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Week 2-4 Life Science Competition

Total questions: 39

Worksheet time: 20mins

Name
Class
Date
1.

All birds ______________________.

a)

can fly

b)

can make their own food

c)

has fur as their outer covering

d)

has feathers as their outer covering

2.

All insects_____________________.

a)

can make their own food

b)

has 3 body parts and 6 legs

c)

has 2 body parts and 8 legs

d)

has 2 legs and a beak

3.

Tick all boxes that are characteristics of living things.

a)

They respond to changes.

b)

They have an outer covering.

c)

They make their own food.

d)

They reproduce.

4.

Ferns are different from mushrooms because ________________.

a)

They respond to changes.

b)

They reproduce by spores.

c)

They can make their own food.

d)

They cannot be seen under a microscope.

5.

Flowering plants reproduce by ______________ but non-flowering plants reproduce by ______________.

a)

fruits........seeds.

b)

spores......seeds.

c)

seeds.....spores.

d)

fruits.....spores.

6.

The grasshopper has ___________ stages in its life cycle. They are the egg, ___________ and adult.

a)

3.....baby

b)

4....nymph

c)

3...nymph

d)

4.....larva

7.

The larva of a butterfly will shed its skin as it grows larger from eating. This process is called ___________.

a)

melting.

b)

moulting.

c)

moulding

d)

meowing.

8.

Insects whose young resemble their adults have _____ stages in its life cycle.

a)

3

b)

2

c)

4

9.

From the statement below, which word would you change to make the sentence true?


In the large intestine, water is absorbed from the digested food.

a)

large

b)

water

c)

digested

10.

Digestion ends at the _____________________.

a)

mouth

b)

small intestine

c)

stomach

d)

large intestine

e)

anus

11.

The ________________ of the cell controls all activities in the cell

a)

nucleus

b)

cell membrane

c)

cytoplasm

d)

cell wall

12.

The ________________ of the cell controls the movement of substances in and out of the cell

a)

nucleus

b)

cell membrane

c)

cytoplasm

d)

cell wall

13.

The ________________ of the cell gives the cell a fixed shape.

a)

nucleus

b)

cell membrane

c)

cytoplasm

d)

cell wall

14.

The plant cells that contain chlorophyll must have been taken from the ______________ of the plant.

a)

flower

b)

stem

c)

leaf

d)

root

15.

The lungs ___________________________________.

a)

pumps blood all around the body.

b)

pumps gas all around the body.

c)

is the site for gaseous exchange.

16.

The heart ___________________________________.

a)

pumps blood all around the body.

b)

pumps gas all around the body.

c)

is the site for gaseous exchange.

17.

The blood carries _________________________________________.

a)

water

b)

carbon dioxide

c)

oxygen

d)

digested food

e)

undigested food

18.

Blood from the arms are transported to the __________ before being transported to the ____________.

a)

lungs.....heart

b)

heart....lungs

19.

During a run, more blood is transported to the legs because the legs need __________________.

a)

more oxygen and digested food to produce more energy.

b)

more carbon dioxide and oxygen to produce more energy.

c)

more carbon dioxide and digested food to produce more energy.

20.

In the male human reproductive system, the ___________ produces ___________.

a)

sperms....testis

b)

testis.....sperms

c)

penis....sperms

21.

In the female reproductive system, the ______________ holds the ____________.

a)

egg....ovary

b)

ovary....eggs

c)

womb....ovary

22.

Pollination is the_________________________________________.

a)

transfer of pollen grain from stigma to anther

b)

fusing of the male and female sex cell.

c)

fusing of the pollen grain and stigma

d)

transfer of pollen grain from anther to stigma.

23.

Fertilisation is the_________________________________________.

a)

transfer of pollen grain from stigma to anther

b)

fusing of the male and female sex cell.

c)

fusing of the pollen grain and stigma

d)

transfer of pollen grain from anther to stigma.

24.

The pollen grains are produced by the _____________

a)

filament

b)

anther

c)

stigma

d)

style

25.

In flowering plants, ________________ takes place first. After that, ____________ takes place.

a)

fertilization......pollination

b)

pollination.....fertilization

26.

The __________________of the flower develops into a fruit.

a)

ovary

b)

ovule

c)

stigma

d)

style

27.

The number of seeds present in a fruit depends on the number of ______________ the flower had.

a)

ovary

b)

ovule

c)

stigma

d)

style

28.

Fruits that are dispersed by water have __________________.

a)

fibrous husk to trap air and allow it to float.

b)

hard and dry pods.

c)

wing-like structure

d)

hook-like structure

e)

fleshy and juicy flesh.

29.

Fruits that are dispersed by wind have __________________.

a)

fibrous husk to trap air and allow it to float.

b)

hard and dry pods.

c)

wing-like structure

d)

hook-like structure

e)

fleshy and juicy flesh.

30.

Fruits that are dispersed by animals can have the following characteristic(s):

a)

fibrous husk to trap air and allow it to float.

b)

hard and dry pods.

c)

wing-like structure

d)

hook-like structure

e)

fleshy and juicy flesh.

31.

Fruits that are dispersed by splitting can have the following characteristic(s):

a)

fibrous husk to trap air and allow it to float.

b)

hard and dry pods.

c)

wing-like structure

d)

hook-like structure

e)

fleshy and juicy flesh.

32.

Seeds are dispersed _____________________________________.

a)

to encourage overcrowding.

b)

to reduce overcrowding.

c)

to pollinate other plants.

33.

Which of the following conditions are needed for seed germination?

a)

air

b)

water

c)

sunlight

d)

warmth

34.

Which of the following conditions are needed for photosynthesis to take place?

a)

sunlight

b)

carbon dioxide

c)

oxygen

d)

water

e)

chlorophyll

35.

Which of the following are produced during photosynthesis?

a)

sugar

b)

carbon dioxide

c)

oxygen

d)

water

e)

chlorophyll

36.

When iodine solution changes from reddish brown to blue black, it means starch is ____________ and photosynthesis __________________.

a)

present.....did not take place

b)

absent.....did not take place

c)

absent.....has taken place

d)

present.....has taken place

37.

Moving a lamp closer to a plant will cause the rate of photosynthesis to __________________.

a)

increase

b)

decrease

c)

remain the same

38.

When the lamp was turned on, bubbles were produced by the plant as seen in the diagram. The bubbles contain ______________.

a)

carbon dioxide

b)

oxygen

c)

nitrogen

d)

water vapour

39.

Which organ(s) break food up into smaller pieces?

a)

large intestine

b)

small intestine

c)

stomach

d)

gullet

e)

mouth