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Science 7 - Big Idea Test #1 Review

Total questions: 138

Worksheet time: 3hrs 0mins

Name
Class
Date
1.
One of the nutrients that plants need to grow healthy and develop properly is nitrogen. If plants do not get enough nitrogen, their leaves will...
a)
Turn yellow
b)
Wilt and die
c)
Curl and turn brown
d)
Lose too much water
2.
Plants prevent the process that moves soil from place to place, because their roots hold the soil in place. This process is...
a)
Erosion
b)
Respiration
c)
Weathering
d)
Protection
3.
Soil is a natural resource. The components of soil include organic matter and minerals. When soil contains partly decayed organic matter it is called...
a)
Clay
b)
Sand
c)
Humus
d)
Vegetative
4.
Healthy high yield crops require large amounts of nutrients. All of these nutrients have specialized functions. Fertilizer usually contains three of the six nutrients, including...
a)
Nitrogen, potassium, sulfur
b)
Phosphorus, calcium, carbon
c)
Potassium, nitrogen, phosphorus
d)
Magnesium, potassium, calcium
5.
Many farmers’ practices are used to save the soil from excess erosion. Planting trees or shrubs along the edges of field is one such practice. The purpose behind this is to...
a)
Provide travel corridors for water
b)
Enhance crop rotation
c)
Plant the seeds through the stubble
d)
Reduce wind damage and trap snow
6.
In order to make an artificial environment work without soil, plants are grown in a..
a)
Hydrofoil
b)
Nutrient solution
c)
Hydroponic
d)
Hydrogenerate
7.
Humus is.....
a)
the dead parts of plants and animals in soil.
b)
A food we eat with pretzels.
c)
The tiny particles inside of soil
d)
The roots that come off of a plant and live in soil.
8.
How do farmers fix the problem of salty soil?
a)
by planting fibrous root crops
b)
By planting long rooted crops and watering less
c)
By irrigating the fields with fresh water 
d)
putting a cover on your crops
9.

Bacteria and fungi are ………………………...

a)

help prevent erosion of the soil

b)

animals that help aerate the soil

c)

decomposers

10.

What would happen if farmers did not rotate their crops each year?

a)

Nothing would happen- everything would be fine

b)

More water would stay in the field

c)

Soil would run out of nutrients

d)

Plants would remain healthy

11.

How does water flow through a plant (from entry to exit)?

a)

stem-root-leaves

b)

leaves-stem-root

c)

root-stem-leaves

d)

root-leaves-stem

12.

Which of the following describe transpiration best?

a)

Water enters the leaves of a plant as a liquid.

b)

Water exits the leaves of a plant as liquid.

c)

Water enters the leaves of a plant as a gas.

d)

Water exits the leaves of a plant as a gas.

13.

Which statement is correct?

a)

The xylem carries water, while the phloem carries glucose.

b)

The xylem carries glucose, while the phloem carries water.

c)

The xylem carries oxygen, while the phloem carries carbon dioxide.

d)

The xylem carries carbon dioxide, while the phloem carries oxygen.

14.

What plant process occurs in the chloroplasts (located in the leaf) and allows a plant to make its own food?

a)

Respiration

b)

Photosynthesis

c)

Transpiration

d)

Capillary Action

15.

What are the raw materials needed for photosynthesis to occur?

a)

Carbon Dioxide (CO2)

b)

Water (H2O)

c)

Radiant energy

d)

Chlorphyll

e)

All of the above

16.

What substances exit the leaf through the stomata? Select all that are correct

a)

Water (H2O) as a gas

b)

Oxygen (O2)

c)

Glucose (C6H12O6)

d)

Carbon Dioxide (CO2)

17.

Which substance(s) enter the leaf as an ingredient for photosynthesis?

a)

Glucose

b)

Oxygen

c)

Water

d)

Carbon Dioxide

18.

What part of the plant is the main support and anchor and helps absorb water?

a)

Tap Root

b)

Lateral Roots

c)

Root Hairs

d)

Stem

19.

Which part is how most plants reproduce and is where seeds are usually found?

a)

Flower

b)

Axillary Bud

c)

Fruit

d)

Leaf Blade

20.

Which part of the plant attracts bees and other insects to aid in pollination?

a)

Flower

b)

Fruit

c)

Leaf Blade

d)

Node

21.

What are the functions of the roots of plants?

a)

To absorb water and nutrients for the plant. To provide support for the plant to grow.

b)

To enable the plant to grow taller. To transport materials around the plant.

c)

To make seeds for the plant in order to help plants reproduce.

d)

To make fruits and vegetables for the plant in order to help plants sexually reproduce.

e)

To hold the DNA and nutrients for a plants so it can reproduce and form a new plant.

