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Year 10 Science - General - Exam preparation 2023

Total questions: 111

Worksheet time: 2hrs 37mins

Name
Class
Date
1.

What is the concentration of nitrogen gas in the air?

a)

78%

b)

21%

c)

approximately 1%

d)

0.04%

2.

What is the concentration of oxygen gas in the air?

a)

78%

b)

21%

c)

approximately 1%

d)

0.04%

3.

What is the concentration of carbon dioxide gas in the air?

a)

78%

b)

21%

c)

approximately 1%

d)

0.04%

4.

What is the chemical formula of nitrogen gas?

a)

NO2NO_2  

b)

N2N_2  

c)

O2O_2  

d)

CO2CO_2  

5.

What is the chemical formula of oxygen gas?

a)

NO2NO_2  

b)

N2N_2  

c)

O2O_2  

d)

CO2CO_2  

6.

What is the chemical formula of carbon dioxide gas?

a)

NO2NO_2  

b)

N2N_2  

c)

O2O_2  

d)

CO2CO_2  

7.

Which two chemical substances are needed for photosynthesis?

a)

Carbon dioxide

b)

Water

c)

Glucose

d)

Oxygen

8.

Which two chemical substances get produced during photosynthesis?

a)

Carbon dioxide

b)

Water

c)

Glucose

d)

Oxygen

9.

Where does the energy for photosynthesis come from?

a)

From the soil

b)

From the plant

c)

Sunlight

d)

It's magic!

10.

Which is a 'waste product' of photosynthesis?

a)

CO2CO_2  

b)

H2OH_2O  

c)

Sunlight

d)

O2O_2  

11.

Which two substances are needed to make sugar molecules?

a)

CO2CO_2  

b)

H2OH_2O  

c)

Sunlight

d)

O2O_2  

12.

During photosynthesis, 6 molecules of which substances are needed and produced? Select all the correct answers.

a)

CO2CO_2  

b)

H2OH_2O  

c)

Sunlight

d)

O2O_2  

13.

Identify the correct chemical formula of glucose.

a)

CO2CO_2  

b)

  C6H12O6C_6H_{12}O_6  

c)

C12O12H12C_{12}O_{12}H_{12}  

d)

  C6H6O6C_6H_6O_6  

14.

Identify the correct chemical formula of glucose.

a)

CO2CO_2  

b)

  C6H12O6C_6H_{12}O_6  

c)

C12O12H12C_{12}O_{12}H_{12}  

d)

  C6H6O6C_6H_6O_6  

15.

Which of the soils below is a sandy soil?

a)

b)

c)

16.

Which of the soils below contains a lot of organic matter (decomposed plant material)?

a)
b)
c)
17.

Which of the soils below does not contain lots of nutrients?

a)
b)
c)
18.

Which of the soils below does not contain lots of nutrients?

a)
b)
c)
19.

Identify the doughnut-shaped structures in the picture.

a)

Leaves

b)

Stomata

c)

Plant cells

d)

Mosses

20.

What information about stomata and their role is correct? Select all the correct answers.

a)

Regulate the uptake of carbon dioxide.

b)

Close to prevent water loss.

c)

Are small pores in the epidermis of leaves.

d)

Defend against pathogens.

21.

Why does it make sense to have more stomata on the underside of leaves? Select the best answer.

a)

Reduces the amount of dust that gets into the leaf.

b)

It prevents water from entering the leaves when it rains.

c)

Reduces the amount of water that is lost.

d)

There is more carbon dioxide at the underside of leaves.

22.

Since leaves lose water through the stomata. What would be correct about a plant in a dry environment? Select all correct answers.

a)

Has more stomata.

b)

Only has stomata on the upper side of leaves.

c)

Fewer stomata.

d)

Most or all stomata on the underside of leaves.

23.

Does water move from the soil to the leaves while stomata are closed?

a)

Yes. There are small pumps in plants.

b)

No. Stomata need to be open for transpiration to occur.

