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Unit 0 Intro and Math Review Questions Complete

Total questions: 146

Worksheet time: 4hrs 53mins

Name
Class
Date
1.

What is the primary focus of Unit 0, Lesson 1 in the learning material?

a)

Theories of Evolution

b)

The Methods of Science

c)

Chemical Reactions

d)

Historical Discoveries

2.

What does science aim to discover?

a)

Nature's 'rules' about how things work

b)

Supernatural phenomena

c)

Fictional stories

d)

Historical myths

3.

Life science includes the study of which of the following?

a)

Chemistry

b)

Physics

c)

Botany

d)

Geology

4.

Which branch of science is concerned with volcanoes?

a)

Life science

b)

Earth science

c)

Physical science

d)

Social science

5.

In the scientific method, what question might you ask when gathering information?

a)

What is the hypothesis?

b)

Has someone already investigated this?

c)

What is the conclusion?

d)

How do I conduct the experiment?

6.

What is an independent variable in an experiment?

a)

What you measure

b)

What you change on purpose

c)

A constant factor

d)

The result of the experiment.

7.

What is a dependent variable in an experiment?

a)

What you change on purpose

b)

A constant factor

c)

What you measure

d)

The control.

8.

In an experiment to test the effect of fertilizer, what would be the independent variable?

a)

The amount of water

b)

The type of plant

c)

The amount of fertilizer

d)

The growth of the plant.

9.

Why is a control used in an experiment?

a)

To change the outcome

b)

To measure the dependent variable

c)

To compare results

d)

To alter the independent variable.

10.

What is the role of the independent variable in an experiment?

a)

It is the variable that is measured.

b)

It is the variable that is changed.

c)

It is the variable that remains constant.

d)

It is the variable that is dependent.

11.

In the statement 'The effect of sunlight on plant growth,' which is the dependent variable?

a)

Sunlight

b)

Plant growth

c)

Soil type

d)

Water amount

12.

Which statement is true about the independent variable?

a)

It is always the same as the dependent variable.

b)

It is the variable that is manipulated.

c)

It is the variable that is measured.

d)

It is the variable that is kept constant.

13.

What is the purpose of organizing data into charts or graphs?

a)

To make it look colorful

b)

To make it readable by others

c)

To hide the data

d)

To confuse the reader.

14.

What is the definition of technology?

a)

The application of science to help people

b)

A type of computer

c)

A form of art

d)

A natural phenomenon.

15.

Technology is often thought of as things like computers, but it also includes things like: A) Velcro B) Water C) Air D) Soil.

a)

Velcro

b)

Water

c)

Air

d)

Soil

16.

Life science deals with which of these categories?

a)

history

b)

art

c)

biology

d)

chemistry

17.

which of the following is NOT part of the three major categories of science

a)

biology

b)

chemistry

c)

physics

d)

dance

18.

Does you experiment have to be repeatable?

a)

yes

b)

no

19.

what is an independent variable?

a)

the variable that is changed to test the effect on the dependent variable

b)

a factor that does not change

c)

the variable that changes

d)

something that doesnt change

20.

what is an example of a control?

a)

something that is a standard by which the test results can be compared

b)

a change

c)

something that depends on something else

d)

none of the above

21.

Is a hypothesis a scientific theory?

a)

Yes

b)

NO

22.

what is a scientific law?

a)

a guess

b)

hypothesis

c)

an explanation of things or events based on knowledge gained from many observations and investigations

d)

a statement about what happens in nature and that seems to be true all the time

23.

What is the independent variable in the following scenario?

"The blood pressure of a soldier is measured while he is resting. The soldier is then exposed to a stressful environment and his blood pressure is measured again."

a)

the environment

b)

the soldier

c)

blood pressure

d)

none of the above

24.

What is the dependent variable in the following scenario?

"The blood pressure of a soldier is measured while he is resting. The soldier is then exposed to a stressful environment and his blood pressure is measured again."

a)

the environment

b)

the soldier

c)

blood pressure

d)

none of the above

25.

