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CBSE Class 3 EVS Worksheet

Light

1.
What type of light does a light bulb give off?
2.
What is a non-luminous object?
3.
Fill in the blanks: Luminous objects can be seen in the _______.
A) Dark B) Star C) Moon D) Earth
4.
State True or False: When light is blocked, a shadow occurs.
A) true B) false
5.
What are the situations in which shadows move?
6.
Fill in the blanks: ______ is the natural source of light.
A) Plants B) Bulb C) Sun D) Tube light
7.
State True or False: Water can be used to magnify images.
A) true B) false
8.
What are the sources of light?
9.
Fill in the blanks: ____ does not produce its own light.
A) Sun B) Moon C) Star D) Bulb
10.
Fill in the blanks: A natural and artificial source of light is called as ______ object.
A) Solar B) Luminous C) Bright D) Energetic
11.
Who gives light during night time?
12.
Which colours is white light made of?
13.
Fill in the blanks: Lens is a ______object.
A) Transparent B) Translucent C) Opaque D) Rectangular
14.
What is the size of shadow in the morning?
15.
Fill in the blanks: A table is an ______ object.
A) Transparent B) Translucent C) Opaque D) Rectangular
16.
Fill in the blanks: A _______ is a dark area made when an object blocks light.
A) Shadow B) Reflection C) Refraction D) Rainbow
17.
Fill in the blanks: _____ is translucent.
A) Ball B) Pencil C) Button D) Oil
18.
What is a transparent object?
19.
State True or False: Light travels fast in air than in vaccum.
A) true B) false
20.
What happens to the shadow when brought closer to a source of light?

CBSE Class 3 EVS Worksheet

Light

Answers

1.
A light bulb gives off white light.
2.
Objects that do not have their own light are called as non-luminous objects.
3.
Option A
4.
Option B

5.
Shadow moves in both the situation, if we move the source of light or if we move the object.
6.
Option C
7.
Option B

8.
Sun, fire is the natural source whereas bulb, a torch is the man-made sources.
9.
Option B
10.
Option B

11.
Stars in the sky together give light during the night.
12.
White light is made of all the colours of a rainbow.
13.
Option A

14.
Shadows are large in size in the morning and become smaller when reaches the head.
15.
Option C
16.
Option A
17.
Option D

18.
When an object allows light to pass through it, it is called as a transparent object.
19.
Option B

20.
When the shadow is brought closer to the source of light, the shadow enlarges.

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