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Grade 6 Geology Unit Exam Revision

Total questions: 164

Worksheet time: 5hrs 34mins

Name
Class
Date
1.
Identify this type of rock. 
a)
igneous
b)
metamorphic
c)
sedimentary
2.
Identify this type of rock. 
a)
metamorphic 
b)
igneous
c)
sedimentary
d)
fossil
3.
Identify this type of rock. 
a)
sedimentary
b)
igneous
c)
metamorphic
d)
fossil
4.
This property can be tested using a nail, penny, or fingernail. (Example: soft)
a)
color
b)
hardness
c)
luster
d)
streak
5.
This property shows how a mineral reflects light. (Example: metallic)
a)
color
b)
hardness
c)
luster
d)
streak
6.
This property is the easiest to identify. (Examples: grey, black, white, or red)
a)
color
b)
hardness
c)
luster
d)
streak
7.
What type of rock might contain fossils? 
a)
sedimentary
b)
igneous
c)
metamorphic
8.
What type of rock has wavy layers that may be bent? 
a)
sedimentary
b)
igneous
c)
metamorphic
9.
What type of rock changes by intense heat AND pressure? 
a)
sedimentary
b)
igneous
c)
metamorphic
10.
What type of rock might contain holes from gases of quickly cooled lava? 
a)
sedimentary
b)
igneous
c)
metamorphic
11.
What type of rock has visible flat layers? 
a)
sedimentary
b)
igneous
c)
metamorphic
12.
Sometimes sediments move from one place to another and can settle in layers.  This process is called
a)
Weathering 
b)
Erosion
c)
Expansion
d)
Sedimentary layering
13.
Sediments under great heat and pressure over millions of years form this type of rock.
a)
Sedimentary
b)
Metamorphic
c)
Igneous
14.
What will happen as layers of sediment undergo great pressure for millions of years?
a)
A sedimentary rock will form.
b)
A metamorphic rock will form.
c)
An igneous rock will form.
d)
It will remain as layers of sediment.
15.
What is formed when molten rock material cools and hardens to form a solid?
a)
a sedimentary rock is formed
b)
A metamorphic rock is formed.
c)
An igneous rock is formed.
d)
Hard lava is formed.
16.
Hawaii was formed from volcanoes which means most of its land and rock is igneous rock.
a)
True
b)
False
17.
Which of the following best describes examples of erosion?
a)
Physical and chemical weathering
b)
Constant changes on the surface of the Earth
c)
Lakes and ponds
d)
Wind and moving water
18.
The process of breaking down rock is 
a)
Weathering
b)
Erosion
c)
Plucking
d)
Abrasion
19.
Hot molten rock inside the Earth can reach Earth's surface during a volcanic eruption.  The term for this melted rock is
a)
Lava 
b)
Magma
c)
Magma when it reaches Earth's surface and Lava when it is below Earth's surface
d)
Lava when it reaches Earth's surface and Magma before it reaches Earth's surface
20.
Choose the number where the following description best fits:  Hot lava cools.
a)
1
b)
3
c)
4
d)
5
21.
Choose the number where the following description best fits:  Great pressure and heat.
a)
1
b)
2
c)
3
d)
4
22.
Choose the number where the following description best fits:  Great heat from the center of the Earth causes melting.
a)
1
b)
3
c)
4
d)
5
23.
Elements or compounds that make up the mineral.
a)
Cleavage
b)
Fracture
c)
Chemical composition
d)
Hardness
24.
Composed of crystals, a solid geometric form that results from a repeating pattern.
a)
Inorganic
b)
Luster
c)
Crystalline Structure
d)
Matter 
25.
Is not living and has never been alive.
a)
Inorganic
b)
Luster
c)
Crystalline Structure
d)
Matter 
26.
Anything that has volume and mass.
a)
Inorganic
b)
Luster
c)
Crystalline Structure
d)
Matter 
27.
A rating system that compares the hardness of minerals based on their resistance to scratching.
a)
Mohs Hardness Scale
b)
Mineral
c)
Naturally Occuring
d)
Streak
28.
The sticking together of sediments caused by minerals growing around them.
a)
Deposition
b)
Erosion
c)
Sediments
d)
Cementation
29.
The movement of sediments from one location to another by wind,water,ice, or gravity.
a)
Deposition
b)
Erosion
c)
Sediments
d)
Cementation
30.
Small particles of weathered rock that is moved and deposited by wind,water,ice or gravity .
a)
Deposition
b)
Erosion
c)
Sediments
d)
Cementation
31.

