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Worksheets

Checkpoint Revision

Total questions: 164

Worksheet time: 2hrs 42mins

Name
Class
Date
1.
What are the raw materials of photosynthesis?
a)
oxygen and carbon dioxide
b)
oxygen and glucose
c)
carbon dioxide and water
d)
water and glucose
2.
What are the products of photosynthesis?
a)
oxygen and carbon dioxide
b)
oxygen and glucose
c)
carbon dioxide and water
d)
water and glucose
3.
In which organelle does photosynthesis occur?
a)
mitochondria
b)
cell membrane
c)
nucleus
d)
chloroplasts
4.
What is the chemical formula for glucose?
a)
C6H12O6
b)
C6H6O12
c)
C12H6O12
d)
C6O2H6
5.
What is the chemical formula for water?
a)
H2O
b)
HO2
c)
CHO2
d)
CO2H
6.
What is the chemical formula for carbon dioxide?
a)
H2O
b)
CO2
c)
CHO2
d)
CO2H
7.
What is the chemical formula for oxygen?
a)
H12O2
b)
C6O2
c)
O3
d)
O2
8.

Why do plants need sunlight for photosynthesis?

a)

The light creates heat needed for photosynthesis to occur

b)

The light provides the energy needed to power photosynthesis

c)

Plants can't absorb carbon dioxide in darkness

d)

Plants can't absorb water in darkness

9.

Why are plants usually green?

a)

Because the chlorophyll reflects green light

b)

Because the chlorophyll absorbs green light

c)

Because the accessory pigments combine to make green

d)

Because the accessory pigments only absorb green light

10.
The process whereby plants capture energy and make complex molecules is
a)
chemosynthesis
b)
cell respiration
c)
photosynthesis
d)
homeostasis
11.
What three things are always needed for photosynthesis
a)
water, light, fertilizer, oxygen
b)
water, light, chlorophyll, oxygen
c)
water, roots, stems, leaves
d)
water, light, chlorophyll, carbon dioxide
12.
What is the name of the simple sugar that is produced in photosynthesis?
a)
Sucrose
b)
Dextrose
c)
Glucose
d)
Lactose
13.
What gas is USED in Respiration?
a)
O2
b)
CO2
c)
H2O
d)
CHO2
14.

What is a variegated leaf?

a)

One that has chlorophyll in some bits and not in others

b)

A random leaf

c)

A leaf that has chlorophyll in all parts of it

15.

Why do we boil the leaf?

a)

To keep it warm

b)

To denature the enzymes and so stop photosynthesis

c)

To make photosynthesis go faster

16.

To show that photosynthesis has occurred we test for starch. Why?

a)

Starch is a product of photosynthesis

b)

Not sure

c)

Glucose is a product of photosynthesis and is stored in the plant cells as starch

17.

What do we use to test for starch?

a)

Fluorine solution

b)

Chlorine solution

c)

Iodine solution

18.

If starch is present in the leaf, the leaf should turn what colour?

a)

Blue/Black

b)

Orange

c)

Red

19.

Microscopic organisms that live in aquatic environments and perform photosynthesis

a)

Phytoplankton

b)

Radiant energy

c)

Chlorophyll

d)

Photosynthesis

20.

Which of the following would cause an increase in the rate of photosynthesis occurring in a plant?

a)

An increase in the amount of available glucose

b)

An increase in the amount of available oxygen

c)

An increase in the amount of available light

d)

A decrease in the amount of available carbon monoxide

21.

Students are observing an aquatic plant. They understand that the bubbles they see rising from the cut stem of the plant are the gases produced during photosynthesis. Which of the following observations provides the best evidence that light is the source of energy for photosynthesis?

a)

Plants observed in artificial or in natural light were both seen to produce bubbles.

b)

The frequency of bubbling increases in bright light and slows to a stop in darkness.

c)

The orientation of the light seems to have no effect on the production of bubbles.

d)

The bubbles always rise to the surface of the water, moving towards the light.

22.

Water is transported from roots to shoots and leaves in:

a)

Xylem

b)

Phloem

c)

Stomata

d)

Cholorophyll

23.

What is transpiration?

a)

The evaporation and diffusion of water from inside leaves

b)

The uptake of water through root hair cells

c)

The loss of water from leaves by osmosis

d)

The uptake of water through stem cells

24.

What happens to the transpiration rate as light intensity increases?

a)

It changes

b)

It stays the same

c)

It decreases

d)

It increases

25.

