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Basic science

Total questions: 121

Worksheet time: 1hrs 11mins

Name
Class
Date
1.

What is an example of an unbalanced force

a)

a cat sitting on a chair

b)

an alligator sleeping in the sun

c)

a boy jumping off his bike

d)

a book lying on a desk

2.

How would the absence of friction affect a steel ball traveling on a long straight path

a)

steel ball's speed would decrease

b)

steel ball's speed would increase

c)

steel ball would stop immediately

d)

steel ball would remain at a constant speed

3.

What will happen to the book if no other forces act upon it?

a)

book will stay at rest

b)

book will begin to move

c)

mass of the book will increase

d)

gravity on the book will increase

4.

A man jumps from a plane and a few seconds later opens his parachute. Which causes his fall to slow once his parachute opens?

a)

decrease in gravity

b)

increase in gravity

c)

decreased air resistance

d)

increased air resistance

5.

Which is a push or pull that acts on an object?

a)

force

b)

speed

c)

inertia

d)

momentum

6.

Which force does an airplane have to overcome to stay in flight?

a)

friction

b)

gravity

c)

inertia

d)

momentum

7.

Which can cause an object moving in a straight line to change direction?

a)

an outside force

b)

an increase in speed

c)

a change in momentum

d)

a reduction in friction

8.

The gravity of moon is _________ of the Earth

a)

one-sixth

b)

one-forth

c)

one-fifth

9.
What is gravity?
a)
A force
b)
Energy
c)
A push
d)
All of them
10.

___ is the force which attracts or pulls all objects towards the Earth.

a)

Normal Force

b)

Gravity

c)

Applied Force

d)

Frictional Force

11.

Artificial satellites are launched into space on rockets.

a)

True

b)

False

12.

Satellites use petrol for Power Sources, True or False?

a)

TRUE

b)

FALSE

13.
Which has more mass, Earth or the Moon?
a)
Earth
b)
Moon
c)
The same
14.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
15.

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

a)

normal force

b)

abnormal force

c)

static force

d)

inertia

16.

What are the types of satellites?

a)

artificial & homemade

b)

natural & organic

c)

natural & artificial

17.

A(n) ___________________ is a force applied by a person or object onto another object.

a)

normal force

b)

applied force

c)

electric force

d)

magnetic force

e)

static force

18.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
19.

Human made objects that orbit the Earth are called ___________.

a)

Artificial asteroids

b)

Artificial satellites

c)

Natural asteroids

d)

Natural satellites

20.

What is the name of something that orbits a larger object in Space?

a)

A moon

b)

A comet

c)

A satellite

d)

An asteroid

21.

The natural pull of objects towards each other is called ___________.

a)

Elasticity

b)

An orbit

c)

Gravity

d)

The Moon

22.

Which type of satellite are used for GPS?

a)

Spy satellite

b)

Weather satellite

c)

Comunication satellite

d)

Navigation satellite

23.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
24.

Force that moves an object closer to another object.

a)

Pull

b)

Force

c)

Push

d)

Motion

25.

A force that moves an object away from another object.

a)

Gravity

b)

Push

c)

Pull

d)

Motion

26.
Friction helps objects to move easier.
a)
true
b)
false
27.
_______ is a force that acts between two objects which are touching. This force slows any movement between the two objects.
a)
pressure
b)
magnetism
c)
friction
28.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
29.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
30.

True or False: The more mass an object has, the faster it will fall.

a)

True

b)

False

31.

What do we call the force of gravity on an object?

a)

Mass

b)

Friction

c)

Acceleration

d)

Weight

32.

True or False: Gravity helps the Earth to stay in orbit around the Sun.

a)

True

b)

False

33.

1. How much gravity an object has depends on its ____________.

a)

Weight

b)

Mass

c)

Place

d)

None of the above

34.

What is the process of water being released from plants as water vapor?

a)

precipitation

b)

evaporation

c)

runoff

d)

transpiration

35.

When water vapor condenses, it is...

a)

cooling down

b)

warming up

c)

melting

d)

freezing

36.

What piece of the water cycle prompts evaporation?

a)

a stove

b)

the sun

c)

an oven

d)

ice

37.
What process changes liquid water into vapor?
a)
1 - sun's radiation
b)
2 - condensation
c)
3 - evaporation
d)
4 - precipitation
38.
A 500-gram block of solid cheese is melted in a pot. Which is most likely the mass of the cheese after it is melted?
a)
500 grams, because the cheese does not gain or lose mass just because it was melted
b)
499 grams, because some of the cheese evaporates as it melts
c)
502 grams, because the cheese absorbs heat as it melts
39.

What state of matter is pictured?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

40.
What is an example of evaporation?
a)
Water boiling
b)
Water turning into ice
c)
Chocolate bar turning into liquid chocolate
d)
Fog forming on a mirror
41.
What is an example of condensation?
a)
Water boiling
b)
Water turning into ice
c)
Chocolate bar turning into liquid chocolate
d)
Fog forming on a mirror
42.

