Free Printable Unit 1: Experimental Design

1.

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

a)

Students' ages

b)

The puzzle

c)

Time it takes students to finish the puzzle

d)

None of these

2.

Researchers gave students of different ages the same puzzle to put together. Students were timed to see how long it took them to finish the puzzle. What is the dependent variable?

a)

Students' ages

b)

The puzzle

c)

Time it takes students to finish the puzzle

d)

None of these

3.

Biology students who spend more time studying for their experimental variables quiz will have better quiz scores. What is the dependent variable?

a)

Biology students

b)

Time spent studying

c)

Quiz questions

d)

Quiz scores

4.

Biology students who spend more time studying for their experimental variables quiz will have better quiz scores. What is the independent variable?

a)

Biology students

b)

Time spent studying

c)

Quiz questions

d)

Quiz scores

5.

Steve conducts an experiment to see if fertilizer makes plants grow taller. Steve uses two identical pots and plants the same type and number of seeds in each pot, which has the same amount of soil. Steve applies fertilizer to the seeds in one pot for 8 weeks and measures the plant growth in both pots each week. What is the independent variable?

a)

Plant Height

b)

The pots

c)

Type and number of seeds

d)

Fertilizer

e)

Amount of soil

6.

Steve conducts an experiment to see if fertilizer makes plants grow taller. Steve uses two identical pots and plants the same type and number of seeds in each pot, which has the same amount of soil. Steve applies fertilizer to the seeds in one pot for 8 weeks and measures the plant growth in both pots each week. What is the dependent variable?

a)

Plant Height

b)

The pots

c)

Type and number of seeds

d)

Fertilizer

e)

Amount of soil

7.

Steve conducts an experiment to see if fertilizer makes plants grow taller. Steve uses two identical pots and plants the same type and number of seeds in each pot, which has the same amount of soil. Steve applies fertilizer to the seeds in one pot for 8 weeks and measures the plant growth in both pots each week. What is the control variables?

a)

Plant Height

b)

The pots

c)

Type and number of seeds

d)

Fertilizer

e)

Amount of soil

8.

Sam wanted to see if chocolate chip cookies would be harder when baked at a higher temperature in the oven. What is the independent variable.

a)

Hardness of cookie

b)

Type of oven

c)

Temperature of oven

d)

Chocolate chip cookies

9.

The part of an experiment that scientists observe and measure.

a)

Control variables

b)

Dependent variable

c)

Independent variable

d)

None of the these

10.

A scientist is testing which ice cream flavor melts the fastest. What would be the control variables? (choose ALL that apply)

a)

Flavor of ice cream

b)

Type of cone

c)

Location of the ice cream

d)

Size of the ice cream scoops

e)

Time it takes the ice cream to melt

11.

A scientist is testing which ice cream flavor melts the fastest. What would be the independent variables? (choose ALL that apply)

a)

Flavor of ice cream

b)

Type of cone

c)

Location of the ice cream

d)

Size of the ice cream scoops

e)

Time it takes the ice cream to melt

12.

A scientist is testing which ice cream flavor melts the fastest. What would be the dependent variables? (choose ALL that apply)

a)

Flavor of ice cream

b)

Type of cone

c)

Location of the ice cream

d)

Size of the ice cream scoops

e)

Time it takes the ice cream to melt

13.

Ms. King bounces the same tennis ball on different surfaces to observe how high the tennis ball will bounce on each surface. What is the dependent variable?

a)

The different surfaces

b)

Using the same tennis ball

c)

The height of the bounce

d)

None of these

14.

Ms. King bounces the same tennis ball on different surfaces to observe how high the tennis ball will bounce on each surface. What is the independent variable?

a)

The different surfaces

b)

Using the same tennis ball

c)

The height of the bounce

d)

None of these

15.

The independent variable is.:

a)

the result that scientists observe and measure

b)

the condition that scientists change or manipulate to test its effects

c)

a condition that remains the same

d)

The condition from which data is collected

16.

Choose ALL answers that describe the Control Group:

a)

Receives the independent variable

b)

Has the dependent variable

c)

Is used for comparison

d)

Does not receive the independent variable

17.

Choose ALL answers that describe the Experimental Group:

a)

Receives the independent variable

b)

Has the dependent variable

c)

Is used for comparison

d)

Does not receive the independent variable

18.

The "normal" or "typical" that does NOT receive the variable being tested:

a)

Independent Variable

b)

Control Group

c)

Controlled Variable

d)

Dependent Variable

e)

Experimental Group

19.

An investigation is done to determine the effect of exercise on the rate at which a person can squeeze a clothespin. In this investigation, the exercise is the...

a)

control variable

b)

dependent variable

c)

independent variable

d)

Control Group

20.

A __________ is a possible explanation to an observation or problem that has not yet been tested.

a)

variable

b)

theory

c)

hypothesis

d)

fact

21.

Which answer is NOT true of a good hypothesis.

a)

It must be testable.

b)

It usually is written as an if/then statement.

c)

It usually is written as an if/then question.

d)

It is formed from a question.

22.

Where is data from the independent variable plotted on a graph?

a)

Z axis

b)

Y axis

c)

X axis

d)

None of these

23.

Where is data from the dependent variable plotted on a graph?

a)

Z axis

b)

Y axis

c)

X axis

d)

None of these

24.

A cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed at 2 years. What is the independent variable?

a)

The use of growth hormone

b)

The weight of the cows

c)

The age of the cows

d)

Time

25.

For an experiment to be valid, you should have ____ independent variable(s).

a)

1

b)

2

c)

3

d)

4

26.

In this graph, what is the dependent variable?

a)

Walla Walla Island

b)

Time

c)

Number of Deer

27.

Information about the dependent variable is found on the _______ of a data table.

a)

left side

b)

top

c)

right side

d)

bottom

28.

The parts of an experiment in which all conditions are kept the same are the:

a)

hypothesis

b)

control variables

c)

conclusion

d)

independent variable

29.

The SI/metric system base unit for mass is:

a)

meter

b)

kilogram

c)

liter

d)

gram

e)

milligram

30.

The SI/metric system base unit for volume is:

a)

gram

b)

liter

c)

milliliter

d)

meter

e)

kilometer

31.

The SI/metric system base unit for length or distance is:

a)

gram

b)

centigram

c)

liter

d)

meter

e)

kilometer

32.

What is the volume in this graduated cylinder?

a)

43.0 mL

b)

42.0 mL

c)

44.0 mL

d)

40.3 mL

e)

43.5 mL

33.

The metric prefix kilo- means

a)

A. 1000

b)

B. 100

c)

C. 0.001 or 1/1000

d)

D. 0.01 or 1/100

34.

The metric prefix centi- means

a)

A. 1000

b)

B. 100

c)

C. 0.001 or 1/1000

d)

D. 0.01 or 1/100

35.

What would be the best unit of measurement to measure the length of a toothbrush?

a)

millimeters

b)

meters

c)

centimeters

d)

kilometers

36.

What would be the best unit of measurement to measure the volume of liquid in a coffee mug?

a)

millimeters

b)

decimeters

c)

liters

d)

milliliters

e)

grams

Unit 1: Experimental Design

Total questions: 36

Worksheet time: 28mins

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