_________ is a type of igneous rock that forms from the slow cooling of magma.

a)

Sedimentary

b)

Extrusive igneous

c)

Metamorphic

d)

Intrusive igneous

32.

_______________ is a type of igneous rock that is formed from the fast cooling of lava.

a)

Sedimentary

b)

Intrusive igneous

c)

Metamorphic

d)

Extrusive igneous

33.

What size are the crystals of intrusive rocks?

a)

Large

b)

Small

34.

Which rock cools the slowest 

a)

Intrusive (inside the Earths surface)

b)

Extrusive (on the Earths surface)

35.

Is Gabbro an intrusive igneous rock?

a)

Yes

b)

No

36.

What type of rock is Obsidian?

a)

Intrusive

b)

Extrusive

37.

Which state of matter is the earth's inner core?

a)

plasma

b)

liquid

c)

solid

d)

gas

38.

Which earth layer is made up of the upper mantle and the crust?

a)

core

b)

lower mantle

c)

asthenosphere

d)

lithosphere

39.

The waves of energy that travel through the earth's layers are

a)

scenic waves

b)

tidal waves

c)

cosmic waves

d)

seismic waves

40.

Which of the following could be a unit used to measure density?

a)

km/h

b)

m/s

c)

m/kg

d)

g/cm³

41.

A divergent plate boundary forms when ________.

a)

A denser plate sinks below a more buoyant plate

b)

Two plates separate

c)

When two plates collide

d)

When two plates slide past each other

42.

Which force causes plate motion?

a)

Basal drag

b)

Ridge push

c)

Slab pull

d)

All of the above

43.

The plate tectonics theory provides ________.

a)

An estimate of how quickly the continents move

b)

An explanation for the occurrence of earthquakes and volcanic eruptions

c)

A reason for an increase in Earth’s surface area

d)

Evidence of the solid, unbroken nature of Earth’s crust

44.

If a hard boiled egg was being used as a model of Earth, which part of the egg would represent the core?

a)

The membrane

b)

The shell

c)

The white

d)

The yolk

45.

What type of plate movement is represented below?

a)

Convergence and subduction

b)

Convergence and uplift(mountains)

c)

Divergence

d)

Sliding

46.

______ is the amount of mass in a material per unit volume.

a)

Gravity

b)

Pressure

c)

Density

d)

Magnetism

47.

Which of the following is the formula for Density?

a)

D = M÷V

b)

D = LW

c)

D = g/cm³

d)

D = ½

48.

Less dense materials will be on _____. More dense materials will be on _____.

a)

Top, Bottom.

b)

Bottom, Top.

c)

Top, Middle

d)

Middle, Bottom

49.

Which layer of earth is brittle, rocky, and has the least density.

a)

Mantle

b)

Asthenosphere

c)

Core

d)

Crust

50.

The three plate boundaries are ___________, ____________, and ____________.

a)

Crust, Mantle, and Core

b)

Divergent, Transform, and Convergent

c)

Volcanoes, Mountains, and Earthquakes

d)

Divergent, Transvergent, and Conform

51.

What is it called when two plates slide past each other? *San Andreas Fault*

a)

Push and Pull Ridge push and Slab pull

b)

Transform plate boundaries

c)

Convergent plate boundaries

d)

Divergent plate boundries

52.

What are the three classes of rocks?

4 lines
53.

Follow the arrow from sedimentary rock to metamorphic rock. What process is necessary to change a sedimentary rock to a metamorphic rock?

4 lines
54.

Which step of the rock cycle is shown in the oval marked D?​

a)

sediment

b)

sedimentary

c)

igneous

d)

metamorphic

e)

magma

55.