What causes the change in the process of melting?

a)

It goes from solid to liquid due to condensation

b)

It goes from solid to liquid due to evaporation

c)

It goes from solid to liquid due to heating

d)

It goes from liquid to solid

43.

What causes the change in the process of freezing?

a)

It breaks due to rust

b)

It dissolves due to baking soda and vinegar

c)

It goes from liquid to solid due to cooling

d)

It goes from liquid to solid to heating

44.

What cause the change in the process of evaporation?

a)

It goes from gas to liquid due to cooling

b)

It goes from liquid to gas due to heating

c)

It goes from liquid to solid due to condensation

d)

It goes from solid to liquid due to freezing

45.

What causes the change in the process of condensation

a)

It goes from a gas to a liquid due to cooling

b)

It goes from liquid to gas due to cooling

c)

it goes from liquid to solid due to cooling

d)

It goes from solid to liquid due to melting

46.

At the freezing point, water turns to solid ice.

a)

True

b)

False

47.

When water is boiling, water begins to

a)

turn into ice

b)

dissolve

c)

evaporate

d)

melt

48.

Freezing point of water is -20 degrees Celsius

a)

True

b)

False

49.

Boiling point of water is

a)

100 degrees Fahrenheit

b)

200 degrees Fahrenheit

c)

100 degrees Celsius

d)

200 degrees Celsius

50.

The process in which a gas turns into a liquid when it touches a warmer surface is _______.

a)

condensation

b)

liquidation

c)

evaporation

d)

transpiration

51.

when a liquid changes to a water vapor or gas it is called __________.

a)

condensation

b)

evaporation

c)

precipitation

d)

transpiration

52.

An instrument that measures temperature is a ______

a)

thermometer

b)

barometer

c)

rain gauge

d)

sun lamp

53.
A puddle disappears after a very sunny day because of ...
a)
Condensation
b)
Precipitation
c)
Transpiration
d)
Evaporation
54.
I am a flower that produces nectar. What is the function of the nectar?
a)
To provide food for the flower
b)
To attract pollinators
c)
To attract animals to disperse the fruits
d)
To produce perfumes for Man
55.
The part of the flower on which the pollen grains land.
a)
pistil
b)
stamen
c)
style
d)
stigma
56.

Insect-pollinated flowers have rough/spiky and sticky pollen grains that can stick to insects's body.

a)

True

b)

False

57.

Wind-pollinated flowers have large and feathery stigmas to catch pollen grains and hang outside the flower.

a)

True

b)

False

58.

Which of the following flowers is pollinated by insects?

a)
b)
59.

TRUE/FALSE? Wind-pollinated flowers often have long, feathery stigmas

a)

True

b)

False

60.

Insect-pollinated flowers typically have

a)

Small, inconspicuous flowers

b)

No scent

c)

Light, powdery pollen grains

d)

Relatively large, and often sticky grains of pollen

61.

Bird-pollinated flowers typically have

a)

Large amounts of nectar

b)

No fragrance

c)

Large amounts of pollen

d)

A dull colour

62.

Wind-pollinated flowers typically have

a)

A scent

b)

Nectar

c)

Small, light and powdery pollen

d)

Large and colourful petals

63.

Why do humans care about pollination of plants?

a)

because they produce the crops that we consume.

b)

because we extract medicine from plants.

c)

because they look wonderful.

d)

All of the above.

64.

Pollinators are attracted to the bright color of the …………. of the flower.

a)

petals

b)

water

c)

soil

d)

roots

65.

True or false?

Pollination is the movement of seeds.

a)

True

b)

False

66.

Which of the following are pollinators ( can choose more that one options )

a)

Bees

b)

Butterfly

c)

Worms

67.

Pollination is important because it …….

a)

Help us to make new plants

b)

Helps us to make new animals

68.

Wind pollinated flowers have to be very attractive

a)

True

b)

False

c)

None

69.

which of the following answers tells us about the Importance of pollination ?

a)

Pollination helps to reproduce and

produce enough seeds for dispersal.

b)

Berries and fruits form food for

animals and birds.

c)

Develop adequate fruits to attract seed

dispersers.

d)

All of the answers

70.

Which of the following type of pollination is being done in the picture ?

a)

Cross pollination

b)

Self pollination

c)

Abiotic

d)

Nond

71.

Which type of pollination is being done in the picture?

a)

Cross pollination

b)

Self pollination

c)

Biotic

d)

None

72.

What are the two types of pollination ?

a)

Biotic and abiotic

b)

Cross and self pollination

c)

None

73.

Pollination is the transfer of pollen from the anther to the stigma of a flower

a)

True

b)

False

c)

None

74.

Which of the following is true ?

a)

Pollen is produced by the anther which ( female part )

b)

Pollen is produced by the anther ( male part )

c)

None

75.

