteria, Staphylococcus aureus. She wants to grow the bacteria in petri dishes for her experiment. Which of the following variables should NOT be held constant in this experiment?

a)

amount of UV light bacteria is exposed to

b)

amount of time to grow bacteria

c)

location of petri dishes while growing bacteria

d)

type of bacteria (Staphylococcus aureus)

21.

A student performed an experiment that tested how many days it takes different types of grass seed to grow to a height of two inches. Four types of grass seed were tested, and the student recorded the number of days for each type to grow. Use this information to answer the next question.

What should be held constant in this experiment?

a)

amount of sunlight, amount of water, and type of soil

b)

amount of sunlight

c)

amount of water and type of soil

d)

amount of water

22.

A student is studying the effect of sunlight on plants. The student developed this hypothesis: Plants need light to make food and to grow properly. To conduct a controlled experiment, which method should she use?

a)

Choose two identical plants; put one in the dark and one near sunlight; use the same amount of water; water both regularly

b)

Choose a healthy plant; put it in a dark place; use clean water; water the plant regularly.

c)

Choose two identical plants; put each in the dark for 12 hours and then light for 12 hours; use the same amount of water; water both regularly.

d)

Choose three identical plants; put one in the dark, one near sunlight, and one in the shade, water only the plant in light.

23.

What is the independent variable in the following hypothesis?

HYPOTHESIS: If I spend more time studying, then my grades in science will improve.

a)

Time spent studying

b)

Improvement in grades

c)

Playing soft music in the background

d)

Location for studying science

24.

Ellin is conducting a scientific investigation in which she measures a certain type of plant's growth in response to different amounts of fertilizer. What is the independent variable?

a)

Amount of fertilizer

b)

Plant growth

c)

Type of plant

d)

Temperature of the fertilizer

25.

Adam conducted a science experiment on the effect of different environments on plant growth. He put one plant in the closet and the other plant in the window at his house. He measured the growth of each plant weekly for six weeks. He then created a graph after he reviewed his data. What is the dependent variable of Adam's experiment?

a)

Total Growth of Plant

b)

Plant Environment

c)

The Effect of Different Environments

d)

Measurement over Six Weeks

26.

A student performed an experiment that tested how many days it takes different types of grass seed to grow to a height of two inches. Four types of grass seed were tested, and the student recorded the number of days for each type to grow.

What is the independent variable in this experiment?

a)

type of grass seed

b)

two inches

c)

number of days

d)

sunlight

27.

A student is investigating how compost can increase the size of vegetables grown in the garden. To test this, two separate gardens will be grown that are almost identical. The only difference will be that one plot will use regular soil and the other will use compost enriched soil. What is the dependent variable in this investigation?

a)

compost enriched soil

b)

quality and size of vegetables

c)

two garden plots

d)

water supply

28.

What is the independent variable in the following hypothesis?

"If the salinity of freshwater is increased, then the growth rate of harmful algae decreases."

a)

salinity of freshwater

b)

decreases

c)

algae

d)

growth rate

29.

Identify the independent variable in the following hypothesis. "If the amount of rainfall increases, then the occurrence of plant disease decreases."

a)

rainfall

b)

disease

c)

decrease

d)

plants

30.

Students are testing the James River for dissolved-oxygen levels. They test in the Blue Ridge Mountains, at the river's source, and in Richmond Virginia, a highly populated area. What is the independent variable in this experiment?

a)

the location of the test sights

b)

the time of year for gathering samples

c)

the method for testing dissolved oxygen

d)

the time of day for gathering samples

31.

John and Emily were experimenting with the effects of road salt on plant growth. To do this, they watered plants daily with the same amount of salt water. They could BEST improve their experiment by ___.

a)

watering half the plants with pure water and half with salt water

b)

adding food color to see how far the salt penetrates the plants

c)

cooling the salt water before watering the plants

d)

increasing the amount of salt added to the water each day

32.

Ellin is conducting a scientific investigation in which she measures a certain type of plant's growth in response to different amounts of fertilizer. What is the dependent variable?

a)

Plant growth

b)

Amount of fertilizer

c)

Type of plants

d)

Temperature of the fertilizer

33.

James is conducting an experiment to test the effect of insecticides on frogs. What is the control group in his experiment?

a)

The frogs that were NOT exposed to the insecticides.

b)

The frogs that were exposed to 15 mL of insecticide.

c)

The frogs that were exposed to 30 mL of insecticide.

d)

The frogs that did not survive the experiment.