What happens to the transpiration rate as temperature increases?

a)

It stays the same

b)

It changes

c)

It increases

d)

It decreases

26.

How do water enter the roots from the soil?

a)

diffusion

b)

osmosis

c)

transpiration

d)

active transport

27.

Root hairs cells are specialised cells for plant growth because

a)

they keep growing until they reach water and nutrients

b)

they have a large surface area to allow for greater photosynthesis

c)

they have a large surface area for absorbing water and nutrients

d)

they keep growing until they reach sunlight for photosynthesis

28.
Which plant parts carry sugars and other nutrients throughout the plant?
a)
phloem
b)
xylem
c)
roots
d)
leaves
29.
The two structures that limit transpiration  are known as
a)
Guard cells and xylem
b)
Stomata and guard cells
c)
xylem and phloem
d)
stomata and phloem
30.
The plant tissue that carries food materials DOWNWARD from the leaves to the rest of the pant is the ______.
a)
Phloem
b)
Stomata
c)
Chlorophyll
d)
Xylem
31.
Vascular tissue that transports water and minerals UPWARDS from a plant's roots is know as ______.
a)
Chlorophyll
b)
Phloem
c)
Stomata
d)
Xylem
32.

Some fertilisers are labelled NPK. What three minerals are in these fertilisers.

a)

Nitrogen, Phosphorus, Calcium

b)

Nitrogen, Sulphur, Potassium

c)

Nitrogen, Phosphorus, Krypton

d)

Nitrogen, Phosphorus, Potassium

33.

Which mineral is needed for growth and healthy leaves?

a)

nitrates

b)

phosphates

c)

magnesium

d)

potassium

34.

Which mineral is needed for healthy roots?

a)

Nitrates

b)

Phosphates

c)

Magnesium

d)

Potassium

35.

Which mineral is needed for making green chlorophyll?

a)

nitrates

b)

phosphates

c)

magnesium

d)

potassium

36.

Which mineral is needed for healthy flowers and fruits?

a)

nitrates

b)

phosphates

c)

magnesium

d)

potassium

37.

If a plant has yellow spots on its leaves, it needs more...

a)

nitrates

b)

phosphates

c)

magnesium

d)

potassium

38.

If a plant has purple spots on its leaves, it needs more...

a)

nitrates

b)

phosphates

c)

magnesium

d)

potassium

39.

If a plant has small, pale leaves, it needs more...

a)

nitrates

b)

phosphates

c)

magnesium

d)

potassium

40.

A farmer wants to protect his crop against attack by insects. What could he spray onto his crop?

a)

Pesticide

b)

Fungicide

c)

Herbicide

d)

Fertilizer

41.
a)
Thrip
b)
Whiteflies
c)
Aphid
d)
Caterpillar
42.

Excretion is defined as

a)

the removal of undigested matter

b)

frequent visits to the washroom

c)

sweating when exercising

d)

the removal of metabolic waste

43.

Egestion is define as

a)

the removal of undigested matter

b)

frequent use of the washroom

c)

the removal of metabolic waste

d)

sweating when exercising

44.

Which of the following is not a waste product of excretion

a)

Carbon Dioxide

b)

Oxygen

c)

Sweating

d)

Urea

45.

Another term for sweating; removal of water, salt and urea through the sweat glands in the skin.

a)

perspiration

b)

respiration

c)

reabsorption

d)

transport

46.

The lungs, kidney and skin are all part of the

a)

nervous system

b)

nephron

c)

kidney

d)

excretory system

47.

What does dialysis do?

a)

Removes waste, salt and extra water from the body

b)

Helps to control blood pressure

c)

Regulates the body's fluid balance

d)

All of the above

48.

On average, how many times a week do people need dialysis?

a)

Every day

b)

3 times per week

c)

2 times per week

d)

1 time per week

49.

Which results in offspring that are genetically unique and display a combination of traits from each parent?

a)

Sexual

b)

Asexual

c)

Neither

d)

Both

50.