Which of the following statements about hypotheses is true?

a)

Hypotheses can never be changed.

b)

Hypotheses are always proven to be true.

c)

Hypotheses can be accepted or rejected.

d)

Hypotheses can be proven true without evidence.

26.

The information gathered from making observations is called ____.

a)
data
b)

experiment

c)

graph

d)

procedure

27.

What is a possible answer or explanation to a question based on knowledge, observations, and research?

HINT: It is often written in "if...then" format.

a)

Observation

b)

Hypothesis

c)

Experiment

d)

Conclusion

28.

A group of people decide to find out if eating apples reduces the number of colds a person will catch. What is the dependent variable?

a)

The number of apples the test subjects eat

b)

The number of colds the test subjects catch

c)

The subjects who do NOT eat apples

d)

The average age of the test subjects

29.

A group of people decide to find out if eating apples reduces the number of colds a person will catch. What is the independent variable?

a)

The number of apples the test subjects eat

b)

The number of colds the test subjects catch

c)

The subjects who do NOT eat apples

d)

The average age of the test subjects

30.

Expresses any number as a number between 1 and 10 (known as a coefficient) multiplied by 10 raised to a power (known as an exponent). Makes it easier to write large or small quantities.

a)

metric system

b)

scientific notation

c)

standard notation

d)

dimensional analysis

31.

How would you write 7.6 x 10-4 in standard form

a)

76000

b)

760000

c)

0.00076

d)

7.6

32.

Express the following in Scientific notation:

57800

a)

5.78 x 104

b)

57.8 x 105

c)

5.78 x 105

d)

578

33.

The average distance from Earth to the Moon is 384,400 km (238,900 miles). In Scientific Notation this is represented as:

a)

384.4 x 103 km

b)

38.44 x 104 km

c)

3.844 x 105 km

d)

All of the above.

34.

How do you write 567.8 in scientific notation?

a)

5.678 X 10210^2  

b)

5.678 X 10−210^{-2}  

c)

5678 10−110^{-1}  X

d)

5678 X 10110^1  

35.

How do you write 0.0034 in scientific notation?

a)

34 X 10−410^{-4}  

b)

34 X 10410^4  

c)

3.4 X 10−310^{-3}  

d)

3.4 X 10310^3  

36.
The table shows the mass in grams of one atom of each of several elements. List the elements in order from the least mass to greatest mass per atom.
a)
hydrogen, carbon, oxygen, silver, gold
b)
hydrogen, oxygen, gold, siver, carbon
c)
carbon, oxygen, silver, gold, hydrogen
d)
gold, oxygen, carbon, silver, hydrogen
37.

Write 3450. meters in scientific notation

a)

3.45 x 103 meters

b)

34.5 x 102 meters

c)

345 x 101 meters

d)

0.345 x 104

38.

What is 0.00534 millimeters written in scientific notation?

a)

0.534 x 10-3 millimeters

b)

5.34 x 10-3 millimeters

c)

53.4 x 10-4 millimeters

d)

534 x 10-5 millimeters

39.

What is 0.00534 millimeters written in scientific notation?

a)

0.534 x 10-3 millimeters

b)

5.34 x 10-3 millimeters

c)

53.4 x 10-4 millimeters

d)

534 x 10-5 millimeters

40.

1.24 centimeters written in scientific notation will become

a)

1.24 x 100 centimeters

b)

1.24 x 101 centimeters

c)

0.124 x 101 centimeters

d)

124 x 102 centimeters

41.
How would you write 564,000,000 in scientific notation?
a)
5.64 x 10-7
b)
5.64 x 106
c)
5.64 x 108
d)
56.4 x 107
42.

When you move the decimal point to the LEFT, the exponent _________________________

a)

goes up

b)

goes down

c)

stays the same

43.

When you move the decimal point to the RIGHT, the exponent

a)

goes down

b)

goes up

c)

stays the same

44.
Which of the following in the LARGEST number?
a)
9 x 106
b)
8 x 1010
c)
1.3 x 1012
d)
5.3 x 103
45.
Which of the following numbers is the SMALLEST?
a)
8.7 x 103
b)
3 x 104
c)
1.3 x 108
d)
9 x 102
46.