34.

Jackie performs an experiment on how the type of music played in a room can affect plant growth. In her experiment, the independent variable is the ___.

a)

type of music

b)

height of plant

c)

type of plant

d)

color of flower

35.

Alicia is testing the effectiveness of different brands of antibacterial hand sanitizers. What is the independent variable in Alicia's experiment?

a)

The different brands of hand sanitizers

b)

The amount of hand sanitizer used

c)

The amount of time the sanitizer is left on the hands

d)

The time of day the experiment is conducted

36.

Jeremiah is measuring the growth of two indoor plants. He wants to find out if there is a difference in plant growth based on the amount of sunlight that each plant receives. All of the following are variables in this experiment EXCEPT ___.

a)

color of pot

b)

growth

c)

sunlight

d)

plants

37.

Glenda is designing an experiment for her science fair project on the amount of water that will grow the tallest plant. She wants to find out which amount of water will grow the tallest plant - 100mL, 200mL, or 300mL per week. What is the independent variable in this experiment?

a)

Amount of water

b)

Type of plant

c)

Plant height

d)

Color of the pot

38.

A student is conducting an experiment on the movement of a marble through five different substances. The student knows that is takes an average of 0.9 seconds for a marble to move through 80 mL of water. What is the control in the experiment?

a)

Water

b)

Corn Syrup

c)

Milk

d)

Olive Oil

39.

Students are growing plants in the dark or in the light to see which grows better. They put 3 seeds in the dark and 5 seeds in the light because they know seeds are more likely to dry out in the light.
How could this experiment be improved?

a)

Put all plants in the light.

b)

Put all plants in the dark (where they sprout better)

c)

Put the same number of seeds in each container.

d)

put all the plants in the light so they grow better

40.

If you were testing how well different dish soap cleaned grease, the independent (experimental) variable would be the:

a)

Dishes

b)

Water

c)

Dish Soap

d)

Types of Grease

41.

"If the forest is clear-cut (cutting down all the trees in an area of forest), then it will result in drier soils because there will not be any trees to protect the soil from sunlight" is an example of:

a)

a theory

b)

a hypothesis

c)

an experimental question

d)

a conclusion

42.

Students put two plants in the sun. Plant A is in the sun for 10 minutes. Plant B is in the sun for 1 hr. Students decide that plant B is better at photosynthesis. This is wrong because...

a)

They didn't control all variables

b)

The independent variable was sunlight

c)

The dependent variable was amount of gas produced

d)

they used different amounts of water

43.

Three baseball players investigate to see who can throw a baseball the farthest. They mark off an area on the playground for their investigation. Which should they keep constant?

a)

height of the players

b)

color of the balls thrown

c)

order in which the players throw

d)

spot from which the players throw

44.

A restaurant chef conducts an experiment in which several small potatoes of the same size are boiled for various amounts of time from 1 minute up to 15 minutes. Which of the following statements could be an aim of the experiment?

a)

The best time to cook a potato is ten minutes.

b)

After boiling for two minutes, a potato is still too hard to eat.

c)

To determine the time taken to perfectly cook a potato.

d)

Place a potato in a saucepan and cover with water.

45.

Which of the following measurements is correct for the volume of liquid in the measuring cylinder?

a)

34 mL

b)

35 mL

c)

36 mL

d)

There is not enough information to decide.

46.

Evan ran a series of experiments testing how high different balls bounced. Which of the following is not a good conclusion for his experiments?

a)

Balls bounced higher on concrete than on grass.

b)

Tennis balls bounced higher than squash balls.

c)

Balls bounce higher when dropped from greater heights.

d)

The experiment was lots of fun and I learnt a lot about balls.

47.

Maddie measured how far an elastic band stretched when 50g masses (metal weights) were hung from it. Which of the following is the variable that she is changing (the independent variable)?

a)

How far an elastic band stretches.

b)

The brand of elastic band.

c)

The number of masses hung from the elastic band

d)

The thickness of the elastic band.

48.

Joe noticed that when he washed dishes he sometimes made lots of froth and at other times made almost none. He designed an experiment where he put 1 drop of detergent in the sink and turned the tap on high until the sink was half full. He then repeated the experiment with 2 drops of detergent, then 3 then 4. Identify his dependent variable.

a)

the amount of bubbles

b)

the number of drops of detergent

c)

the brand of the detergent

d)

the temperature of the water

Types of Experiments

Total questions: 48

Worksheet time: 1hrs 21mins

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