​According to this diagram, metamorphic rock is formed by​

a)

melting and solidification

b)

burial and compaction

c)

weathering and erosion

d)

heat and/or pressure

56.

According to the diagram, what forms Sedimentary Rock?

a)

crystallization

b)

melting

c)

compaction and cementation

57.

The best answer for section "B"

a)

metamorphic/melting

b)

compaction/cementation

c)

weathering/erosion

d)

heat/pressure

58.

The best answer for section "C" in the diagram

a)

metamorphic/melting

b)

compaction/cementation

c)

weathering/erosion

d)

heat/pressure

59.

The best answer for section "A" in the diagram

a)

metamorphic/melting

b)

compaction/cementation

c)

weathering/erosion

d)

heat/pressure

60.

What type of rock forms directly from Deposition, Compaction, and Cementation?

a)

Igneous Rock

b)

Sedimentary Rock

c)

Metamorphic Rock

61.

Which letter on the diagram shows sedimentary rock is broken down into sediments and transported by a stream.

a)

A

b)

B

c)

C

d)

D

62.

What is a dormant volcano?

a)

molten rock

b)

the center of a volcano

c)

will never erupt again

d)

a volcano that is sleeping, but could erupt agian

63.

What is magma?

a)

pieces of the Earth's crust

b)

molten rock inside of a volcano

c)

small rock

d)

plates that meet

64.

What is lava?

a)

Molten rocks inside a volcano

b)

Molten rock outside a volcano

c)

small rocks

d)

magma

65.
A dead volcano is called what?
a)
active
b)
dormant
c)
extinct
66.
What type of volcano is shown on the model above? 
a)
Composite Volcano
b)
Shield Volcano
c)
Cinder Cone Volcano
67.
What type of volcano is shown on the model above? 
a)
Shield Volcano
b)
Composite Volcano
c)
Cinder Cone Volcano
68.
What type of volcano is shown on the model above? 
a)
Cinder Cone Volcano
b)
Composite Volcano
c)
Shield Volcano
69.
Which of the following terms are used to describe a volcano that may erupt at any time? 
a)
Dormant volcano
b)
Active volcano
c)
Extinct volcano
d)
Shield volcano
70.

In a volcano, magma collects in a packet called ________.

a)

Magma flow

b)

Magma chamber

c)

Magma pipe

d)

Hot spot

71.

Rank the volcanic stages from LEAST likely to MOST likely to erupt.

a)

active, dormant, extinct

b)

extinct, dormant, active

c)

dormant, extinct, active

d)

dormant, active, extinct

72.
What kind of plate boundary is shown here?
a)
divergent
b)
convergent
c)
transform
d)
strike slip
73.
What kind of plate boundary is shown here?
a)
divergent
b)
convergent
c)
transform
d)
submergent
74.

What kind of plate boundary is shown here?

a)

divergent

b)

convergent

c)

transform

d)

subducting

75.
Mountains form from ...
a)
plates sliding past one another
b)
collision of plates
c)
plates moving away from each other
76.
What geologic feature/event would you most likely to find at a divergent boundary between two pieces of continental crust?
a)
Mid-Ocean Ridge
b)
Mountain
c)
Rift Valley
d)
Island Arc
77.

What is the name of the largest supercontinent that the continents today used to form?

a)

North America

b)

Antarctica

c)

Pangaea

d)

Eurasia

78.

Which layer is the coolest?

a)

crust

b)

mantle

c)

outer core

d)

inner core

79.

Which layer is the hottest?

a)

crust

b)

mantle

c)

outer core

d)

inner core

80.

Which layer of the Earth is the THINNEST?

a)

crust

b)

mantle

c)

outer core

d)

inner core

81.

Which layer of the Earth is the THICKEST?

a)

crust

b)

mantle

c)

outer core

d)

inner core

82.

Which layer is shown in red?

a)

crust

b)

mantle

c)

outer core

d)

inner core

83.

Which layer of the Earth is shown in ORANGE?

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer Core

84.