When multiplying two numbers in scientific notation, what do you do with the exponents?

a)

Add them

b)

Subtract them

c)

Multiply them

d)

Leave them alone

47.

When subtracting two numbers in scientific notation, what do you do with the exponent?

a)

Leave them alone

b)

Leave them alone (But only if they match)

c)

Subtract them

d)

Add them

48.

When dividing two numbers in scientific notation, what do you do with the exponents?

a)

Add them

b)

Subtract them

c)

Multiply them

d)

Leave them alone

49.

Complete the operation:


(6 x 10^5) X (1 x 10^10)

a)

7 x 10^15

b)

6 x 10^-5

c)

6 x 10^15

d)

6 x 10^50

50.

Complete the operation:


(4 x 10^3) + (8 x 10^3)

a)

1.2 x 10^4

b)

1.2 x 10^3

c)

12 x 10^3

d)

12 x 10^4

51.

Complete the operation:


(8 x 10^-3) / (4 x 10^-8)

a)

2 x 10^-11

b)

2 x 10^-5

c)

2 x 10^5

d)

2 x 10^11

52.

Simplify:

105⋅10710^5\cdot10^7  

a)

103510^{35}  

b)

  10012100^{12}  

c)

101210^{12}  

d)

None of the above

53.

Simplify:

(6x2)(−3x5)\left(6x^2\right)\left(-3x^5\right)  

a)

  18x718x^7  

b)

  −18x7-18x^7  

c)

3x73x^7  

d)

None of the above

54.
(3xy)2
a)
9x2y2
b)
6x2y2
c)
3xy2
d)
3x2y2
55.

What is a 'standard' in the context of measurements?

a)

A random guess

b)

An exact quantity agreed upon for comparison

c)

A personal opinion

d)

A flexible guideline

56.

What is a 'pace' in historical measurement terms?

a)

The length of a person's arm

b)

The length of a person's step

c)

The width of a person's hand

d)

The height of a person's knee.

57.

What is the main problem with using body parts as measuring devices?

a)

They are not standardized

b)

They are too expensive

c)

They are too heavy

d)

They are too small

58.

What unit would you use for buying potatoes?

a)

pound

b)

miles

c)

foot

d)

yard

e)

gallon

59.

Which of the following is a unit of volume in the English system?

a)

gallon

b)

pound

c)

foot

d)

yard

60.

Match the following metric system units: A 2 ______ bottle of soda.

a)

gram

b)

liter

c)

meter

61.

Match the following metric system units: A ________ stick.

a)

gram

b)

liter

c)

meter

62.

Which of the following is a unit of length in the SI system?

a)

Inch

b)

Meter

c)

Foot

d)

Yard

63.

Which of the following is a unit of length in the SI system?

a)

Centimeter

b)

Inch

c)

Foot

d)

Yard

64.

How many centimeters are there in one meter?

a)

10

b)

50

c)

100

d)

1000

65.

What do the large numbers on the meter stick represent?

a)

Millimeters

b)

Centimeters

c)

Meters

d)

Inches

66.

Which of the following is a characteristic of the metric system?

a)

Base 2

b)

Base 5

c)

Base 10

d)

Base 12

67.

What is the relationship between millimeters and centimeters?

a)

1 mm = 10 cm

b)

10 mm = 1 cm

c)

100 mm = 1 cm

d)

1000 mm = 1 cm

68.

How many millimeters are there in 1 centimeter?

a)

10 mm

b)

100 mm

c)

1 mm

d)

1000 mm

69.

What does weight measure?

a)

Mass + gravity

b)

Volume + density

c)

Energy + force

d)

Length + width

70.

What is a "cc"?

