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Worksheets

All about science

Total questions: 183

Worksheet time: 2hrs 56mins

Name
Class
Date
1.

Review the chart. Which animal has the shortest gestation period?

a)

A giraffe

b)

An elephant

c)

A sheet

d)

A wolf

2.

How long is a typical pregnancy in an elephant?

a)

12 months

b)

22 months

c)

24 months

d)

30 months

3.

How long do baby kangaroos (joeys) stay in their mothers' pouch?

a)

3 months

b)

4 months

c)

5 months

d)

6 months

4.

What is the gestation time of a cat?

a)

2 months

b)

3 months

c)

4 months

d)

5 months

5.

What is the gestation time for a cow?

a)

6 months

b)

8 months

c)

9 months

d)

12 months

6.

What is the gestation period for a koala?

a)

1 month

b)

2 months

c)

3 months

d)

4 months

7.

What is a baby eel called?

a)

elver

b)

larvae

c)

fingerling

d)

alevin

8.

What is the gestation period of an orca?

a)

9 months

b)

12 months

c)

18 months

d)

24 months

9.

What is a similar size to a newborn panda?

a)

newborn kitten

b)

jellybean

c)

banana

10.

What is a baby hedgehog called?

a)

pup

b)

piglet

c)

hoglet

11.

What is the gestation period of a harvest mouse?

a)

14 days

b)

18 days

c)

24 days

12.

What is a baby platypus called?

a)

puggle

b)

seal

c)

pup

d)

calf

13.

What is the average length of pregnancy for a giraffe?

a)

9 months

b)

12 months

c)

15 months

d)

18 months

14.

How long do baby orangutans breastfeed for?

a)

2 years

b)

5 years

c)

8 years

15.

How much milk does a blue whale mother produce in one day?

a)

40 litres

b)

80 litres

c)

190 litres

16.

How much weight does a blue whale calf gain in one day?

a)

100lbs

b)

175lbs

c)

250lbs

17.

What is a baby pig called?

a)

piglet

b)

shoat

c)

farrow

18.

How many weeks of pregnancy is Taylen at?

a)

34 week

b)

36 weeks

c)

38 weeks

19.

What is the average gestation period of an elephant?

a)

18 months

b)

21 months

c)

10 months

d)

28 days

20.

What is the gestation period of a house mouse?

a)

20 days

b)

3 months

c)

7 days

d)

30 days

21.

What is the gestation period of an opossum?

a)

20 days

b)

13 days

c)

7 days

d)

30 days

22.

What is the gestation period of an koala?

a)

34 days

b)

13 days

c)

2 months

d)

3 months

23.

What is the gestation period of a lion?

a)

108 days

b)

1 year

c)

90 days

d)

300 days

24.

What is the gestation period of a donkey?

a)

1 year

b)

6 months

c)

9 months

d)

1.5 years

25.

What is the gestation period of a wolf?

a)

3 months

b)

6 months

c)

9 months

d)

1.5 years

26.

What is the gestation period of a panda?

a)

5 months

b)

2 months

c)

9 months

d)

1.5 years

27.

What is the gestation period of an orca?

a)

532 days

b)

270 days

c)

600 days

d)

150 days

28.

What is the gestation period of a gerbil?

a)

24 days

b)

10 days

c)

60 days

d)

80 days

29.

Which animal has a longer gestation period?

a)

human

b)

wolf

c)

sheep

d)

horse

30.

Which animal has a longer gestation period?

a)

giraffe

b)

elephant

c)

horse

d)

human

31.

Gestation period means

a)

mother

b)

pregnancy

c)

mammal

d)

life cycle

32.

Which animal has the shortest gestation period?

a)

wolf

b)

sheep

c)

human

d)

horse

33.

This is a math question. What is the difference in the gestation period for a human and a sheep?

a)

521

b)

215

c)

125

d)

425

34.

This is a math question. What is the difference in the gestation period for an elephant and a giraffe?

a)

1064

b)

214

c)

294

d)

194

35.

The length of time between fertilization and birth is called...

a)

budding

b)

sexual reproduction

c)

asexual reproduction

d)

gestation period

36.

Internal fertilization occurs inside the female's body.

a)

true

b)

false

37.

