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PEC Science Chapter 1

Total questions: 45

Worksheet time: 28mins

Name
Class
Date
1.

What is the first step in the scientific method?

a)

Research

b)

State the problem

c)

Construct a Hypothesis

d)

Do an Experiment

2.

What is the basic unit of mass in the metric system?

a)

Meter

b)

Pound

c)

Liter

d)

Gram

3.

Which variable is manipulated in an experiment?

a)

Independent variable

b)

Constant

c)

Dependent variable

d)

Control variable

4.

What is the SI unit of length?

a)

Liter

b)

Meter

c)

Gram

d)

Kilogram

5.

What is the process called when other scientists evaluate your experiment?

a)

Theory

b)

Bias

c)

Peer review

d)

Hypothesis

6.

What is the temperature at which water freezes on the Celsius scale?

a)

100 degrees

b)

0 degrees

c)

32 degrees

d)

273 degrees

7.

What is the term for a factor that changes in an experiment?

a)

Constant

b)

Bias

c)

Control

d)

Variable

8.

What is the basic unit of volume in the metric system?

a)

Pound

b)

Gram

c)

Meter

d)

Liter

9.

What is the term for an educated guess in the scientific method?

a)

Theory

b)

Hypothesis

c)

Conclusion

d)

Experiment

10.

What is the unit for measuring the volume of a solid?

a)

Liters

b)

Meters

c)

Grams

d)

Cubic centimeters (cm3)

11.

What is the term for anything that has mass and takes up space?

a)

Matter

b)

Energy

c)

Force

d)

Density

12.

What is the term for a variable that stays the same in both the experimental and control groups?

a)

Dependent variable

b)

Constant

c)

Independent variable

d)

Control

13.

What is the English unit for weight?

a)

Liter

b)

Kilogram

c)

Pound

d)

Gram

14.

What is the term for a representation of an object or event that can be studied to understand the real object or event?

a)

Experiment

b)

Hypothesis

c)

Theory

d)

Scientific model

15.

What is the SI prefix meaning 0.001?

a)

Kilo-

b)

Milli-

c)

Centi-

d)

Deci-

16.
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)
Constant
17.

What is a hypothesis?

a)

an educated guess stating what you believe will be the result of your experiement

b)

a random guess

c)

a statement of the outcome of your experiment

d)

step by step directions for your experiment

18.
According to the diagram, which question is being tested?
a)
Do plants grow taller when watered with salt water?
b)
How much fertilizer do plants need?
c)
Does fertilizer make plants grow taller?
d)
What is the best fertilizer to use?
19.

A cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed after 2 years. Identify the control.

a)

The cow given the growth hormone.

b)

The cow NOT given the growth hormone.

c)

The cow that weighs the most.

d)

Both cows

20.

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. What should be kept constant? 

a)

type of plant, flower pot,  soil, and amount of sunlight

b)

water, apple juice, milk

c)

only the amount of sunlight

d)

type of plant only

21.

A study was done to determine to figure out if HOW LONG YOU SLEEP affects your TEST SCORE. The INDEPENDENT variable is...

a)

test scores

b)

place you sleep

c)

hours of sleep

22.

Which of the following is an example of a dependent variable in an experiment?

a)

The number of plants in the experiment

b)

The type of soil used

c)

The amount of sunlight provided

d)

The height a plant grows after being given different types of soil

23.

What is the main purpose of a control group in a scientific experiment?

a)

To change the outcome of the experiment

b)

To provide a standard for comparison

c)

To increase the number of trials

d)

To test multiple variables at once

24.

Which step comes immediately after forming a hypothesis in the scientific method?

a)

Analyze data

b)

Draw a conclusion

c)

Conduct an experiment

d)

State the problem

25.
A student conducted an experiment about the movement of a marble through four different liquid substances. Looking at the figure designed by the student, what is an error in his experiment?
a)
The amount of liquid substances used is not consistent.
b)
The type of liquid substances are not labeled correctly.
c)
The type of marble used is not consistent.
d)
The marbles are not dropped from the same distance.
26.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
27.
What is the appropriate unit of measurement for the height of an apple?
a)
L
b)
cm
c)
m
d)
mm
28.
What is the volume of the screw?
a)
10 mL
b)
13 mL
c)
16 mL
d)
3 mL
29.
What is the volume of the nail?
a)
15 mL
b)
16 mL
c)
1 mL
d)
2 mL
30.
Used to measure length and distance in the metric system
a)
Graduated cylinder
b)
Triple beam balance
c)
Thermometer
d)
Meter stick
31.
The base unit for mass is the
a)
Meter
b)
Gram
c)
Metric
d)
Liter
32.
Which unit is the largest? 
a)
m 
b)
km
c)
cm
d)
dm
33.

1 kg = ______ grams

a)

10

b)

100

c)

1000

d)

1000000

34.
Which unit is the smallest?  
a)
km
b)
hm
c)
m
d)
mm
35.

Which is larger, 50 kilograms or 5000 grams?

a)

they are the same

b)

50 kilograms

c)

5000 grams

36.

201 mm = _________ cm

a)

201

b)

20.1

c)

2010

d)

0.201

37.

34 mg = _________ g

a)

340

b)

34000

c)

0.034

d)

0.0034

38.

760 hectograms = ______ centigrams

a)

7600000

b)

0.076

c)

76

d)

7600

39.

44 L = ____________ ml

a)

44000

b)

0.0044

c)

440

d)

400

40.
The base unit of metric length.
a)
Meter
b)
Liter 
c)
Kilogram
d)
milligram
41.

What metric unit is used for volume?

a)

Gram

b)

Meter

c)

Liter

42.

The basic unit of length in the metric system is the

a)

cm

b)

meter

c)

inch

43.

Convert the following: 93 Kg to _____ g

a)

0.093 g

b)

930 g

c)

93000 g

d)

0.93 g

44.

What is the length of the line in centimeters?

a)

28 cm

b)

2.8 cm

c)

2.8 mm

d)

28 mm

45.

3 km = ___________ mm

a)

30

b)

300

c)

3,000

d)

3,000,000

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