Why are dandelion seeds able to disperse by wind?

a)

Have small seeds and edible

b)

Have air spaces and dry

c)

Have hooks that attached with animals fur

d)

Light and have fine hairs

76.

Which of the seeds below has the same dispersal method as the seed/fruit in this picture?

a)
b)
c)
d)
77.

Choose the ideal characteristics of seed which is disperses by wind

a)

Attractive colour, explode when dry

b)

Small, edible, waterproof

c)

Light, float on water, have air space

d)

Small, light, have wing-like structure

78.

My pod splits open and seeds are thrown far away from my mother plant. What is likely my dispersal method?

a)

By animal

b)

By explosive mechanism

c)

By water

d)

By wind

79.

What are the characteristics of fruits that are dispersed by animals?

a)

Have latex and juicy

b)

Edible and have hooks

c)

Light and have the atrractive colour

d)

Small and have the spiral shape

80.

State a dispersal method for the fruit/seed below

a)

By animals

b)

By water

c)

By wind

d)

By explossive

81.

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

a)

By wind

b)

By water

c)

By animals

d)

By explosive mechanism

e)

By other plants

82.

Plants disperse in various method

a)

True

b)

False

83.
Sometimes animals will _________ seeds and then forget to come back for them.
a)
carry
b)
hide
c)
drop
d)
eat
84.

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

85.

I am waterproof and have fibrous husk. What is likely my dispersal method?

a)

wind

b)

water

c)

animals

d)

explosive action

86.
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
87.
I have air spaces within my fruit. What is likely my dispersal method?
a)
wind
b)
water 
c)
animals
d)
explosive action
88.
My fruits have wings to move with wind . What is likely my dispersal method?
a)
wind
b)
water 
c)
animals
d)
explosive action
89.
I have hooks to cling to animal fur. What is likely my dispersal method?
a)
wind
b)
water 
c)
animals
d)
explosive action
90.
I have parachute like structures. What is likely my dispersal method?
a)
wind
b)
water 
c)
animals
d)
explosive action
91.

Why it is better for seeds to be scattered far and wide?

a)

To provide shelter to other animals.

b)

For farmers to see which soil is good for the plants.

c)

For plants to have a better chance of growing healthier.

92.

How are raspberries dispersed?

a)

by animals

b)

by explosion or bursting

c)

by water

93.

How are coconuts dispersed?

a)

by animals

b)

by water

c)

by wind

94.

How are dandelion seeds dispersed?

a)

by animals

b)

by explosion or bursting

c)

by wind

95.

It is the spreading of seeds to other places.

a)

germination

b)

habitat

c)

seed dispersal

96.

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

97.

How many groups can plants be divided into?

a)

4

b)

2

c)

3

d)

7

98.

A cone is part of ___________

a)

A flowering plant

b)

A non-flowering plant

99.
Is this plant flowering or nonflowering?
a)
flowering
b)
nonflowering
100.

One way Non-flowering plants make seeds is within ___________________.

a)

cones

b)

fruit

c)

roots

d)

stems

101.

All plants reproduce by flowers.

a)

True

b)

False

102.

Example of Non-flowering plants is ….

a)

Pine

b)

rose

c)

jasmine

d)

manggo

103.

The ferns reproduce by:

a)

Spores

b)

Seeds

104.

An apple has:

a)

Seeds

b)

Spores

105.

A cone is part of:

a)

A flowering plant

b)

A non-flowering plant

106.

What is a flowering plant?

a)

A plant that produces spores

b)

A plant that produces cones

c)

A plant the produces flowers and fruits.

107.
a)

Flowering

b)

Non-flowering

108.
a)

Flowering

b)

Non-flowering

109.
Does this plant produce seeds or spores?
a)
Spores
b)
seeds
110.
This plant could be classified as:
a)
nonflowering
b)
flowering
c)
seedless
111.
Plants can be divided into ___________________________
a)
Smell or no smell
b)
Flowering and Non-flowering
c)
Trees or fruit
112.
Which is not an example of a flowering plant?
a)
roses
b)
oak trees
c)
mosses
d)
tomato plants
113.
Plants make their own...?
a)
water
b)
sun
c)
food
d)
vitamins
114.
Is this plant flowering or nonflowering?
a)
flowering
b)
nonflowering
115.
Is this plant flowering or nonflowering?
a)
flowering
b)
nonflowering
116.
Is this plant flowering or nonflowering?
a)
flowering
b)
nonflowering
117.
Is this plant flowering or nonflowering?
a)
flowering
b)
nonflowering
118.

Non-flowering plants are...

a)

mosses

b)

angiosperms

c)

ferns

d)

gymnosperms

119.

The flowers of angiosperms produce (a)   with seeds inside.

120.

All flowering plants have (a)   and produce seeds.

121.

We classify plants into two main groups:

a)

mosses and ferns

b)

flowering plants and angiosperms

c)

angiosperms and gymnosperms

d)

flowering plants and non-flowering plants

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