Which type of reproduction results in offspring that are identical to the parent?

a)

Sexual

b)

Asexual

c)

Neither

d)

Both

51.
Genes pass from parents to offspring on chromosomes.
a)
true
b)
false
52.

How many chromosomes would be in a human sex cell if body cells have 46 chromosome?

a)

46

b)

92

c)

23

d)

12

53.
Carbon dioxide is absorbed by producers to make what in photosynthesis?
a)
oxygen
b)
carbon
c)
carbohydrates
d)
water
54.
Combustion is another word for
a)
burning
b)
melting
c)
exploding
d)
incinerating 
55.
How do living organisms return carbon to the atmosphere in the carbon cycle
a)
respiration and decomposition
b)
respiration and photosynthesis
c)
death
d)
burning
56.
Why is the increase in greenhouse gasses an issue
a)
It causes climate change and increase in the global temperature 
b)
It can lead to a major increase in greenhouses
c)
It leads to more factories
d)
It causes a moajor decrease in people
57.
Carbon is stored in
a)
trees and other living things
b)
oceans
c)
underground in soil and fossil fuels
d)
all are correct
58.
Most adaptations that help an organism survive are passed on from parent to child as ___traits?
a)
adaptable
b)
physical
c)
more
d)
inherited
59.
Differences that exist naturally among members of a population or species___?
a)
mutation
b)
adaptation
c)
variations
d)
evolution
60.

Which of the following describes what is meant by Natural Selection?

a)

An organism will survive no matter what its adaptations may be

b)

An organism with adaptations that do not allow it to reproduce as effectively as others will survive.

c)

An organism with adaptations that allow it to obtain resources and reproduce more effectively than others will survive.

d)

No organisms will survive.

61.
What does the term species mean?
a)
All the different organisms in a population
b)
A community of organisms.
c)
Organisms of the same kind that can reproduce with one another.
d)
Organisms of different kinds that can reproduce with one another.
62.
Charles Darwin's work contributed to the theory of Natural Selection
a)
True
b)
False
63.

In Survival of the Fittest Darwin believed

a)

The organism with adaptations that allow it to fit into its environment better is the one that will survive and reproduce.

b)

The organisms without the adaptations to fit into its environment is the one that will survive.

64.

What was the variation in the Peppered Moth that affected their survival?

a)

Size

b)

Aggressiveness

c)

Color

d)

Species

65.

Before the industrial revolution the birds were eating more black moths. After the industrial revolution the birds started eating more white moths. Why

a)

The birds thought the white moths tasted better.

b)

There were not any black moths to eat

c)

The white moths stood out on the dark trees so the birds could see them easier.

66.

Which of the following are factors that affect the survival of species?

a)

Overproduction

b)

Variation

c)

Competition

d)

All of the above

67.

According to most scientists, what is the ultimate cause of most mass extinctions?

a)

overhunting

b)

evolution of new species to replace old ones

c)

major change in environment due to extreme natural events

d)

asteroid impact

68.
Humans are causing extiction in which ways?
a)
By over hunting animals for food or products.
b)
By destroying the natural habitat of species.
c)
By polluting the environments of the world.
d)
All of the above.
69.

True or False? Many scientists think that an asteroid caused the dinosaurs to go extinct.

a)

True

b)

False

70.

the basic structural unit of matter

a)

atom

b)

matter

c)

element

d)

nucleus

71.

a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means

a)

element

b)

subatomic particle

c)

electron

d)

matter

72.

the positively charged subatomic particle contained in the nucleus of an atom

a)

proton

b)

neutron

c)

electron

d)

matter

73.

a unique number for each element that equals the number of protons in an atom of that element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

74.

the mass of an atom, calculated by adding the number of protons and neutrons in the nucleus of the atom

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

75.

a row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

76.

one of several forms of a single element, which contains the same number of protons, but different numbers of neutrons

a)

isotope

b)

ion

c)

orbital

d)

nucleus

77.

An element has the mass number 12 and atomic number 6. The number of neutrons in it is:

a)

6

b)

10

c)

4

d)

8

78.

If an atom has 10 electrons, how many protons does it have?

a)

0

b)

1

c)

10

d)

5

79.
Anions are...
a)
Positive
b)
Negative
c)
Neutral
d)
Crying
80.
Cations are...
a)
Positive
b)
Negative
c)
Neutral
d)
Purring
81.
What is electrolysis?
a)
breaking down of a compound using a current
b)
making a compound using a current
82.

Ions are formed when atoms...

a)

lose or gain electrons

b)

lose electrons

c)

gain electrons

d)

gain neutrons

83.

Ions are formed because atoms want to obtain the stable arrangement of a noble gas.

a)

True

b)

False

84.

In general, metal atoms lose electrons forming _____ ions, non-metal atoms gain electrons forming _____ ions.

a)

negative, positive

b)

negative, negative

c)

positive, negative

d)

positive, positive

85.

Ionic bonds are the _____ between positive and negative ions.

a)

covalent bonds

b)

metallic bonds

c)

polar bonds

d)

electrostatic attraction

86.