Which layer of the Earth is shown in YELLOW?

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer Core

85.

Which layer of the Earth is shown in BROWN?

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer Core

86.

Which crust is thicker

a)

oceanic

b)

continental

c)

bread

d)

pizza

87.

Alfred Wegener named his single supercontinent ____________, which means "all Earth" in ancient Greek.

a)

Pandora

b)

Gandowandaland

c)

Pangea

d)

Percia

88.

Most geologists think that the movement of Earth's tectonic plates is caused by

a)

the rotation of the Earth.

b)

the Earth's magnetic field.

c)

subduction.

d)

convection currents.

89.

Which layer of Earth flows slowly and causes the crust to move?

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

90.

What event happens when there is a sudden, violent shaking of tectonic plates?

a)

earthquake

b)

volcano

c)

thunderstorm

91.

When scientists map the location of earthquakes, where do they find that most earthquakes happen?

a)

middle of tectonic plates

b)

in the core of the earth

c)

only near mountains

d)

at plate boundaries

92.

Why aren't all earthquakes recorded?

a)

happen too far underground

b)

happen too often

c)

too weak to be felt

d)

happen under the mantle

93.

What gets released when plates move that causes the ground to shake?

a)

energy

b)

light

c)

soil

94.

What type of energy waves do earthquakes produce?

a)

sound

b)

heat

c)

light

d)

seismic

95.

Which scale measures the magnitude, or size, of an earthquake?

a)

Mercalli

b)

Richter

c)

weight

d)

density

96.

The strength of the shaking from an earthquake is called it's intensity.

a)

True

b)

False

97.

A water wave caused by an earthquake is called a __________________.

a)

tsunami

b)

seismic wave

c)

electromagnetic wave

d)

surfing wave

98.

The point on earth's surface, directly above the focus (or hypocenter) is called the __________________.

a)

epicenter

b)

fault

c)

seismic wave

d)

earthquake place

99.

In an earthquake, the point underground where the rock first begins to move is called the _________________.

a)

focus or hypocenter

b)

epicenter

100.

The instrument that records and measures earthquake's seismic waves is called a ____________________.

a)

seismograph

b)

seismogram

101.
What does the theory of continental drift state?
a)
The continents were once joined in a super-continent and have moved over time
b)
Continents are stationary and do not move
c)
The Earth is broken into lithospheric plates that move due to convection currents
d)
none of the above
102.
What two specific continents fit together most noticeably?
a)
Africa and North America
b)
South America and Europe
c)
South America and Africa
d)
Antartica and Africa
103.

What is the force that moves the continents?

a)

Conduction

b)

Convection

c)

Radiation

d)

Conveyor belts

104.
This is a picture of glacier scars found in Africa.  What are these evidence for?
a)
Africa has always been near the equator
b)
Africa was once in an area of the Earth that had a very cold climate
c)
The continents have not moved
d)
sea floor spreading
105.
The circular arrows inside the Earth's Mantle represent what type of motion, that drives ALL plate movement?  
a)
Convergent Boundary
b)
Ocean Currents
c)
Convection Currents
d)
Transform Boundary
106.

True or False: The continental plates move so quickly that we can feel them.

a)

True

b)

False

107.

Give an example of physical weathering.

a)

Volcanic eruption

b)

Plant roots breaking rocks

c)

Freeze-thaw cycles

d)

Chemical reaction

108.

Explain the process of frost wedging also called freeze/ thaw

a)

Frost wedging or freeze/thaw is the process of water seeping into cracks in rocks, freezing, and expanding, causing the rock to break apart.

b)

Frost wedging or freeze/ thaw is the process of rocks being eroded by wind and rain.

c)

Frost wedging or freeze/thaw is the process of rocks being compressed by the weight of snow.

d)

Frost wedging or freeze/thaw is the process of rocks melting due to high temperatures.

109.

How is chemical weathering different from physical weathering?

a)

Chemical weathering is caused by extreme heat, while physical weathering is caused by water erosion.

b)

Chemical weathering only affects soft rocks, while physical weathering affects hard rocks.

c)

Chemical weathering involves the breaking of rocks due to physical force.

d)

Chemical weathering breaks down of rocks changing minerals into new minerals

110.