22.

What are the functions of the stem of plants?

a)

To absorb water and nutrients for the plant. To provide support for the plant to grow.

b)

To enable the plant to grow taller. To transport materials around the plant.

c)

To make seeds for the plant in order to help plants reproduce.

d)

To make fruits and vegetables for the plant in order to help plants sexually reproduce.

e)

To make food for the plant through the process of photosynthesis.

23.

What are the functions of the leaves in plants?

a)

To absorb water and nutrients for the plant. To provide support for the plant to grow.

b)

To enable the plant to grow taller. To transport materials around the plant.

c)

To hold the DNA and nutrients for a plants so it can reproduce and form a new plant.

d)

To make fruits and vegetables for the plant in order to help plants sexually reproduce.

e)

To make food for the plant through the process of photosynthesis.

24.

What are the functions of seeds?

a)

To absorb water and nutrients for the plant. To provide support for the plant to grow.

b)

To enable the plant to grow taller. To transport materials around the plant.

c)

To hold the DNA and nutrients for a plants so it can reproduce and form a new plant.

d)

To make seeds and fruits/vegetables for the plant in order to help plants sexually reproduce.

e)

To make food for the plant through the process of photosynthesis.

25.

Which part produces ovules?

a)

3

b)

4

c)

5

d)

7

26.
Seeds need _______ , warm temperatures, and nutrients in order to start growing.
a)
grass
b)
water
c)
leaves
d)
stems
27.
A seed can move by wind, water, and ________.
a)
clouds
b)
singing
c)
cars
d)
animals
28.
Keeps the seed from drying out
a)
embryo
b)
seed coat
c)
cotyledon
29.

Jamie wanted to grow tomato plants. He placed five seeds in the soil and watered them. A few days later he noticed that the seeds were beginning to break open, and a plant was emerging. What process did Jamie most likely observe?

a)

pollination

b)

fertilization

c)

germination

d)

condensation

30.

Combining of egg and sperm

a)

Asexual Reproduction

b)

Sexual Reproduction

c)

Diverse

d)

Uniform

31.

Involves only one parent

a)

Asexual Reproduction

b)

Sexual Reproduction

c)

Diverse

d)

Uniform

32.

What can we make from plants?

a)

cars

b)

thread

c)

computers

d)

fridges

33.

Paper comes from

a)

the trunk of trees

b)

the leaves of trees

c)

the roots of trees

d)

the flowers of trees

34.

It is the process of growing plants and raising animals for food, clothing, and other useful products.

a)

Agriculture

b)

Animal Science

c)

Agricultural Engineering

d)

Agricultural Science

35.

What is the term used when plant of the same kind are grown and cultivated at one place on a large scale?

a)

farming

b)

vegetable farming

c)

crop

d)

plant

36.

It is the artificial application of water to the land or soil.

a)

Irrigation

b)

Propagation

c)

Revegetation

d)

Soil consolidation

37.

Selective breeding is...

a)

a process to create an organism with desired traits from parents with those desired traits to benefit humans

b)

natural method of producing offspring with desired traits

c)

creating a new species

d)

making organisms reproduce during times of stress

38.
Which is another term for selective breeding?
a)
Artificial selection
b)
Natural Selection
c)
Intelligent selection
39.

When selective breeding food crops what might a farmer select for? (Select all that apply.)

a)

The plant the produced the most grain

b)

The plant the produced the largest sized grain

c)

The plant that was the most disease resistant

d)

The plant that was the smallest

e)

The smelliest plant

40.

This is an example of a ________________________ volcano.

a)

shield

b)

composite

c)

cinder cone

d)

None of these are correct

41.

This is an example of a _________________________ volcano.

a)

cinder cone

b)

shield

c)

composite

d)

None of these are correct

42.

This is an example of a _____________________ boundary.

a)

transform

b)

convergent

c)

divergent

d)

Subduction

43.

Sea Floor Spreading would be considered a type of ___________________ boundary.

a)

divergent

b)

convergent

c)

subduction

d)

transform

44.

A seismograph measures _________________________.

a)

earthquake intensity

b)

volcanic intensity

c)

sea spreading distance

d)

lava density

45.

One of the clues that scientists used to discover which continents used to be connected to each other were _______________________.

a)

fossils

b)

mountain ranges

c)

shape of continents

d)

All of these are correct

46.

The oldest time period listed below is the _________________.

a)

Precambrian period

b)

Cenozoic Era

c)

Mesozoic Era

d)

Paleozoic Era

47.