24.

What is it called when water evaporates from the surface of leaves?

(a)  

25.

Which gases would be present in every leave at all times? Select all the correct answers.

a)

Carbon dioxide

b)

Water vapour

c)

Oxygen gas

d)

Xenon gas

26.

Biotic factors are

a)

Living

b)

nonliving

27.

Abiotic factors

a)

living

b)

nonliving

28.

Choose all the abiotic factors listed

a)

water

b)

mates

c)

space

d)

temperature

e)

predators

29.

Choose all the biotic factors listed

a)

sunlight

b)

food

c)

predators

d)

disease

e)

water

30.

What abiotic factor would plants compete for?

a)

Food

b)

Sunlight

c)

Parasites

d)

predators

31.
a)

biotic

b)

abiotic

32.
a)

biotic

b)

abiotic

33.
a)

biotic

b)

abiotic

34.
a)

biotic

b)

abiotic

35.

What is the difference between the biotic and abiotic factors?

a)

Biotic factors are living things and abiotic factors are nonliving things.

b)

Biotic factors are nonliving things and abiotic factors are living things.

36.

What is a example of a ABIOTIC factor?

a)

Panda

b)

Bacteria

c)

Butterfly

d)

Weather

37.
Temperature, light, air, water, and soil are all  _____  parts of the environment
a)
alive
b)
biotic 
c)
abiotic
d)
living
38.

Temperature is an example of what kind of factor?

a)

biotic

b)

abiotic

c)

dead

d)

living

39.
What are the biotic factors in this image?
a)
sunlight, elephants, and grasses
b)
sunlight, water,  and air
c)
elephants, plants, trees 
40.

What are the ABIOTIC factors in this image?

a)

water

b)

sunlight

c)

birds

d)

grasses

e)

mud

41.

10.- What are the conditions that plants need to germinate?

a)

A) water, warmth, air

b)

B) water, sunlight, air

c)

C) water, sunlight, carbon dioxide

42.

The _____ stage in a plant's life cycle happens after germination when the young plant grows.

a)

seedling

b)

adult

c)

roots

d)

flower

43.

The small baby plant inside the seed is called ...

a)

... a shoot.

b)

... an embryo.

c)

... a leaf.

d)

... a root.

44.

Eventually, the growing plant bursts open through the seed coat in search of ...

a)

... light.

b)

... fresh air.

c)

... other plants.

d)

... shade.

45.

Nutrients are....

a)

candy

b)

food for the plant

c)

things plants get rid

d)

not good for plants

46.

Germination means . . . . . .

a)

seeds growing into flowers

b)

why seeds move from place to place

c)

how seeds stick in the ground

d)

when a seed begins to grow

47.

What do seeds need to germinate (grow into a new plant)? (You may select more than one answer)

a)

Air (oxygen)

b)

Water

c)

Warmth

d)

All answers

48.

Roots grow downward to anchor the seed.

a)

True

b)

False

49.

Besides the plant embryo, what else is inside the seed?

a)

Food, which it uses until it can make its own food.

b)

grass

c)

source of light

50.

What makes an avocado a fruit?

a)

An avocado contains a seed.

b)

An avocado is green.

c)

An avocado grows on a tree.

d)

An avocado are edible.

51.

Why is broccoli not a fruit?

a)

Broccoli does not contain seeds.

b)

Broccoli is not sweet.

c)

Broccoli is green with a flowery head.

d)

Broccoli can be eaten raw or cooked.

52.

Which is NOT part of a seed?

a)

seed coat

b)

embryo

c)

pollen

d)

food store

53.

Seed structure that grows become roots

a)

radicle

b)

plumule

c)

cotyledon

d)

endosperm

54.

Seed structure that grows to become leaves

a)

radicle

b)

plumule

c)

cotyledon

d)

endosperm

55.

Seed structure that stores nutrients

a)

radicle

b)

plumule

c)

testa

d)

endosperm

56.