What are the effects of weathering on rocks?

a)

Rocks can break down into smaller pieces

b)

Rocks become more colorful and vibrant

c)

Rocks become softer

d)

Rocks become stronger

111.
a)

mechanical weathering

b)

abrasion

c)

chemical weathering

d)

freeze/thaw

112.

Which type of weathering most likely caused the rock shape in this picture?

a)

tree roots

b)

acid rain

c)

freeze/ thaw

d)

sand blown by wind

113.

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

a)

They type of pot you put the plants in.

b)

The amount you water each plant.

c)

The amount of sunlight the plants get.

d)

The amount the plant grows.

114.

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

a)

the different surfaces

b)

using the same ball

c)

how high they bounce

115.

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease (go down)." What is the independent variable?

a)

Whether salt is added or not

b)

Boiling Point

c)

Amount of water

116.

If you were testing the time it took for objects of different sizes to reach the ground after being dropped from 30 feet in the air, which of these would be the DEPENDENT VARIABLE?

a)

The time it takes for each object to hit the ground.

b)

The size of each object.

c)

The type of object you use.

d)

The height you drop the object from

117.

What is the manipulated variable?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we keep the same to make the experiment fair

118.

What are the constant variables?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we keep the same to make the experiment fair

119.

Scientific Question: Does being tardy impact test scores?

What is the manipulated variable?

a)

test scores

b)

the time a student arrives to class

c)

amount of time to complete test

120.

Scientific Question: Does being tardy impact test scores?

What is the responding variable?

a)

test scores

b)

the time a student arrives to class

c)

amount of time to complete test

121.

Scientific Question: Will a person fall asleep faster if they listen to music?

What is the manipulated variable?

a)

music

b)

time to fall asleep

c)

person

122.

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)

how tasty the breakfast is

123.
What is the INDEPENDENT  variable (cause) is this experiment? 
"Which type of medium is best for plant growth?" 
a)
height of plant (cm)
b)
type of medium (soil vs. sand)
c)
amount of medium
d)
types of plant
124.
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
125.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
126.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
127.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
128.
Jill has a gel pen. The gel pen has a mass of 8g and a volume of 2cm3. What is the density of the pen?
a)
4 g/cm3
b)
16 g/cm3
c)
.25 g/cm3
d)
64 g/cm3
129.
An igneous rock containing large crystals is most likely a(n)
a)
Chemical Rock
b)
Foliated Rock
c)
Extrusive Rock
d)
Intrusive Rock
130.
If heat and pressure inside the Earth cause a rock to melt, the material that formed would be
a)
Metamorphic
b)
Magma
c)
Sedimentary
d)
Igneous
131.
You find a rock in which the grains are arranged in parallel bands of white and black crystals.  The rock is probably a(n)
a)
Igneous rock
b)
Sedimentary rock
c)
Metamorphic rock
d)
Extrusive rock
132.
Fossils are only found in
a)
Sedimentary rocks
b)
Foliated Metamorphic rocks
c)
Igneous Rocks
d)
Nonfoliated Metamorphic rocks
133.

Igneous rock that cools slowly have ______ crystals

a)

small

b)

large

c)

purple

d)

green

134.

The Statue of Liberty has oxidized over the years. This is an example of...

a)

Physical Weathering

b)

Chemical Weathering

135.

Process where sediment is placed in a new location (ex: Sand Dunes)

a)
Erosion
b)
Deposition
c)
Weathering
136.

When molten lava hardens, it becomes what type of rock?

a)

Metamorphic

b)

Igneous

c)

Sedimentary

137.

Igneous rock that forms underneath the earth's surface and has not erupted yet.

a)

Extrusive

b)

Intrusive

138.

What process will turn metamorphic rock into sedimentary rock?

a)

Heat & Pressure

b)

Cooling

c)

Melting

d)

Weathering

139.