Volcanoes surrounding the Pacific Ocean region are called the ______________________.

a)

Ring of Fire

b)

Lava Flows

c)

Magma Mountains

d)

Tsunami Fields

48.

Who is the scientist associated with the theory of Continental Drift?

a)

Alfred Wegener

b)

Ben Franklin

c)

Nikolas Tesla

d)

Charles Darwin

49.

Tectonic plates shift around Earth at an extremely fast rate.

a)

True

b)

False

50.
Which part of the Earth is liquid?
a)
Inner core
b)
Outer core
c)
Mantle
d)
Crust
51.
The point of the surface of the earth where an earthquake starts is the
a)
seismic wave
b)
epicentre
c)
focus
d)
Richter scale
52.
Lava is 
a)
solid rock above ground
b)
molten rock above ground
c)
molten rock below ground
d)
solid rock below ground
53.
Weathering can be caused by
a)
water
b)
ice
c)
wind
d)
all of the above
54.
Igneous rocks are made from
a)
magma
b)
sediment
c)
glaciers
d)
erosion
55.
A sedimentary rock was changed by heat and pressure underground. It is now a 
a)
still a sedimentary rock
b)
an igneous rock
c)
a metamorphic rock
d)
a hoodoo
56.
Fossils are mostly found in
a)
igneous rocks
b)
sedimentary rocks
c)
metamorphic rocks
d)
none of the above
57.
Rocks go through a process of change, and can become new types of rocks. This is called
a)
the rock cycle
b)
fracture
c)
mineralization
d)
techtonic plates
58.

A divergent boundary

a)

Where two tectonic plates collide

b)

Where two tectonic plates separate

c)

Where two tectonic plates slide past each other

59.

A convergent boundary is

a)

Where two tectonic plates collide

b)

Where two tectonic plates separate

c)

Where two tectonic plates slide past each other

60.

… is the breaking down of rocks by physical, chemical or biological means.

(a)  

61.

Acid rain is an example of which type of weathering?

a)

Physical/ Mechanical

b)

Chemical

c)

Biological

d)

None of the above

62.

A plant breaking ground rock apart with its roots is an example of which type of weathering?

a)

Physical/ Mechanical

b)

Chemical

c)

Biological

d)

None of the above

63.
What type of fossil is this?
a)
Mold
b)
Cast
c)
Preserved remains
d)
Trace fossil
64.
What type of fossil is this?
a)
Trace fossil
b)
Mold
c)
Cast
d)
Carbon film
65.
What type of fossil is this?
a)
Mold 
b)
Cast
c)
Preserved remains
d)
Petrified
66.
What is the correct order of the rock layers from oldest to youngest?
a)
B, C, D, E, A
b)
A, B, C, D, E
c)
E, D, C, B, A
d)
B, C, D, A, E
67.
What is the correct order of the rock layers from oldest to youngest?
a)
F, E, C, B, A, D
b)
A, B, C, D, E, F
c)
F, E, D, C, B, A
d)
D, F, E, C, B, A
68.
Which of the following is NOT an example of a fossil?
a)
a petrified dinosaur bone
b)
a footprint captured in mud
c)
a seashell found on the beach
d)
an insect stuck in amber
69.
In order for a fossil to form, which of the following events must happen FIRST?
a)
Slowly, minerals in the water replace the bone.
b)
Sediment covers the bone.
c)
An animal dies.
d)
The bone is no longer a bone, but a rock copy.
70.
Why don't we know what many ancient plants looked like? 
a)
They had too many soft parts.
b)
They were all eaten by dinosaurs.
c)
There weren't ancient plants.
d)
They had too many hard parts.
71.
How are fossils created?
a)
Traces of organisms get turned into stone.
b)
Dead organisms are quickly buried for millions of years.
c)
Animals get trapped.
d)
All of the above
72.
The Law of Superposition helps scientists to determine what?
a)
The absolute age of rock layers
b)
The age of fossils
c)
The relative age of rock layers
d)
the super powers of rocks
73.
What is hardened tree sap called?
a)
coprolites
b)
index fossils
c)
gastroliths
d)
amber
74.
Principle that states in a sequence of undisturbed rocks, the oldest rocks are on the bottom and the rocks become progressively younger toward the top 
a)
superposition 
b)
uniformitarianism
c)
half-life
75.
Fossil of thin layer of carbon atoms and molecules 
a)
original remains 
b)
carbon film
c)
trace fossil
76.

What type of fossils provide evidence of the activities of ancient organisms?

a)

molds and casts

b)

petrified fossils

c)

trace fossils

d)

carbon films

77.