Ionic compounds have ____ melting points and _____ boiling points because _____ ionic bonds must be broken in order to break the lattice.

a)

low, low, weak

b)

low, high, weak

c)

low, high, strong

d)

high, high, strong

87.

Many ionic compounds are soluble in water.

a)

True

b)

False

88.

Ionic compounds always conduct electricity - whether they are in the solid, liquid or gas form.

a)

True

b)

False

89.

Ionic compounds conduct electricity only when molten or in a solution because...

a)

electrons are free to move

b)

water is free to move

c)

molecules are free to move

d)

ions are free to move

90.
A covalent bond involves a __________ of electrons.
a)
sharing
b)
borrowing
c)
exchanging
d)
switching
91.
Low melting point and low solubility in water are general properties of ______________________ compounds
a)
ionic
b)
covalent
c)
chemical
d)
glucose
92.

Covalent compounds are formed between

a)

a metal and a nonmetal

b)

two nonmetals

c)

two metals

d)

ions

93.
Melting points are very high – a large amount of energy is needed to break all the covalent bonds
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent 
94.
Low melting and boiling points which increase with increasing molecule size due to increased intermolecular forces.
a)
simple covalent molecules
b)
metallic
c)
ionic
d)
giant covalent 
95.
In an endothermic reaction, heat is ...
a)
taken in or absorbed
b)
given out or released 
96.
Exothermic reactions...
a)
Absorb energy
b)
Release energy
c)
Release Color
d)
Absorb Color
97.
What happens in ALL chemical changes?
a)
Change in state of matter
b)
A new substance is formed
c)
Bubbles are produced
d)
An explosion
98.
What is a solute?
a)
The substance that does the dissolving in a solution.
b)
The substance that is dissolved into the solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
99.
The thing that does the dissolving
a)
Solute
b)
Solvent
c)
Colloid
d)
Solution
100.

According to the law of conservation of mass, how does the amount of each element on the product side compare to each element on the reactant side?

a)

The amount of atoms on each side is equal

b)

The amount of atoms on the product side is greater

c)

The amount of atoms on the reactant side is greater

d)

Depends on the reaction

101.

Will the following reaction take place?


Ni + NaCl ->

a)

NO

b)

YES

102.
A displacement reaction will occur when...
a)
a more reactive metal displaces a less reactive metal from its compound.
b)
A less reactive metal displaces a more reactive metal from its compound
c)
Displacement only occurs when two of the same metals are reacted 
d)
Displacement reactions will only occur in metals above iron in the reactivity series
103.

What will the products of this reaction be?

calcium + zinc nitrate --------->

a)

Calcium + zinc nitrate

b)

Zinc + calcium nitrate

c)

there will be no reaction

d)

Zinc + calcium chloride

104.

Some metals, such as aluminium, are extracted from their ores using electrolysis.

Why are some metals extracted using electrolysis?

a)

They are native metals

b)

They are more reactive than carbon

c)

They have low melting points

d)

They conduct electricity

105.

What is an ore?

a)

a solid metal

b)

a rock containing a metal combined with other elements, often oxygen

c)

an element

d)

an object used to row a boat

106.

Which element cannot be extracted from its ore by reduction with carbon?

a)

iron

b)

aluminium

c)

copper

d)

zinc

107.
Which series is used to predict the reactions of metals with carbon and other elements?
a)
reactionary series
b)
reaction series
c)
redox series
d)
reactivity series
108.

Many metals are extracted from their ores by heating them with carbon in huge furnaces. Which metal(s) cannot be extracted using this method?

a)

Aluminum

b)

Calcium

c)

Zinc

d)

Copper

109.

Complete the following word equation:

Metal + Acid -->

a)

Salt + water

b)

Salt + hydrogen

c)

Salt + Water + Carbon dioxide

110.

Complete the following word equation:

Metalcarbonate + acid -->

a)

Salt + Hydrogen

b)

Salt + Water + Carbon Dioxide

c)

Salt + Water

111.

How do you remove the water to leave solid copper sulfate crystals?

a)

Filter

b)

Evaporate

c)

Distill

112.

What is the test for Hydrogen gas?

a)

Squeaky pop

b)

Lime water turning cloudy

c)

Add pH paper

113.

What is the test for Carbon Dioxide?

a)

Add Litmus paper

b)

Lime water turning milky

c)

Squeaky pop

114.