Select all that are correct

a)

an ounce

b)

a cubic centimeter

c)

a mL

d)

a common curreny

71.
What is the measurement using the correct number of sig. figs.?
a)
39.5 mL
b)
40 mL
c)
39 mL
d)
40.0 mL
72.
What is the measurement using the correct number of sig. figs.?
a)
89cm
b)
88.9cm
c)
88.90cm
d)
88cm
73.
If the beams are balanced with the riders in the positions shown, what is the total mass of the object?
a)
545.2g
b)
540.52g
c)
540.2g
d)
545.20g
74.

1 cup = 16 Tbsp

1 Tbsp = 3 tsp

1 mL = 0.2 tsp


How many mL are in 1.0 cup?

a)

240 mL

b)

9.6 mL

c)

1.1 mL

d)

27 mL

75.

According to the image, what does every measurement have?

a)

Exactness

b)

Some degree of uncertainty

c)

No error

d)

Absolute precision

76.

In the image, what is being measured?

a)

A piece of wood

b)

A nail

c)

A screw

d)

A bolt

77.

What is the approximate length of the nail as shown in the image?

a)

2.5 cm

b)

3.0 cm

c)

2.8 cm

d)

3.5 cm

78.

Why is there a red dashed line in the image?

a)

To indicate the start of the measurement

b)

To show the end of the nail

c)

To highlight the measurement uncertainty

d)

To mark the ruler's zero point.

79.

What are significant figures in a measurement?

a)

A) All certain numbers plus the first estimated number

b)

B) Only the estimated numbers

c)

C) Only the certain numbers

d)

D) None of the above.

80.

Which of the following is true about precision and accuracy?

a)

Measurements can be precise but not accurate

b)

Measurements can be accurate but not precise

c)

Both A and B

d)

Neither A nor B

81.

What is an example of precision in measurement?

a)

A) Grouping darts closely together

b)

B) Hitting the bull's-eye on a dart board

c)

C) Counting significant figures

d)

D) None of the above.

82.

Which side is associated with the presence of a decimal point in the rules for counting significant figures?

a)

Pacific

b)

Atlantic

c)

Both

d)

Neither

83.

According to the simple method, if a period (decimal) is absent, which side should you come from?

a)

Pacific

b)

Atlantic

c)

Both

d)

Neither

84.

How many significant figures are in the number 100.?

a)

A) 1

b)

B) 2

c)

C) 3

d)

D) 4

85.

How many significant figures are in the number 100.80?

a)

3

b)

4

c)

5

d)

6

86.

What is the rule for counting leading zeros in significant figures?

a)

Always count

b)

Never count

c)

Count only if there's a decimal point

d)

Count if followed by a non-zero digit.

87.

How many significant figures are in the number 100?

a)

A) 1

b)

B) 2

c)

C) 3

d)

D) 4

88.

In the number 1.008, which zeros are considered captive zeros?

a)

A) The first zero

b)

B) The last zero

c)

C) All zeros

d)

D) None

89.

0.0097 has how many sig figs?

a)

2

b)

3

c)

4

d)

5

90.

How many sig figs are in 1010?

a)

1

b)

2

c)

3

d)

4

91.

Identify the number of sig figs in 0.0810

a)

2

b)

3

c)

4

d)

5

92.

12.03 + 43.5 = ?

Express your answer to the correct place value.

a)

55.530

b)

55.53

c)

55.5

d)

56

93.

7.80÷0.091= ?7.80\div0.091=\ ?   Round your answer to the correct number of sig figs.

a)

85.71429

b)

85.71

c)

85.7

d)

86

94.
a)
Student A
b)
Student B
c)
Student C
d)
Cannot be determined
95.

Which is the more precise measurement?

a)

4 mL

b)

4.3 mL

c)

4.30 mL

d)

4.300 mL

96.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
97.
Volume?
a)
63.5 mL
b)
63 mL
c)
63.55 mL
d)
6 mL
98.
Which of the following numbers has three significant figures?
a)
1014 miles
b)
101 feet
c)
1000 yards
d)
all of the choices
99.
Calculate the answer to the following problem and round the final answer to the correct number of sig figs:
24.567 + 0.04478 =
a)
24.61178
b)
24.612
c)
24.611
d)
24.61
100.
How many sig. fig. are in the number below:
705000
a)
2
b)
3
c)
5
d)
6
101.
How many sig figs are in 0.0045670?
a)
8
b)
4
c)
5
d)
7
102.