Which of the following substances is not able to preserve entire organisms?

a)

sticky tar

b)

water

c)

amber

d)

ice

78.
The process that takes place as rocks are broken down into smaller pieces is called _____
a)
erosion
b)
weathering
c)
climate
d)
hammering
79.
The process of breaking big rocks into little ones is called _____
a)
erosion
b)
mechanical weathering
c)
chemical weathering
d)
hammering
80.
When rocks have been broken down and are later moved by wind, water, or ice, that's called _____
a)
erosion
b)
mechanical weathering
c)
chemical weathering
d)
hammering
81.
"Weathering helps make a mess and erosion helps _____"
a)
to further the mess
b)
clean it up
c)
to hide it
d)
to take the blame
82.

The hardest of all minerals is...

a)

iron.

b)

diamond.

c)

talc.

d)

quartz.

83.

The property of minerals that describes the shine of a mineral is:

a)

hardness.

b)

streak.

c)

cleavage.

d)

luster.

84.

The property of minerals that describes how a mineral breaks is:

a)

cleavage.

b)

luster.

c)

hardness.

d)

density.

85.

The color of a mineral in powder form is called the mineral's 

a)

hardness.

b)

specific gravity.

c)

luster.

d)

streak.

86.

During which process does layer upon layer of sediment build up, exerting pressure on the layers below?

a)

Erosion

b)

Compaction

c)

Conglomerate

87.

Heat and ____________ can change sedimentary rock into metamorphic rock.

a)

Pressure

b)

Melting

c)

Coolig

88.

Igneous rocks form from the __________ of magma or lava.

a)

Pressure

b)

Cooling

c)

Heat

89.

Mutualism, commensalism and parasitism are all examples of:

a)

Symmetry

b)

Relationships

c)

Species interdependence

d)

Symbiosis

90.

This is an example of:

a)

Mutualism

b)

Parasitism

c)

Commensalism

91.

This is an example of:

a)

Mutualism

b)

Parasitism

c)

Commensalism

92.

Which is not a basic need?

a)

Meat

b)

Habitat

c)

Gas exchange

d)

Water

93.

An adaptation is passed through generations because it helps an organism

a)

have fun

b)

survive in its environment

c)

have an easier life

d)

reproduce

94.

Clearing a plot of land to build a mall is an example of how

a)

our needs impact the needs of nature

b)

our wants impact the wants of nature

c)

our wants impact the needs of nature

95.

Which is an example of a biotic factor?

a)

Tapeworm

b)

Water

c)

Soil

d)

Dead tree

96.

Something able to sustain itself using energy from the sun

a)

Predator

b)

Consumer

c)

Producer

d)

Herbivore

97.

The fish in this photo represents:

a)

Predator

b)

Prey

c)

Consumer

98.

A good example of an omnivore is:

a)

Grizzly Bear

b)

Rabbit

c)

Deer

d)

Lion

99.

This image shows:

a)

Biomass

b)

Pyramid of numbers

c)

Food chain

d)

Food web

100.

Scavengers are organisms who:

a)

Prey on dead organic matter

b)

Are often top predators

c)

Grow on or live in decaying organic matter

d)

Are types of mushrooms or fungi

101.
_____ is the source of energy for almost all life on Earth.
a)
Food
b)
Water
c)
Sun
d)
Air
102.
________ is found in all living things.
a)
Carbon
b)
Water
c)
Air
d)
All the above
103.

A non-living part of an ecosystem

a)

biotic factor

b)

abiotic factor

c)

terrestrial

d)

producer

104.

A community of living and nonliving things in their natural environment

a)

Community

b)

Oxygen

c)

Biotic

d)

Ecosystem

105.

An organism that is often harmed in a symbiotic relationship with another organism.

a)

parasite

b)

competition

c)

host

d)

symbiosis

106.
The place in which an organism lives  
a)
habitat
b)
population
c)
ecosystem
d)
niche
107.

Why are indicator species used to measure the health of ecosystems?

a)

They are the strongest species

b)

There are lots of them

c)

They exist all over the world

d)

They are most sensitive to change

108.

Tracking the changes of the number of organisms would be an example of which type of monitoring?

a)

Biological

b)

Chemical

c)

Physical

d)

Environmental

109.

If the snake population decreases (there are fewer snakes), what will happen to the mouse population?

a)

increase

b)

decrease

c)

stay the same

110.

The desert is a very hot and dry climate with very little water. In order to survive, many plants have thick leaves that hold lots of water. This is an example of a (an):

a)

niche

b)

producer

c)

commensalism

d)

adaptation

111.
All of the carbon in existence is continually recycled in the carbon cycle
a)
True
b)
False
112.

Which of the following removes carbon from the atmosphere and stores it in living matter?

a)

Combustion

b)

Respiration

c)

Photosynthesis

d)

Death

113.
carbon dioxide is a gas produced  by ________ and used by __________
a)
plants and animals 
b)
carbon and photosynthesis
c)
animals and plants 
d)
photosynthesis
114.