Which of these is the first step in seed germination?

a)

The radicle grows downward and develops root hairs.

b)

The cotyledons open.

c)

The seed coat splits and the radicle emerges.

d)

The stem grows upward and pulls the cotyledons above the soil.

57.

Which of these is the second step in seed germination?

a)

The radicle grows downward and develops root hairs.

b)

The cotyledons open.

c)

The seed coat splits and the radicle emerges.

d)

The stem grows upward and pulls the cotyledons above the soil.

58.

Which of these is the third step in seed germination?

a)

The radicle grows downward and develops root hairs.

b)

The cotyledons open.

c)

The seed coat splits and the radicle emerges.

d)

The stem grows upward and pulls the cotyledons above the soil.

59.

Which of these is the last step in seed germination?

a)

The radicle grows downward and develops root hairs.

b)

The cotyledons open.

c)

The seed coat splits and the radicle emerges.

d)

The stem grows upward and pulls the cotyledons above the soil.

60.

What is the name for the part of the seed where the plant gets its energy to start growing?

a)

embryo

b)

cotyledon

c)

germination

d)

radicle

61.

Wind-pollinated and insect-pollinated flowers have special adaptations for their pollinators.

a)

True

b)

False

62.

Brightly colored flowers

a)

Insect-pollinated flowers

b)

Wind pollinated flowers

63.

Long filaments dangling outside the flower

a)

Insect-pollinated flowers

b)

Wind-pollinated flowers

64.
What part of the flower holds the pollen?
a)
stem
b)
anther
c)
pistil
d)
flower
65.

LOOK AT THE PICTURES

Which structure houses a plant's pollen prior to pollination?

a)

A

b)

B

c)

C

d)

D

66.

What can you infer about a brightly-colored flower?

a)

B

It has a greater chance of pollination than a dull-colored flower

b)

A

It can only be pollinated by birds, not insects

c)

C

Its pollen is probably the same bright color

d)

D

It is probably pollinated by an insect that is attracted to that color

67.

Pollen is to stamen as _____ is to pistil.

a)

A

Ovule

b)

B

Anther

c)

C

Honeybee

d)

D

Wind

68.

Name the floral rewards provided to animals that help in pollination.

a)

Nectar

b)

Pollen Grains

c)

Both 1 and 2

d)

None of these

69.

What helps pollen move form one plant to another?

a)

hummingbirds

b)

bees

c)

butterflies

d)

all of the above

70.

After being pollinated, a flower will produce a _______.

a)

seed

b)

another flower

c)

magic spell

d)

bird

71.

3. Why are flowers colourful?

a)

To attract insects for pollination

b)

To produce good seeds from the flowers

c)

To produce good fruits

d)

To help the plant making food

72.

10. A plant has big anthers that dangle out from the flower on long filaments. It has a long and hairy stigma. The pollen grains are most probably transferred by

a)

animals

b)

wind

c)

human

d)

water

73.
Animals disperse seeds by _________.
a)
eating seeds and dropping waste later on
b)
hiding seeds for late and not coming back for them
c)
catching seeds on their fur and carrying them to different places
d)
all of the above
74.

It is the spreading of seeds to other places.

a)

germination

b)

habitat

c)

seed dispersal

75.

How are dandelion seeds dispersed?

a)

by animals

b)

by explosion or bursting

c)

by wind

76.

The purpose of seed dispersal is for the seeds to __________.

a)

germinate at the same time

b)

move to the same place and grow

c)

move further away from the parent plant

d)

compete with one another for minerals in the soil

77.

How are raspberries dispersed?

a)

by animals

b)

by explosion or bursting

c)

by water

78.
I have parachute like structures. What is likely my dispersal method?
a)
wind
b)
water 
c)
animals
d)
explosive action
79.
I have hooks to cling to animal fur. What is likely my dispersal method?
a)
wind
b)
water 
c)
animals
d)
explosive action
80.
My pod splits open and seeds are thrown out with a force. What is likely my dispersal method?
a)
wind
b)
water 
c)
animals
d)
explosive action
81.