How many significant figures should your answer have for the following multiplication problem 19.10 X 18.0 X 22

a)

2

b)

4

c)

3

d)

none

103.
How many significant figures does the following number have: 100.00210
a)
7
b)
5
c)
10
d)
8
104.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
105.
What is 0.658 rounded to 1 significant figure?
a)
0
b)
0.66
c)
0.7
d)
0.658
106.

What is the length of the object in centimeters?

a)

3.40 cm

b)

4.3 cm

c)

3.5 cm

d)

1 1/4 inches

107.
What two activities had the least amount of votes when combined?
a)
School Clubs and Chat Online
b)
Visit with Friends and Play Sports
c)
Earn Money and Watch TV
d)
Chat Online and Play Sports
108.
How many total students voted in this poll?
a)
366
b)
266
c)
356
d)
256
109.
How many total students studied for the test?
a)
70
b)
35
c)
34
d)
36
110.

The variable that is measured. It goes on the y-axis.

a)

Independent Variable

b)

Dependent Variable

111.
On a graph, which axis shows the dependent variable?
a)
x-axis
b)
y-axis
c)
neither
d)
it changes
112.
How many total students are in the science class?
a)
13
b)
6
c)
27
d)
25
113.
The x-axis shows
a)
time
b)
carbon dioxide concentration
c)
Mauna Loa volcano
d)
science
114.
This data set shows that
a)
there is more CO2 in the atmosphere now than ever before
b)
Hawaii will be most affected by global warming
c)
global temperatures are rising
d)
there is more CO2 in Hawaii than anywhere else
115.

How many push ups were done on Friday?

a)

0

b)

20

c)

5

d)

10

116.

How many more potatoes were grown in 2011 than in 2009?

a)

5

b)

10

c)

15

d)

20

117.

Which cereal received the least amount of votes?

a)

Corn Flakes

b)

Cheerios

c)

Life

d)

Kix

118.

The data table below shows that as the pressure of a gas sample was changed, the volume of the gas changed. The pressure was measured in atmospheres (atm) and the volume was measured in milliliters (mL).


According to the data table, as the pressure of the gas increases, the volume of the gas:

a)

decreases

b)

increases

c)

remains the same

119.

How many more average daily calories are needed by a 17 year old male than by a 17 year old female?

a)

300

b)

500

c)

2700

d)

3000

120.

What is the difference between the number of frogs in the pond when the rainfall was 5cm and when the rainfall was 20cm?

a)

20

b)

40

c)

50

d)

60

121.
Look at the graph.
Which is correct?
Sales of food and drink... from Monday to Friday.
a)
remain stable
b)
rise
c)
drop 
d)
fluctuate
122.
What is the name of this graph?
a)
line plot
b)
line graph
c)
bar graph
d)
frequency table
123.

What data does this graph represent?

a)

Change in temperature of a liquid over time in 3 different containers

b)

How temperature can change the molecules in a material

c)

The phase changes of a material

d)

What type of container people use the most to store hot liquids.

124.

Which type of container keeps liquid the hottest for the longest time?

a)

Bag

b)

Cooler

c)

Cooler and bag are tied

d)

Styrofoam

125.

What conclusions can you draw from this graph?

a)

The deer population went down over time.

b)

The deer population went up over time.

c)

The dear population went up quickly, then down, but then stayed the same.

d)

There are less dear because of hunters

126.

You want to make a graph for an experiment you did about plant growth over a two week period of time. What type of graph would you use?

a)

bar graph

b)

line graph

c)

pictograph

d)

pie chart

127.
What is this graph showing you?
a)
The worlds population is staying the same.
b)
The worlds population is going down (decreasing).
c)
The worlds population was growing but now is decreasing.
d)
The worlds population has been growing and will continue to grow. 
128.
The purpose of graphs, charts and tables is to
a)
help scientists visualize results from an experiment.
b)
make the experiment look nice.
c)
practice what I learned in Math class.
d)
Practice my drawing skills.
129.

