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SCIENCE 3 REVIEWER

Total questions: 85

Worksheet time: 1hrs 9mins

Name
Class
Date
1.
Which of these are examples of NATURAL sources of light?
a)
Sun 
b)
Stars
c)
Lightning
d)
ALL of them
2.

Sun is a natural source of light

a)

True

b)

False

3.

The light received from candle is...

a)

Natural Source of light

b)

Artificial Source of light

4.

Jelly fish are bio-luminescent and create their own light

a)

False

b)

True

5.
You can see through water because ---
a)
it's opaque
b)
it's translucent 
c)
it's transparent
d)
it's wet
6.
What does ARTIFICIAL mean?
a)
Made by humans
b)
Natural
7.
Which of these are examples of ARTIFICIAL sources of light?
a)
Lightbulbs
b)
Neon signs
c)
Televisions
d)
ALL of them
8.

Which of the following is an example of artificial source of light?

a)

fluorescent

b)

star

c)

sun

9.

One of these is not a source of light

a)
b)
c)
d)
10.

This insect is a natural source of light. Can you tell what insect it is?

a)

Mosquito

b)

Dragon fly

c)

Fire fly

d)

Beetle

11.

All these living things produce light EXCEPT __________

a)
b)
c)
d)
12.

Which one of these is the most important source of light on earth?

a)
b)
c)
d)
13.

What is light?

a)

Energy that you can see

b)

Light bulbs, candles, the sun

c)

Electrical energy

d)

What lets me stay out at night

14.

What is light?

a)

Light is a form energy that allow us to see.

b)

Is a force that we need.

15.

Fluorescent tube light, incandescent lamp and Neon lamp are examples of Natural Sources of Light

a)

True

b)

False

16.

The picture shows that sound ______________________________.

a)

tells people what to do

b)

is use for entertainment/ relaxation

c)

warns us of danger

d)

keeps us warm

17.

There are many sources of heat in our homes. Which one is the BEST example of heat energy?

a)

stove

b)

can opener

c)

blender

d)

air from an air cooler

18.

People use a lamp to help them see, but the bulb can get quite warm. What two forms of energy are being produced by the lamp?

a)

Light and Heat

b)

Light, Sound and Heat

c)

Light and Sound

d)

Heat and Sound

19.

Select the things that give out heat. Choose all possible answers.

a)
b)
c)
d)
20.

Which of these do NOT use heat?

a)

cooking food

b)

baking a cake

c)

bouncing a ball

d)

having a hot shower

21.

Which shows the use of heat?

a)
b)
c)
d)
22.

What gives out sound? Choose all possible answers.

a)
b)
c)
d)
23.

The heat from the (a)   helps us to dry our clothes.

24.

TRUE or FALSE:

A lightbulb is a source of sound.

a)

TRUE

b)

FALSE

25.

TRUE or FALSE:

A candle is a source of heat and light.

a)

TRUE

b)

FALSE

26.

Which string would have the lowest pitch?

a)

1

b)

2

c)

3

d)

4

27.

Who would hear the song at the lowest volume?

a)

child 1

b)

child 2

c)

child 3

d)

child 4

28.

Which sound would most likely have the highest pitch?

a)

a lion's roar

b)

a dog's growl

c)

a man yelling

d)

a bird singing

29.

Which pair of terms best describes volume of sound?

a)

high and low

b)

loud and soft

c)

loud and high

d)

soft and low

30.
__________ means to move back and forth quickly.
a)
Pitch
b)
Amplitude
c)
Vibration
d)
Echo
31.
Which of these are examples of NATURAL sources of light?
a)
Sun 
b)
Stars
c)
Lightning
d)
ALL of them
32.

This insect is a natural source of light. Can you tell what insect it is?

a)

Mosquito

b)

Dragon fly

c)

Fire fly

d)

Beetle

33.

All these living things produce light EXCEPT __________

a)
b)
c)
d)
34.

What is temperature?

a)

The amount of water in a container.

b)

The size of a shadow.

c)

The measure of how cold or hot something is.

d)

Celsius

35.

What tool can be used to measure how hot or cold something is?

a)

clock

b)

ruler

c)

thermometer

36.
Which example creates heat through electricity?
a)
a microwave
b)
the sun's rays
c)
breaks on a bicycle 
d)
burning coal
37.

_________________________ objects in a fire can produce heat.

a)

Burning

b)

Freezing

c)

Moving

d)

Rubbing

38.

What is heat in Science?

a)

Energy that moves from warmer objects to cooler objects.

b)

How warm something is.

c)

Energy that allows us to see.

d)

32 degrees Celsius.

39.

Electricity can come from batteries or an...

a)

electric power station

b)

handphone

c)

airplane

d)

laptop

40.

A power station uses natural fuels to drive generators to produce ...

a)

heat

b)

light

c)

battery

d)

electricity

41.

One of simple action to conserve electricity that we can do is ...

a)

turn all the lights on

b)

open the refrigerator's door every time we want

c)

keep the AC on when there is nobody in the room

d)

switch off all electrical equipment that are not in use

42.

