Question 1

What is light?

Accepted Answer

Light is a form of energy that we can see. It travels in waves and helps us see the world around us.

Question 2

Why is the sky blue?

Accepted Answer

The sky looks blue because air scatters the blue color from sunlight more than other colors. So, when you look up, you see more blue light.

Question 3

Why is light important for us?

Accepted Answer

Light is important because it helps us see things. It also helps plants grow by giving them energy.

Question 4

What is a rainbow?

Accepted Answer

A rainbow happens when sunlight passes through raindrops in the air. The raindrops break the light into different colors like red, orange, yellow, green, blue, and purple.

Question 5

How do mirrors work?

Accepted Answer

Mirrors work by reflecting light back to us. When light hits a mirror, it bounces back, showing us what is in front of the mirror.

Question 6

What is the speed of light?

Accepted Answer

Light travels super fast, about 186,000 miles per second! That's fast enough to get around the Earth over seven times in just one second.

Question 7

Why do we see colors?

Accepted Answer

We see colors because different objects reflect different parts of the light. Our eyes and brain work together to see these different colors.

Question 8

What are optic fibers?

Accepted Answer

Optic fibers are tiny threads of glass or plastic that carry light. They are used to send information quickly, like phone calls and internet data.

Question 9

Why can't we see in the dark?

Accepted Answer

We can't see in the dark because there's no light for our eyes to use. We need some light to be able to see things around us.

Question 10

How do we use light to make pictures with cameras?

Accepted Answer

Cameras use light to make pictures by letting light in through a lens. The light hits a sensor or film that captures the image.

Question 11

What are shadows?

Accepted Answer

Shadows are dark shapes made when an object blocks the light. The light can't go through the object, so it forms a shadow on the other side.

Question 12

What is a prism?

Accepted Answer

A prism is a special piece of glass or plastic that bends light. It can split light into a rainbow of colors.

Question 13

Why do stars twinkle?

Accepted Answer

Stars twinkle because when their light enters Earth's atmosphere, it gets bent by the air. This bending makes stars look like they are twinkling.

Question 14

What is a lens?

Accepted Answer

A lens is a curved piece of clear material, like glass or plastic, that bends light. Lenses help us see better, like in glasses or cameras.

Question 15

How do telescopes help us see faraway things?

Accepted Answer

Telescopes use big lenses or mirrors to gather lots of light from faraway objects. This makes those distant objects look bigger and clearer to us.

Question 16

Can light travel through anything?

Accepted Answer

Light can travel through things like air and glass, but not through everything. Some things, like walls, block light completely.

Question 17

What happens to light when it passes through water?

Accepted Answer

When light passes through water, it slows down and bends. This bending can make things look bigger or in a different place than they really are.

Question 18

How do our eyes see light?

Accepted Answer

Our eyes see light using special parts called rods and cones. These parts send messages to our brain to tell us what we're seeing.

Question 19

Why do some bugs glow in the dark?

Accepted Answer

Some bugs glow in the dark because they have special chemicals in their bodies. These chemicals react to make light without heat.

Question 20

What is laser light?

Accepted Answer

Laser light is a kind of very focused light. It is super bright and strong, and can be used for things like cutting through metal or playing music from CDs.

The Science of Optics and Light - 20 FAQs Explained Simply