Why does a higher temperature increase the rate of a reaction?

a)

it increases both the frequency and energy of particle collisions

b)

it only increases the frequency of particle collisions

c)

it only increases the energy of particle collisions

d)

it reduces the activation energy of the reaction

115.

Grinding a effervescent tablet into powder increases the rate of reaction due to increased

a)

concentration

b)

surface area

c)

temperature

d)

reactants

116.

How could we make this reaction happen more quickly?

a)

Decrease the concentration of the acid

b)

crush the chalk to increase the surface area

c)

Put the test tube in an ice bath

117.
What is the rate of reaction?
a)
How fast a reaction is 
b)
How big a reaction is
c)
How loud a reaction is
d)
How much gas a reaction produces
118.

When we investigate the rate of reaction we are looking at the...

a)

amount of product formed

b)

speed of reaction

c)

concentration of reacting particles

d)

combining reactants with products

119.
Which factors increase the rate of a reaction.
a)
increasing temperature
b)
increasing concentration
c)
increasing surface area
d)
all of these
120.
To slow down a chemical reaction you will do one of the following:
a)
Place the reactants in hot water
b)
Place the products in ice bath
c)
Place the reactants in a ice bath
d)
Keep stirring the reactants with a stirring rod
121.

When surface area is decreased the rate of reaction...

a)

Decreases, because there are LESS possible sites for correct collisions

b)

Increases, because there are LESS possible sites for correct collisions

c)

Decreases, because there are MORE possible sites for correct collisions

d)

Increases, because there are MORE possible sites for correct collisions

122.

What piece of evidence for Continental Drift states that the continents fit together like puzzle pieces?

a)

Continent Shape

b)

Fossil/Climate Evidence

c)

Landform/Rock Evidence

d)

Glacial Evidence

123.

What piece of evidence for Continental Drift states that the same plant and animal fossils are found on continents separated by oceans.

a)

Continent Shape

b)

Fossil/Climate Evidence

c)

Landform/Rock Evidence

d)

Glacial Evidence

124.

What piece of evidence for Continental Drift states that similar types and ages of rocks are found on different continents?

a)

Continent Shape

b)

Fossil/Climate Evidence

c)

Landform/Rock Evidence

d)

Glacial Evidence

125.

What piece of evidence for Continental Drift states that glacial deposits and glacial scarring are found on continents with warm climates today.

a)

Continent Shape

b)

Fossil/Climate Evidence

c)

Landform/Rock Evidence

d)

Glacial Evidence

126.

What is the process of magma pushing up through a mid-ocean ridge, forming new crust, and pushing continents apart called?

a)

seafloor spreading

b)

seafloor growing

c)

volcanic volleyball

127.

What is the process of magma in the mantle rising and cooling and sinking and warming that causes the continents to move?

a)

a tiny mouse running on a wheel

b)

magma wheel

c)

convection currents

128.

In what layer of Earth do convection currents happen?

a)

crust

b)

mantle

c)

outer core

d)

inner core

129.

The remains or traces of ancient life are called ____________.

a)

bones

b)

remanents

c)

fossils

d)

none of the above

130.

What are the three types of Evidence that supports Alfred Wegener's Theory?

a)

Fossils, Fish, and Land

b)

Sedimentary, Magma, and Climate

c)

Fossils, Land forms, and Climate

d)

Climate, Land forms, and Metamorphic rock

131.

What was Wegener’s continental drift idea?

a)

The continents have moved slowly apart to their current locations.

b)

The continents have always been located at their current locations.

c)

The continents are moving slowly together from their current locations.

d)

None of these

132.

What is the force that moves the continents?

a)

Conduction

b)

Convection

c)

Radiation

d)

Conveyor belts

133.

Originally the Continental drift theory was not well received by other scientist. Why?

a)

There was a competing theory at the time that was more believable.

b)

There was no data showing the continents ever moved.

c)

The scientists did not know the force responsible for moving the continents.

d)

The scientist presenting the data was unreliable.

134.

What evidence did Wegener use to support his theory?

a)

Continents and fossils fitting together/matching-up like puzzle pieces

b)

glacier scars and other climate evidence from temperature

c)

mountain ranges and rocks line up across continents

d)

all of the above

135.

Who is the scientist who proposed Continental Drift Theory?

a)
Albert Einstein
b)
Alfred Wegener
c)
Isaac Newton
d)
John Dalton
136.
A location where two tectonic plates collide is known as a _________ boundary.
a)
Convergent
b)
Divergent
c)
Transform
d)
Spreading
137.