Electricity can harm us if we are not careful when using it. It means that we must use electricity ...

a)

safely

b)

anytime we want

c)

all day

d)

carelessly

43.

These are how we use electricity safely, except...

a)

don't touch electricity with wet hands

b)

use electrical equipment with exposed wires

c)

don't put too many plugs into one socket

d)

make sure that electrical equipment have plastic or wooden handles

44.

The meaning of the picture is...

a)

don't forget to wash your hands

b)

don't touch electricity with wet hands

c)

don't touch the wall

d)

don't touch the hand

45.

Trees are renewable resources.

a)

True

b)

False

46.

Coal is a renewable resource.

a)

True

b)

False

47.

Wind is a renewable resource.

a)

True

b)

False

48.

Oil is a renewable resource.

a)

True

b)

False

49.

Rocks are renewable resources.

a)

True

b)

False

50.

Water is a renewable resource.

a)

True

b)

False

51.

The sun is a renewable resource.

a)

True

b)

False

52.

Gold is a renewable resource.

a)

True

b)

False

53.

Natural gas is a renewable resource.

a)

True

b)

False

54.

Minerals are renewable resources.

a)

True

b)

False

55.

Trees are a renewable resource because ...

a)

they can be replanted.

b)

of how big they can grow.

c)

they burn in forest fires.

d)

birds live in them.

56.

Select the sunny weather

a)
b)
c)
d)
57.

Select the rainy weather

a)
b)
c)
d)
58.

Select the cloudy weather

a)
b)
c)
d)
59.

Select the snowy weather

a)
b)
c)
d)
60.

Select the windy weather

a)
b)
c)
d)
61.

2. Which of the following is NOT a safety precaution during rainy days?

a)

A. Avoid sun exposure: wear a wide-brimmed, breathable hat.

b)

B. Be ready with your umbrellas, raincoats, and rain boots during rainy days.

c)

C. Do not use cellphone or other electronic devices except for emergencies when thunderstorm occurs.

d)

D. Stay inside the house to avoid flying objects like roof materials, broken branches of trees, or falling posts.

62.

3. Which of the following is a correct way of protecting your skin if you have to go outside on a sunny day?

a)

A. wear hat

b)

B. apply sunscreen lotion

c)

C. wear long-sleeved shirt and pants

d)

D. all of the above

63.

4. Your family is planning to have a summer outing at the beach. What preparations will you do?

a)

A. Bring different type of clothes and outfits.

b)

B. Don’t worry about the clothes you are going to bring.

c)

C. Choose the most appropriate clothes for the said occasion.

d)

D. Visit the nearby department store and buy new clothes.

64.

5. Which of the following is NOT a preparation for a typhoon?

a)

A. Make a household emergency bag

b)

B. Visit the nearby department store and buy clothes that are in fashion.

c)

C. Look out for objects that could be easily swept up and picked up by gushes of wind.

d)

D. Ensure any leaks in the roof are repaired to prevent water from dripping into the house.

65.

6. You walk to and from the school on a sunny day, what should you bring to shield yourself from the sun’s heat and light?

a)

A. boots

b)

B. sunglasses

c)

C. umbrella

d)

D. raincoat

66.

7. Which of the following is inappropriate to do during windy days?

a)

A. fly a kite

b)

B. make windsocks

c)

C. burn dried leaves

d)

D. wear thick clothes

67.

8. Why do we need to follow safety precautions?

a)

A. to put everyone at risk

b)

B. to put everyone in danger

c)

C. to protect lives and property

d)

D. to put damages in properties

68.

10. Which of the following is NOT needed in preparing an emergency bag?

a)

A. flashlights and batteries

b)

B. television and computer

c)

C. food and water

d)

D. toiletries and first aid kit

69.

The sun is the largest star in the sky.

a)

True

b)

False

70.

What object can NOT be seen in the night sky?

a)

The moon

b)

Stars

c)

The sun

d)

Clouds

71.
When is your shadow the longest?
a)
At noon
b)
At night
c)
In the morning
d)
at 1:00 p.m.
72.
The different ways the moon looks are called
a)
phases
b)
shapes
c)
pictures
d)
comets
73.
At 12 noon the sun is _______.
a)
Low to the ground
b)
Not visible
c)
High in the sky
d)
Covered by clouds
74.

Identify the picture if it is Beneficial or Harmful effect of the Sun to living things. Choose the best answer.

a)

Beneficial effect

b)

Harmful effect

75.
a)

Harmful effect

b)

Beneficial effect

76.

a)

Harmful effect

b)

Beneficial effect

77.

a)

Beneficial effect

b)

Harmful effect

78.

a)

Beneficial effect

b)

Harmful effect

79.

a)

Beneficial effect

b)

Harmful effect

80.

a)

Harmful effect

b)

Beneficial effect

81.

a)

Beneficial effect

b)

Harmful Effect

82.

a)

Beneficial effect

b)

Harmful Effect

83.

We can get electricity from two of the following

a)
b)
c)
d)
84.

This generates electricity with _______

a)

water

b)

sun

c)

wind

d)

fossil fuel

85.

Solar energy is converted to electricity using one of this

a)
b)
c)
d)

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