Light and dark

Question 1

What is darkness?

Answer 1

The absence of light.

Question 2

What is a light source?

Answer 2

A light source is something that has a light of its own.

Question 3

What are shiny objects?

Answer 3

Objects that reflect light. They don’t make their own light.

Question 4

Which animals make light of their own?

Answer 4

Firefly, Angler fish

Question 5

Which is the main source of light in the daytime?

Answer 5

The sun.

Question 6

Name things that the sun gives us.

Answer 6

Heat, warmth and light

Question 7

How is a shadow formed?

Answer 7

A shadow is made when travelling light is blocked by an object.

Question 8

How does light travel?

Answer 8

It travels in straight lines. It cannot bend. These are called rays.

Question 9

How can a shadow change?

Answer 9

By moving an object closer to the source of light or moving an object further away from a source of light.

Question 10

What is a solar eclipse?

Answer 10

When the moon is between the earth and the sun

Question 11

What is light?

Answer 11

Light is a form of energy that helps us to see.

Question 12

Is the moon a source of light?

Answer 12

No. It reflects light from the sun.

Question 13

Name the 2 sources of light.

Answer 13

1. Natural light

2. Artificial light

Question 14

What is artificial sources of light?

Answer 14

It is the kind of light made by man.

Question 15

Give examples of artificial sources of light.

Answer 15

Candle, torch, oil lamp, bulb, fire, headlights, floodlights.

Question 16

What is natural sources of light?

Answer 16

It is the kind of light made by God.

Question 17

Give examples of natural sources of light.

Answer 17

Sun, stars, glowworm, firefly, lightening, angler fish

Question 18

What causes darkness?

Answer 18

Darkness of the earth is caused by lack of sunlight.

Question 19

What are nocturnal animals?

Answer 19

Nocturnal animals are animals that are more active at night time than during the day.

Question 20

Give examples of nocturnal animals.

Answer 20

Bats, Hippos, Catfish, owls, cockroaches

Question 21

What are transparent materials?

Answer 21

These are materials that allow light to pass through them.

Question 22

What are translucent materials?

Answer 22

These are materials that allow a little light to pass through them.

Question 23

What are opaque materials?

Answer 23

These are materials that do not allow any light to pass through them.

Question 24

Give examples of transparent materials.

Answer 24

Glass, Glass window, air, water

Question 25

Give examples of translucent materials.

Answer 25

Tracing paper, tissue paper

Question 26

Give examples of opaque objects.

Answer 26

Wood, body, wall, book, blackboard, metal.

Question 27

How do we see things?

Answer 27

When light hits an object it reflects (bounces off) and enters our eyes.

Question 28

Give examples of reflective surfaces.

Answer 28

Smooth and shiny objects such as mirrors and polished metals reflect light

Question 29

Give examples of surfaces that do not reflect light well.

Answer 29

Dull and dark surfaces such as dark fabrics.

Question 30

Name uses of reflective surfaces.

Answer 30

1. Mirrors in cars reflect light to help drivers to look behind.
2. Reflective stripes on clothing and bikes help cyclists to be extra visible at night.

Question 31

How do we keep safe in the sun?

Answer 31

1. Put on sunscreen
2. Put on sunglasses
3. Put on a hat.

Question 32

When are shadows long in the day?

Answer 32

In the morning and in the evening

Question 33

When are shadows short in the day?

Answer 33

At noon or in the middle of the day.