What does the Law of Superposition state?

a)

Younger fossils are found deeper

b)

Younger fossils are found shallower

c)

Older fossils are found shallower

d)

Fossil age can't be determined by location

140.

What is wrong with this graph?

a)

The dependent variable is not labeled.

b)

The data that is graphed is incorrect and a different graph should have been used.

c)

The intervals on the x and y axis are written incorrectly.

d)

The color of the graph is not appropriate or professional

141.

What kind of graph is this called?

a)

Circle graphg

b)

Line graph

c)

Pie chart

d)

Bar graph

142.

Time such as minutes, days, and months will always be a(n) ________________ variable when graphing.

a)

Controlled

b)

Independent

c)

Dependent

d)

Extraneous

143.

What is the independent variable in this graph?

a)

Tadpoles

b)

Year

c)

Frogs

d)

Number of tadpoles in the pond

144.

What type of variable is the "Price per Bushel (dollars)" in this graph?

a)

Bar graph

b)

Dependent variable

c)

Independent variable

d)

Controlled variable

145.

You want to create a graph that shows your height over a 12-month period. What type of graph will you use? Why?

a)

A line graph because you can put the data points on the graph and see how much you grew over a 12-month period.

b)

Both a line and bar graph would be appropriate because both graphs would be able to show your height over a 12-month period.

c)

A circle graph because we will be able to easily see your height over a 12-month period.

d)

A bar graph because the bars will make it very easy to see how you grow over the months.

146.

What is a dependent variable?

a)

A variable most often found on the x-axis

b)

Dependent variables are only found on pie charts

c)

The variable that changes because another variable changes

d)

The variable the experimenter changes or manipulates

147.

You have been asked to make a graph which represents everyone's favorite video game system in your class. Which type of graph would work best?

a)

Circle

b)

Table

c)

Bar

d)

Line

148.

What part of this data table will be graphed on the Y-AXIS?

a)

The food cooked

b)

Type of barbecue

c)

The time

d)

The temperature

149.

What's the independent variable?

a)

Favorite Color

b)

Color

c)

Number of Students

150.

What's the dependent variable?

a)

Favorite Color

b)

Color

c)

Number of Students

151.

How many students' favorite color is red?

a)

5

b)

6

c)

7

d)

3

152.

What's the majority of students favorite color?

a)

Yellow

b)

Red

c)

Blue

d)

Green

e)

Pink

153.

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

154.

Dependent variable (DV) label with units is found on the _____ axis

a)

Y-axis

b)

X-axis

155.

Independent variable (IV) label units are found on the _______ axis.

a)

Y-axis

b)

X-axis

156.
What is the independent variable on the graph (x-axis)?
a)
Metro Bicycle Shop Weekly Sales
b)
Bicycles Sold
c)
Types of Bicycles
157.

What is the dependent variable in this graph?

a)
Plant Growth
b)
Growth (cm)
c)
Hours
d)
15
158.

Which type of graph should be used for the data?

a)

Circle

b)

Bar

c)

Line

159.

Research Question: Does the type of gasoline put in a car affect how fast the car can drive.

What is the independent variable?

a)

Type of gasoline

b)

which car the gas is put into

c)

how fast the car can drive

d)

how much gas is put into the car

160.

How many independent variables should you have in an experiment?

a)

two

b)

as many as possible

c)

four

d)

one

161.
What is the dependent variable?
a)
Grade
b)
Number of Students
162.

What is the independent variable on this graph?

a)

points scored

b)

Number of hours practicing

c)

How the number of hours practicing affects the points scored

d)

the line

163.

What is the relationship between the variables on this graph?

a)

There is no correlation between the variables

b)

As the points scored increases, then the hours spent decreases.

c)

As the hours spent practicing increases, then the points scored decreases

d)

As the hours spent practicing increases, then the points scored increases

164.

What is the relationship between the variables in the chart?

a)

As the pH of the soil increases, then the average plant growth (cm) decreases.

b)

As the average plant growth changes, then the pH of the soil increases.

c)

As the pH of the soil decreases, then the average plant growth (cm) decreases.

d)

There is no correlation between the pH of the soil, and the average plant growth.