Carbon moves from fossil fuels to the atmosphere when fuels are burned.

a)

True

b)

False

115.

How is the carbon cycle similar to the water cycle?

a)

Both involve liquid substances falling to the Earth from the atmosphere?

b)

Neither process works at low temperature.

c)

Both involve the transfer of substances between animals, plants, and the Earth.

d)

Both involve the transfer of substances between the earth and outer space.

116.
When water is heated in the ocean by the sun and turns into water vapor
a)
condensation
b)
evaporation
c)
transpiration
d)
runoff
117.
After condensation, the droplets of water in the clouds fall to the earth in different forms
a)
precipitation 
b)
condensation
c)
evaporation 
d)
ground water
118.

In this energy pyramid, what organism would most likely be in level 2?

a)

producer

b)

herbivore

c)

carnivore

d)

apex predator

119.

As you go up the levels of the trophic pyramid, which of the following is true?

a)

There are more organisms and more energy

b)

There are more organisms and less energy

c)

There are less organisms and more energy

d)

There are less organisms and less energy

120.
Energy moves through a food chain from producers to consumers.
a)
True
b)
False
121.
Coyotes and ravens are _____________
a)
Herbivores
b)
Carnivores
c)
Omnivores
d)
Scavengers
122.

Before herbivores can move into an ecosystem...

a)

There must be a stable population of predators

b)

There must be a stable population of producers

c)

There must be a stable population of decomposers

d)

There must be a stable population of heterotrophs

123.
During which stage do clouds form?
a)
condensation
b)
evaporation
c)
precipitation
d)
transpiration
124.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
125.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
126.

In which organism would biomagnification be the most concentrated? (Remember the lab: Rabbits eat the grass, the snake eats the rabbit, the hawk eats the snake--the hawk is the apex predator)

a)

grass

b)

rabbit

c)

snake

d)

hawk

127.

Toxin concentrations _____________ as you go up the food chain.

a)

do not change

b)

increase

c)

decrease

128.

What is the main reason for the toxic concentration of DDT in organisms at the top of the food chain?

a)

Bioaccumulation

b)

Bioremediation

c)

Biomagnification

d)

Biodegradation

129.

What is a food chain?

a)

The flow of energy from one thing to another

b)

The way animals eat each other

c)

The way the sun makes everything

d)

How the plants grow

130.
succession that occurs in an area with no soil
a)
ecological succession 
b)
primary succession 
c)
secondary succession
d)
pioneer speciles
131.
the first organisms that appear in an ecological community
a)
ecological succession 
b)
primary succession 
c)
secondary succession
d)
pioneer speciles
132.
a stable ecological community that has reached equilibrium
a)
ecological succession 
b)
climax community
c)
secondary succession
d)
pioneer speciles
133.
starts with bare rock followed by lichen
a)
primary succession 
b)
secondary succession
c)
both types of succession
134.
occurs over time
a)
primary succession 
b)
secondary succession
c)
both types of succession
135.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
136.
How do lichens contribute to primary succession?
a)
Lichens decompose organic matter from animals and plants
b)
Lichens begin to break down rock to form soil
c)
Lichens are nitrogen fixing bacteria
137.
Natural disasters such as flooding and tornadoes are linked to ________________.
a)
primary
b)
secondary
c)
old field
d)
ecosystem
138.
What is the order of succession shown in this figure?
a)
A, B, C, D
b)
B, A, D, C
c)
C, D, A, B
d)
D, A, B, C

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7th Grade

6th Grade: Unit 7 Review: Minerals & Rocks in the Geosphere

133 questions

6th Grade: Unit 7 Review: Minerals & Rocks in the Geosphere

quiz

Worksheet

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6th - 8th Grade

Mid-Term Review

133 questions

Mid-Term Review

quiz

Worksheet

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6th - 8th Grade

7th Science Semester Review AMCMS 26

140 questions

7th Science Semester Review AMCMS 26

quiz

Worksheet

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6th - 8th Grade

🚀8.18 (Climb)

140 questions

🚀8.18 (Climb)

quiz

Worksheet

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7th Grade

Cells

136 questions

Cells

quiz

Worksheet

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7th Grade

General Revision for Grade 7

139 questions

General Revision for Grade 7

quiz

Worksheet

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7th Grade

Quiz Bowl Review (General Science)

140 questions

Quiz Bowl Review (General Science)

quiz

Worksheet

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7th - 12th Grade