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YEAR 6 SCIENCE REVIEW 2023

Total questions: 70

Worksheet time: 1hrs 14mins

Name
Class
Date
1.

True or false: The moon has no air.

a)

True

b)

False

2.
Light from the sun reaches us in nearly
a)
2 minutes
b)
4 minutes
c)
8 minutes
d)
16 minutes
3.
Light year is a unit of
a)
Time
b)
Distance
c)
Light
d)
Intensity of light
4.

Which of the following is not a unit of distance ?

a)

Metre

b)

Feet

c)

Kilogram

d)

Kilometre

5.

The height of a person is 1.65 m. Express the height in cm

a)

165 cm

b)

16.5cm

c)

1650 cm

d)

1.65 cm

6.

When the sun gets higher in the sky, shadows get ______.

a)

longer

b)

gone

c)

shorter

d)

darker

7.

When the sun gets lower in the sky, shadows get______.

a)

longer

b)

gone

c)

shorter

d)

darker

8.

Shadows are longest during _______.

a)

morning and evening

b)

noon

c)

night

9.

Shadows are shortest around______.

a)

morning and evening

b)

noon

c)

night

10.
Which light source causes shadows in the outdoor environment? 
a)
The Sun
b)
The Lightbulb
c)
The House
d)
The School
11.

When was this picture most likely taken?

(Hint: think about the shadow's length)

a)

morning or evening

b)

night

c)

noon

d)

afternoon

12.

When an object blocks the path of light, what is formed?

a)

A problem

b)

A fog

c)

A reflection

d)

A shadow

13.

Where will the tree's shadow be?

a)

A

b)

B

c)

C

14.

Where will the tree's shadow be?

a)

A

b)

B

c)

C

15.

Which position of the sun will make the longest shadow?

a)

A

b)

B

c)

C

16.

Sun is a natural source of light

a)

True

b)

False

17.

Moon produces its own light

a)

True

b)

False

18.

Every star produces it own light

a)

True

b)

False

19.

Why does the straw appear to be bent?

a)

light is reflected

b)

light is absorbed

c)

light is turned

d)

light is refracted

20.

What is the best explanation for Mickey seeing himself in the mirror?

a)

refraction

b)

absorbed

c)

reflection

d)

flipped

21.
When light bends it is ______
a)
Reflection
b)
Absorption
c)
refraction 
d)
optical density
22.
When light bounces back it is _____
a)
Reflected
b)
Refracted
c)
Absorbed
d)
Optical Density
23.
a)
Refraction
b)
Reflection
24.
We see shadows because light travels in a __________________ line.
a)
curved
b)
straight
c)
rainbow
25.

When light bounces off of an object into a different direction

a)

absorbtion

b)

refraction

c)

reflection

26.

When light hits a translucent object and bends

a)

absorbtion

b)

refraction

c)

reflection

27.

when light is stored inside of an object and turns into heat energy

a)

absorbtion

b)

refraction

c)

reflection

28.

We are able to see a mirrored image of the mountains on the water through...

a)

refraction

b)

reflection

29.

The variable that is changed by the scientist at the beginning of the experiment is called the _________

a)

independent variable

b)

dependent variable

c)

controlled variable

30.

Stacy measured the speed of 5 birds that lived around her house. What is the dependent variable?

a)

Type of Bird

b)

Speed of Bird

c)

weather outside

31.
Sarah wanted to find out if the size of a car tire made it a smoother ride over bumps. What is the independent variable?
a)
Size of tire
b)
How smooth the ride was over bumps
c)
Type of car
32.

Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the dependent variable?

a)

Type of fertilizer

b)

Size of sunflower

c)

Type of sunflower

33.
The variable that is being tested or changed
a)
independent variable
b)
dependent variable
c)
control variable
34.

What is the factor that affects the shadow shape of the object?

a)

Position of light source

b)

Object orientation

c)

Type of object

d)

Shape of object

35.

What conclusion can you make from the activity?

a)

A liquid can flow.

b)

A liquid has a fixed volume.

c)

A gas can be compressed.

d)

A liquid has no fixed shape.

36.