Offspring from asexual reproduction have different DNA than the parents.

a)

true

b)

false

38.

Sexual reproduction requires a mate.

a)

true

b)

false

39.

External fertilization usually occurs...

a)

in water

b)

in the female's body

c)

very quickly

d)

with only one parent

40.

What type of reproduction requires only one parent?

a)

internal

b)

external

c)

asexual

d)

sexual

41.

What is the process of an offspring growing out of a parent and breaking off?

a)

polyp

b)

medusa

c)

budding

d)

gestation

42.

One parent quickly producing many offspring is an advantage of...

a)

asexual reproduction

b)

sexual reproduction

43.

Parents must find a mate is a disadvantage of...

a)

asexual reproduction

b)

sexual reproduction

44.

Fertilization can occur ___________the female's body.

a)

only inside

b)

only outside

c)

both inside and outside

d)

only in animals

45.
How many stages are there in the butterfly life cycle?
a)
6
b)
4
c)
3
d)
5
46.
What is the stage of the caterpillar called?
a)
pupa
b)
adult
c)
egg
d)
larva
47.

What is a baby plant called?

a)

seedling

b)

string

c)

twig

d)

acorn

48.

The stages of growth for all organisms

a)

Life Cycle

b)

Pupa

c)

Nymph

d)

Metamorphosis

49.

What does this picture show?

a)

eggs

b)

A tadpole

c)

A frog

50.

What is this picture?

a)

A tadpole

b)

eggs

c)

A frog

51.

What is this picture?

a)

A frog

b)

A tadpole

c)

Eggs

52.
How does an adult bird care for eggs in the nest?
a)
by cleaning them
b)
by keeping them warm
c)
by cracking them open
53.
What do we call stage 3 of the butterfly life cycle?
a)
egg
b)
larva
c)
pupa
54.
Which animal is an insect?
a)
ladybug
b)
monkey
c)
frog
55.
A caterpillar changes into what?
a)
chrysalis
b)
cocoon
c)
butterlfy
d)
frog
56.
What is the first stage of a plant life cycle?
a)
Seedling
b)
Adult Plant
c)
Adult Plant with Flowers
d)
Seed
57.

Plants and animals both have life cycles.

a)

True

b)

False

58.

What is the first stage in the life cycle of most animals?

a)

Egg

b)

Adult

c)

Larva

59.
The caterpillar makes a _________.
a)
chrysalis
b)
egg
c)
adult butterfly
d)
caterpillar
60.
What is another word for the change a butterfly goes through?
a)
larva
b)
metamorphosis
c)
adult
d)
life cycle
61.

To migrate means:

a)

to stay inside for the winter

b)

to travel far distances

62.

What does transformation mean?

a)

grow older

b)

sleep

c)

remove

d)

change

63.

How many miles do Monarch butterflies migrate?

a)

3000 miles

b)

3 miles

c)

30 miles

d)

3 million miles

64.

Monarch butterflies migrate to

a)

Mexico

b)

Antartica

c)

the moon

d)

Australia

65.

A series of stages a living thing goes through during its life is called the

a)

life cycle

b)

germination

c)

seedling

d)

larvae

66.

Changing forms dramatically over the course of a life cycle is called

a)

life cycle

b)

metamorphosis

c)

hydrations

d)

pollinations

67.

a small object produced by a female animal that contains a baby animal.

a)

seed

b)

shell

c)

frog

d)

egg

68.

a warm-blooded vertebrate animal that produces milk to feed their young, gives birth to live babies and is covered with fur or hair. Cats, horses, whales and humans are examples.

a)

mature

b)

animal

c)

mammal

d)

reproduce

69.
How many stages are there in the butterfly life cycle?
a)
6
b)
4
c)
3
d)
5
70.
What is this picture?
a)
A tadpole
b)
eggs
c)
A froglet
d)
A frog
71.

What is this picture?

a)

A froglet

b)

Eggs

c)

A tadpole

d)

An adult frog

72.

What is this picture?

a)

An Adult Frog

b)

A tadpole

c)

Eggs

d)

A froglet

73.
A frog changes during its life through a process called____________
a)
metamorphosis
b)
egg
c)
tadpole
d)
adult
74.

What is the life cycle?

a)

The way an animal moves.

b)

The changes an animal goes through as it grows.

c)

The way an animal dies.