State the characters ideal for dispersion by wind.

a)

Small, light and hair-like

b)

Small, light and sharp hooks

c)

Big, light and fibrous husk

d)

Big, light and explode

82.

The purpose of seed dispersal is for the seed to ______.

a)

germinate at the same time

b)

move further away from the parent plant

c)

move to the same place and grow

d)

compete with one another for minerals in the soil

83.

How are stickers dispersed?

a)

fire

b)

wind

c)

animal

d)

water

84.

Why are bur seeds able to be dispersed by animals?

a)

It is light and has wing-like structure

b)

It has hooks to hook onto the fur of animals

c)

It has a fibrous husk that makes it float

d)

It has dry pods that split open

85.

All the following are the plants dispersal method except.......

a)

By wind

b)

By water

c)

By animals

d)

By explosion

e)

By fire

86.

Which particle holds the least amount of water?

a)

Clay

b)

Silt

c)

Sand

87.

What determines the amount of water the soil holds?

a)

The mineral particles

b)

Organic material

88.

Organic Material adds what to the soil?

a)

Minerals

b)

AIr

c)

Nutrients

89.

Identify number 1.

a)

Petal

b)

Sepal

c)

Stigma

d)

Stamen

90.

Identify number 2.

a)

Petal

b)

Sepal

c)

Style

d)

Stamen

91.

Identify number 3.

a)

Filament

b)

Sepal

c)

Style

d)

Anther

92.

Identify number 4.

a)

Filament

b)

Sepal

c)

Style

d)

Flower stalk

93.

Identify number 5.

a)

Ovary

b)

Sepal

c)

Style

d)

Flower stalk

94.

Identify number 6.

a)

Ovary

b)

Ovule

c)

Style

d)

Flower stalk

95.

Identify number 7.

a)

Ovary

b)

Ovule

c)

Style

d)

Flower stalk

96.

Identify number 8.

a)

Ovary

b)

Ovule

c)

Style

d)

Stigma

97.

Identify number 9.

a)

Ovary

b)

Ovule

c)

Style

d)

Stigma

98.

Identify the structure labelled #1.

a)

Anther

b)

Pistil

c)

Style

d)

Stamen

99.

Identify the structure labelled #2.

a)

Anther

b)

Pistil

c)

Style

d)

Stamen

100.

What is the scientific term for the female gametes in plants?

a)

Ovule

b)

Egg

c)

Sperm

d)

Pollen

101.

What is the scientific term for the male gametes in plants?

a)

Ovule

b)

Egg

c)

Sperm

d)

Pollen

102.

Pollen in plants is the same as ... in animals.

a)

Ovule

b)

Egg

c)

Sperm

d)

Pollen

103.

Ovules in plants is the same as ... in animals.

a)

Ovule

b)

Eggs

c)

Sperm

d)

Pollen

104.

This is where the pollen gets deposited.

a)

Stigma

b)

Filament

c)

Style

d)

Anther

105.

This is where the pollen gets produced.

a)

Stigma

b)

Filament

c)

Style

d)

Anther

106.

This is the structure that holds the anther.

a)

Stigma

b)

Filament

c)

Style

d)

Anther

107.

This is the structure that connects the stigma to the ovary.

a)

Stigma

b)

Filament

c)

Style

d)

Anther

108.

This is the structure that supports and displays the flower.

a)

Petal

b)

Sepal

c)

Flower stalk

d)

Ovary

109.

The coloured parts that attracts animals to allow pollination.

a)

Petal

b)

Sepal

c)

Flower stalk

d)

Ovary

110.

The part that covers the flower in the bud.

a)

Petal

b)

Sepal

c)

Flower stalk

d)

Ovary

111.

The part that produces the effs and encloses the seeds when they form.

a)

Petal

b)

Sepal

c)

Flower stalk

d)

Ovary

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