What is the process taking place?

a)

Melting

b)

Boiling

c)

Condensation

d)

Freezing

37.

Which process helps the formation of clouds?

a)

Evaporation

b)

Boiling

c)

Condensation

d)

Freezing

38.

Fireworks are .....

a)

an artificial light source

b)

a natural light source

c)

non-luminous

39.

A material that allows ALL light to pass through is ...

a)

transparent

b)

translucent

c)

opaque

40.

A material that allows SOME light to pass through is ...

a)

transparent

b)

translucent

c)

opaque

41.

A material that allows NO light to pass through is ...

a)

transparent

b)

translucent

c)

opaque

42.

When a light ray looks bent when it enters a material it is ...

a)

refracted

b)

reflected

c)

absorbed

43.

A lightbulb is .....

a)

an artificial light source

b)

a natural light source

c)

non-luminous

44.

The above diagram shows that ____

a)

Light is reflected

b)

Light has speed

c)

Light travels in a straight line

45.

What causes shadows?

a)

An object blocking the light source

b)

The water cycle

c)

An object letting the light source through

d)

The moon

46.
Opaque means...
a)
No light passes through it
b)
All light passes through it
c)
Some light passes through it
47.
Things make shadows because they ______ light.
a)
BLOCK
b)
PASS
48.

Light source moves from point C to point A.

What happens to the size of the shadow on the screen?

a)

becomes bigger

b)

becomes smaller

c)

remains the same

49.

Light source moves from point C to point D.

What happens to the size of the shadow on the screen?

a)

becomes bigger

b)

becomes smaller

c)

remains the same

50.

How to increase the size of the shadow on the screen?

a)

Move the light source farther from the object

b)

Move the object closer to the screen

c)

Change the type of object used

d)

Move the object closer to the light source

51.

When an object moves closer to a light source, its shadow...

a)

Gets smaller

b)

Gets bigger

c)

Changes shape

d)

Stays the same size

52.
______________ affects the size of the shadow.
a)
Height
b)
Position
c)
Weight
d)
Shape
53.

There is no shadow formed on the screen. Why?

a)

The object is opaque

b)

The light source is too dim

c)

The object is transparent

d)

The object is translucent

54.

I am a state of matter: my molecules are very close together and hardly move. I am ____________.

a)

Solid

b)

Liquid

c)

Gas

d)

Oblek

55.

I am a state of matter: my molecules are jumping all over the place. I must be a _________.

a)

Solid

b)

Liquid

c)

Gas

d)

Oblek

56.

I am a state of matter: my molecules move past each other easily, but they are pretty close together.

a)

I am a solid

b)

I am a Liquid

c)

I am a gas

57.

Matter is anything that has mass and occupies space.

a)

True

b)

False

58.

Only living things are matter.

a)

True

b)

False

59.

what is matter made up of?

a)

Very tiny particles.

b)

Nothing, it is its self.

60.

The three common states of matter are ___, ___, and ___. (SELECT THREE)

a)

solid

b)

liquid

c)

plasma

d)

gas

61.

T/F: Air has mass.

a)

true

b)

false

62.

T/F: The molecules of a gas are not very attracted to each other.

a)

true

b)

false

63.

SELECT ALL CORRECT ANSWERS: To describe a gas, you could say:

a)

particles are very attracted to each other

b)

particles are NOT very attracted to each other

c)

particles are close together like a liquid

d)

particles of a gas are further apart than those in a liquid or solid

64.

T/F: The atoms of a solid are very far apart and vibrate in fixed positions.

a)

true

b)

false

65.
What is this?
a)
Opaque
b)
transparent
c)
translucent
66.
What is this
a)
opaque
b)
transparent
c)
translucent
67.
The water is what
a)
opaque
b)
translucent
c)
transparent
68.

What type of object is the glass in the glasses considered?

a)

opaque

b)

transparent

c)

translucent

69.
Your grandma has plants in her kitchen. They need lots of light! What type of windows should she have installed that will be best for her indoor garden?
a)
opaque windows
b)
translucent windows
c)
transparent windows
d)
no windows, just walls
70.

A magnifying glass is ________.

a)

transparent

b)

translucent

c)

opaque

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