75.

Which stage is the first stage of the human life cycle?

a)

baby

b)

child

c)

teenager

d)

adult

76.

The life cycle of the frog has how many stages?

a)

1

b)

2

c)

3

d)

4

77.

What is the last stage of the human life cycle?

a)

child

b)

baby

c)

adult

d)

teenage

78.

Which stage are you now in your life?

a)

baby

b)

child

c)

teenager

d)

adult

79.

Every animals has the same life cycle.

a)

true

b)

false

80.

which is true about most young animal and their parent ?

a)

Young animal have parts like their parents

b)

young animal grow to look like their parent

c)

young animal are bigger than their parents

81.

yousef sees young animal that has a shell on its body . what will the young animal parent likely have

a)

Fur

b)

shell

c)

scale

82.

emmy sees two horses that are the same kind, but they do not look exactly alike . how might they be different

a)

they both different in size

b)

they have different number of legs

c)

they both have different body covering

83.

the animals of the same kind have different body parts

a)

true

b)

false

84.

young chicks will grow and will not have the same color of the body covering of its parent

a)

True

b)

False

85.

The ______________ carries water and nutrients. It also supports the plant.

a)

roots

b)

stem

c)

leaves

d)

flower

86.

The gas exchange and food production take place in the ________.

a)

Roots

b)

Stem

c)

Leaves

d)

Flower

87.

These hold the plant in place and take in water and nutrients.

a)

roots

b)

stem

c)

leaves

d)

flowers

88.

These attract pollinating insects.

a)

roots

b)

stem

c)

leaves

d)

flowers

89.

Which of the following absorbs sunlight for the plant?

a)

roots

b)

stem

c)

leaves

d)

flowers

90.

The flower produces seeds and pollen so the plant can reproduce and continue the life cycle.

a)

True

b)

false

91.

Click on all of the stages of a plant life cycle.

a)

Egg

b)

seed

c)

seedling

d)

mature plant

92.

Seeds have to be ______________ to a new place where they can grow and have plenty of space.

a)

absorbed

b)

dispersed

c)

germinated

d)

deposited

93.

Click on all the ways a seed can be dispersed.

a)

Wind can blow a seed.

b)

Roots gathering seeds.

c)

Stems carrying seeds.

d)

Animals eating seeds and depositing them elsewhere

e)

Seeds floating on water.

94.

Click on all things that are true about a flowering plant.

a)

Have spores to continue the life cycle

b)

Have flowers

c)

Produce seeds to continue the life cycle

95.

Click on 3 things that are environmental factors that affect a plant.

a)

temperature

b)

nutrition

c)

shape of leaf

d)

color

e)

exposure to sunlight

96.

The main parts of a plant are...

a)

the roots, the leaves and the pistill.

b)

the roots, the stems and the branches.

c)

the roots, the leaves and the stem.

d)

the roots, the leaves and thick

97.

Herbaceous stems are...

a)

soft and flexible.

b)

hard and regid.

c)

hard and flexible.

d)

hard and thick.

98.

Leaves are classified according to their...

a)

colour.

b)

shape.

c)

shape and edge.

d)

size.

99.

Gymnosperms...

a)

are non-flowering plants.

b)

do not produce fruits.

c)

do not produce seeds.

d)

do not produce food.

100.

The female part of a plant is...

a)

the pistil.

b)

the calyx.

c)

the corolla.

d)

the stamen.

101.

Plants respond to changes in the enviroment because they have...

a)

roots.

b)

sensitivity.

c)

stamens.

d)

pistils.

102.

The process by which plants make their own food is called

a)

transpiration.

b)

respiration.

c)

carbon dioxide.

d)

photosynthesis.

103.

There are two main groups of flowering plants...

a)

mosses.

b)

angiosperms and gymnosperms.

c)

mosses and gymnosperms.

d)

angiosperms and ferns.

104.

Angiosperms usally have beautiful flowers and...

a)

produce fruit with seeds insaid.

b)

seeds grouped together in cones.

c)

have leaves all year round.

d)

make their own food.