What information is NOT shown in this diagram of the solar system?

a)

the names of planets

b)

the order of the planets

c)

the path the planets travel in their orbit

d)

the distance between the planets

130.

What information could you get from this graph?

a)

how much water is on Earth

b)

the percentage of the earth that is covered in water

c)

how land is available on earth

d)

how tall the highest mountain is

131.

In this graph, scientists counted how many seeds were made by a fruit depending on how the flower was pollinated. (Self pollinated, by a bee or by the farmer/manual) What is the CONTROL/constant variable?

a)

The number of seeds

b)

The type of fruit

c)

How the flower was pollinated (self, bee, manual)

132.

The MANIPULATED/Independent variable is:

a)

The item the scientist or "I" am testing in the experiment

b)

The item that is changing BECAUSE of the experiment

c)

The item(s) that have to stay the same or constant in the experiment

133.

The RESPONDING/dependent variable is:

a)

The item the scientist or "I" am testing in the experiment

b)

The item that is changing BECAUSE of the experiment

c)

The item(s) that have to stay the same or constant in the experiment

134.

A seventh grade science class has been working for two months on an intensive plant lab in the garden, experimenting with growing greens under plastic coverings and under cloth coverings to find out which material better protects plant growth in the winter. Cress is a type of edible plant. Their data is shown in this graph.


What is the X axis for this graph?

a)

Length in cm

b)

Weeks

c)

Cress Growth

d)

Plastic/Cloth

135.
At 60 seconds, how far had this object traveled? 
a)
0 m
b)
10 m
c)
20 m
d)
40 m
136.

Identify the table:

Direct, Inverse, Neither

a)

Direct

b)

Inverse

c)

Neither

137.

Identify the table:

Direct, Inverse, Or neither?

a)

Direct

b)

Inverse

c)

I don't know

138.

What type of variation does this graph represent?

a)

Direct

b)

Inverse

c)

Neither

139.

What is the difference between a line graph and a bar graph?

a)

A line graph displays data in a continuous manner, while a bar graph displays data in discrete categories.

b)

A line graph is more suitable for showing trends over time, while a bar graph is more suitable for comparing data at a specific point in time.

c)

A line graph is used to show the relationship between two variables, while a bar graph is used to compare multiple variables.

d)

A line graph shows the trend over time, while a bar graph compares different categories.

140.

What is the purpose of creating a line graph in science?

a)

To display discrete data points

b)

To visually represent the relationship between two variables over time or continuous data.

c)

To compare data from different experiments

d)

To show the distribution of data

141.

How do you choose the scale for the x-axis and y-axis on a line graph?

a)

Consider the range of values and choose a scale that accurately represents the data.

b)

Select a scale that is unrelated to the range of values.

c)

Use a scale that exaggerates the differences between data points.

d)

Choose a scale that evenly divides the range of values.

142.

What are some common mistakes to avoid when creating a line graph?

a)

Using too many colors, not using a grid, not including a legend, and not using a consistent line style.

b)

Not labeling the axes, using inconsistent scales, not including a title or key, and not plotting the data accurately.

143.

How can you use a line graph to make predictions or draw conclusions?

a)

By looking at the colors used in the graph.

b)

By analyzing the trend, direction, and slope of the line on the graph.

c)

By counting the number of data points on the graph.

d)

By measuring the length of the x-axis on the graph.

144.

Students collected trash on a beach over a one-year period and organized the data in the table below.


Which graph is best to display the data shown in the table?

a)
b)
c)
d)
145.

What is the independent variable?

a)

atomic number

b)

electron volts

c)

first ionization energy

d)

Jim Askew's Graph

146.

What is the dependent variable?

a)

nicest fruit

b)

number of people

c)

types of fruit

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