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

a)

Crust

b)

Mantle

c)

Inner Core

d)

Outer core

138.

What is the correct order (starting from the surface) of Earth’s layers?

a)

crust, outer core, inner core, mantle

b)

mantle, outer core, inner core, crust

c)

crust, mantle, outer core, inner core

d)

outer core, inner core, crust, mantle

139.
What is an earthquake?
a)
When the earth causes an upward thrust in the epicenter.
b)
When the earth moves up and down along the ocean floor.
c)

When tectonic plates slide against each other causing the earth to move. 

d)
None of the above
140.

An opening on the Earth's crust through which hot molten rock flows out from deep inside the Earth.

a)

Volcano

b)

Fault line

c)

Fold

d)

Crater

141.
What causes tectonic plates to move along the Earth's surface?
a)
wind
b)
ocean currents
c)
convection in the mantle
d)
expansion of the Earth
142.
What forms at a divergent boundary between two oceanic plates?
a)
rift valley
b)
mountain
c)
mid-ocean ridge
d)
trench
143.
What is a tectonic plate?
a)
A piece of the Earth's crust
b)
A piece of Earth's mantle
c)
A piece of Earth's core
d)
A piece of Earth's Moon
144.
Which of these is a key piece of evidence of contiental drift?
a)
Continent shapes
b)
Fossil record
c)
Rock layers
d)
All of the above
145.

Describe the most likely relationship between these mountains and nearby tectonic plates.

a)

The mountains are probably formed by earthquakes

b)

The mountains are probably formed by the movement of glaciers

c)

The mountains are probably located near the edge of 2 tectonic plates.

d)

The mountains are probably formed by running water.

146.

Is there a pattern to the locations of earthquakes and volcanoes around the globe?

a)

No, earthquakes and volcanoes are random.

b)

Yes, earthquakes and volcanoes usually occur near the boundaries of tectonic plates.

c)

yes, earthquakes and volcanoes usually occur in the middle of tectonic plates.

d)

No, earthquakes and volcanoes usually occur under water.

147.
What is it called when a gas turns into a liquid?
a)
evaporation
b)
freezing
c)
boiling
d)
condensation
148.
What is the constant motion of water condensing and evaporating all around us called?
a)
aquatic cycle
b)
water migration
c)
distillation apparatus
d)
water cycle
149.
Moisture that falls from clouds to Earth’s surface. EX: Rain, snow, hail, sleet
a)
Evaporation
b)
Precipitation
c)
Condensation
d)
Run off
150.
Water that travels from its location of precipitation towards the ocean on Earth’s surface.
a)
Ground water
b)
Run off
c)
Precipitation
d)
Transpiration
151.
Water that is soaked and stored into the ground.
a)
Run off
b)
Ground water
c)
Transpiration
d)
Evaporation
152.

The "windpipe" is known as the

a)

alveoli

b)

esophagus

c)

trachea

d)

bronchi

153.

Which properly describes inhalation?

a)

ribs go down and out

b)

pressure is low causing air to rush in

c)

pressure is high causing air to rush in

d)

volume is low

154.

When you exhale, the diaphragm

a)

moves upwards

b)

moves downwards

c)

flattens

d)

none of the above

155.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
156.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
157.

Respiration takes place in

a)

the cells

b)

the lungs

c)

the heart

d)

the brain

158.

Is respiration the same as breathing?

a)

Yes

b)

No

159.

For respiration to take place glucose needs to react with substance A. Select substance A.

a)

Carbon dioxide

b)

Water

c)

Oxygen

d)

Ozone

160.

When respiration takes place, energy is produced along with another two substances B and C. Select substances B and C.

a)

Carbon dioxide

b)

Water

c)

Oxygen

d)

Ozone

161.

A foreign body traveling through space was captured by the Earth's gravity and remains in orbit.

a)

Daughter theory

b)

Sister Theory

c)

Collison Theory

d)

Capture Theory

162.

When the Earth was young a collision occurred with molten rock the size of Mars and flung the material out into orbit and the material collected became the moon.

a)

Collison Theory

b)

Daughter Theory

c)

Sister Theory

d)

Capture Theory

163.

The moon formed separately at the same time at the Earth.

a)

Capture Theory

b)

Sister Theory

c)

Daughter Theory

d)

Collison Theory

164.

During the formation of the Earth, the Earth spun so fast that the moon was thrown away from the forming Earth and the moon developed.

a)

Collison Theory

b)

Daughter Theory

c)

Sister Theory

d)

Capture Theory

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8th Grade