105.

Non- flowering plants have rhizoids which..

a)

fix the plant to the soil.

b)

feed the plant.

c)

produce the seeds.

d)

make their own food.

106.

Which type of plant is this

a)

climber

b)

tree

c)

creeper

d)

shrub

107.

What type of a plant is this?

a)

tree

b)

creeper

c)

shrub

d)

herb

108.

what type of plant is this

a)

tree

b)

herbs

c)

shrub

d)

creeper

109.

What type of Plant is this

a)

tree

b)

climber

c)

creeper

d)

shrub

110.

Big and tall plants are called

a)

shrubs

b)

herbs

c)

trees

d)

bushes

111.

Plants having weak stems and grow along the ground are called

a)

shrubs

b)

climbers

c)

creepers

d)

herbs

112.

which plant is not a herb

a)

hibiscus

b)

coriander

c)

mint

d)

basil or tulsi

113.

which plant grows in water

a)

apple

b)

rose

c)

mint

d)

lotus

114.

Which insectivorous plant is this?

a)

Sundew plant

b)

Venus Flytrap

c)

Pitcher plant

d)

Jaw plant

115.

Shrubs are

a)

small plants with woody stems

b)

small plants with green stems

c)

plants with trunks

d)

plants with hooks

116.

plants give us

a)

fruits and vegetables

b)

furniture

c)

medicines

d)

all of these

117.

perfumes are made from

a)

eucalyptus

b)

neem

c)

rose

d)

bottle gourd

118.

we should buy fruits and vegetables from local markets because

a)

we get the fresh produce

b)

we get it in good price

c)

the local farmers are benefitted

d)

all of these

119.

We breathe in pure air called

a)

nitrogen

b)

carbon dioxide

c)

Oxygen

d)

methane

120.

the process by which plants make their own food is called

a)

photosynthesis

b)

genesis

c)

food preparation

d)

chlorogenesis

121.

The green pigment present in the leaves is called

a)

methophyll

b)

chlorophyll

c)

cyanophyll

d)

asthophyll

122.

People use them to decorate houses.

a)

ornamental

b)

food

c)

industrial

123.

People use these plants to heal illnesses.

a)

food

b)

industrial

c)

medicinal

124.
a)

ornamental

b)

medicine

c)

food

125.

Which of the following is not a shrubs?

a)

Hibiscus

b)

Rose

c)

Apple

d)

Lantana

126.

LET'S FIND THE CORRECT ANSWER!

a)

BRAIN

b)

BRIAN

127.

LET'S FIND THE CORRECT ANSWER!

a)

HERAT

b)

HEART

128.

LET'S FIND THE CORRECT ANSWER!

a)

LUNGS

b)

LUGNS

129.

LET'S FIND THE CORRECT ANSWER!

a)

LIVER

b)

LIREV

130.

LET'S FIND THE CORRECT ANSWER!

a)

BOSEN

b)

BONES

131.

LET'S FIND THE CORRECT ANSWER!

a)

KIDNEYS

b)

KIDYENS

132.

LET'S FIND THE CORRECT ANSWER!

a)

INTESTIENS

b)

INTESTINES

133.

BRAIN: TO THINK

a)

TRUE

b)

FALSE

134.

LUNGS: TO PUMP BLOOD

a)

FALSE

b)

TRUE

135.

LIVER: TO STORE GLUCOSE

a)

TRUE

b)

FALSE

136.

What organ is this?

a)

The brain

b)

The heart

c)

The lungs

d)

The kidneys

137.

What organ is this?

a)

The heart

b)

The lungs

c)

The kindneys

d)

The stomach

138.

What organ(s) are these?

a)

The kidneys

b)

The liver

c)

The heart

d)

The lungs

139.

What organ is this?

a)

The lungs

b)

The liver

c)

The brain

d)

The kidneys

140.

What organ is this?

a)

The liver

b)

The heart

c)

The kidneys

d)

The brain

141.

What organ(s) are these?

a)

The brain

b)

The kidneys

c)

The liver

d)

The lungs

142.

Which organ is responsible for thinking, memories, and telling other parts of your body what to do?

a)
b)
c)
d)
143.

Which organ is responsible for bringing air, in and out of your body?

a)
b)
c)
d)
144.

Which organ is responsible for breaking down and digesting your food?

a)
b)
c)
d)
145.

Which organ is responsible for cleaning your blood?

a)
b)
c)
d)
146.

Which organ is responsible for filtering your blood?

a)
b)
c)
d)
147.

Pollution ___.

a)

can be from a known or unknown source

b)

occurs at a greater rate than fixable by the environment through equilibria and negative feedback

c)

is only matter such as plastics and litter on the sides of roads

d)

affects organisms forced to live with the pollution

148.

Which of the following is NOT considered pollution?

a)

microplastics in wastewater from fleece being washed in washing machine

b)

grass planted for a soccer field where a forest was

c)

light from hotels, casinos, and entertainment places on "The Strip" in Las Vegas

d)

green crabs (native to the NE part of the US) increasing in population in the San Francisco Bay and crowding out native crabs

149.

Pollution that comes from many sources rather than from a single, specific site is considered.

a)

Point Source Pollution

b)

Acute Pollution

c)

Non-point Source Pollution

d)

Persistent Organic Pollutant (POP)

150.

If you find no insects at all in a pond or stream, what can you conclude?

a)

Very Polluted

b)

Slightly Polluted

c)

Little or No pollution

d)

Medium Polution

151.

Toxins pass from tissues in one organism to another through a food chain/web. This is called ___.

a)

secondary pollution

b)

bioaccumulation

c)

biodegradable pollution

d)

chronic pollution

152.

Waste matter that contaminates the water or air or soil.

a)

Pesticides

b)

Landfills

c)

Habitat

d)

Pollutant

153.

Humans are ingesting plastic that has ended up in the ocean. How is this possible?

a)

The tiny plastic particles in the ocean end up coming through the faucets in our sinks once the salt water is converted to fresh water.

b)

The fish in the ocean eat the plastics and humans eat the fish, causing the toxic chemicals from the plastics to spread from the fish to humans.

c)

Humans are mistaking plastics in the ocean for food just as the marine life and sea birds are.

d)

All of the above.

154.
Wastes produced by agriculture, households, industry, mining, and other human activities can end up in ______________.
a)
groundwater
b)
streams and rivers
c)
oceans
d)
All of these choices
155.

Pollutants are introduced into surface or ground water without a specific location source. This is considered ___ pollution.

a)

point source

b)

non-point source

c)

secondary

d)

biodegradable

156.

A factory dumps extremely hot water into a river. This changes the amount of dissolved oxygen available to living things in the river. How would this pollution be classified?

a)

point source pollution

b)

non-point source pollution

c)

runoff pollution

d)

sewage pollution

157.

Carbon monoxide (CO) is a pollutant when it is emitted. This is an example of ___.

a)

secondary pollutant

b)

primary pollutant

c)

direct pollutant

d)

indirect pollutant

158.

Acid rain (sulfuric acid, H2SO4) forms after sulfur trioxide (SO3) reacts with water (H2O). This is an example of ___.

a)

secondary pollutant

b)

primary pollutant

c)

direct pollutant

d)

indirect pollutant

159.

Some pollutants, such as sewage or soap molecules, can be broken down by decomposers or physical processes (such as sunlight or heat). These pollutants are considered ___.

a)

primary pollutants

b)

chronic pollutants

c)

persistent organic pollutants

d)

biodegradable pollutants

160.

Changing human activity to stop pollution before it occurs, regulating or preventing the release of pollutants, and cleaning up or restoring damaged ecosystems are types of ___.

a)

pollution management strategies

b)

environmental value systems (EVS)

c)

sustainability strategies

d)

equilibria systems

161.
Most water pollution is the result of
a)
human activities.
b)
drought.
c)
volcanic eruptions.
d)
storms.
162.

Most air pollution is visible to humans.

a)

False

b)

True

163.

What are two possible negative effects of using landfills?

a)

wind can carry garbage out of the landfill and into bodies of water

b)

drinking water can be contaminated by leachate

c)

nutrients improve soil quality

d)

recycling increases

164.

Which statistic is most closely related to climate?

a)

Average yearly snowfall in Denver is 55 inches

b)

Last February was unusually warm in the Northeast

c)

There is an ongoing drought in central Georgia

d)

Wind speeds in Chicago topped 30 mph today.

165.

Which saying best describes the greenhouse effect's impact on our planet?

a)

You can't get enough of a good thing.

b)

A rising tide lifts all boats.

c)

Everything in moderation.

d)

None of the above.

166.

If Earth is like a greenhouse, carbon gases in the atmosphere are like the:

a)

Plants

b)

Glass

c)

Sun

d)

Ground

167.

How will next year's average global temperature compare to this year's average?

a)

It will be much higher.

b)

It will be somewhat lower.

c)

It will be exactly the same.

d)

It's impossible to predict.

168.

Which of the following individual actions would do the most to reduce atmospheric methane?

a)

Going vegan

b)

Planting a tree

c)

Riding the bus instead of driving a car

d)

Switching to rechargeable batteries

169.

Compared to historical trends, what is different about contemporary climate change?

a)

It's occurring faster.

b)

It's a warming trend.

c)

It's affecting plants and animals.

d)

It's caused by atmospheric changes.

170.

We can learn about the climate of different periods throughout history by studying what aspect of the bubbles trapped in ice core samples?

a)

The temperature of the air inside the bubbles.

b)

The average volume of the bubbles.

c)

The levels of different gases in the bubbles.

d)

The average pressure of the air inside the bubbles.

171.

As polar ice caps melt, which area would face the most significant immediate threat?

a)
b)
c)
d)
172.

"Global climate change" is preferred to "global warming" because temperature change may not be its most conspicuous effect. What can you infer is the meaning of "conspicuous"?

a)

Harmful

b)

Hidden

c)

Misleading

d)

Noticeable

173.

Which of these is an opinion about climate change?

a)

It is the most serious danger that humans face today.

b)

Many people believe it may cause species to go extinct.

c)

Burning fossil fuels has contributed to global warming.

d)

Earth's temperature has increased over the past century.

174.

Which of the following is an example of a nonrenewable resource?

a)
b)
c)
d)
175.

Which of these is an opinion about deforestation?

a)

It can cause animals to lose their habitats

b)

It's a serious crisis that our government should try to stop

c)

It happens because people use wood to make paper and lumber

d)

Deforestation destroys important sources of oxygen

176.

What can you conclude from the fact that the human population is so much larger today than it was 200 years ago?

a)

Most people chose not have children 200 years ago

b)

People 200 years ago killed one another frequently

c)

People 200 years ago had better medicine than we do today

d)

People today live longer, healthier lives than 200 years ago

177.

The human population has experienced unchecked growth for the past 200 years. What does "unchecked" mean?

a)

slow

b)

at a steady rate

c)

unrestrained

d)

dangerous

178.

Which of the following is a true statement about recycling?

a)

Recycling allows resources to be reused, instead of dumped in landfills.

b)

Recycled products emit oxygen into the atmosphere.

c)

Recycling causes the earth to cool down, instead of warm up.

d)

Recycling turns non-renewable resources into renewable ones

179.

Place the following events in sequence: A) The world population reaches 7 billion; B) The Industrial Revolution begins; C) People begin packaging things in plastic

a)

C - B - A

b)

A - C - B

c)

B - A - C

d)

B - C - A

180.

What is one negative effect of landfills?

a)

global warming

b)

water pollution

c)

air pollution

d)

deforestation

181.

What do carbon dioxide and methane have in common?

a)

They are gases created when wood is burned

b)

They are gases that regularly escape from landfills

c)

They are gases that contribute to global warming

d)

They are examples of non-renewable resources

182.

Which of the following can decrease the use of fossil fuels?

a)

Turning your lights off when you're not using them.

b)

Recycling newspapers

c)

Cleaning up the garbage in your neighborhood.

d)

Turning up your thermostat whenever you feel chilly.

183.

What is one way that you can use your voice to make environmental changes? Choose the best answer.

a)

Ask your parents or guardians to use clean energy.

b)

Buy stuff with protective plastic packaging.

c)

Encourage your parents or guardians to drive cars to work, instead of taking buses or trains.

d)

Stop using all paper products.

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