Sources
People and environment
Definitions
Properties of light & sound
Pollution
100

Name 5 sources of artificial light 

(Choose 5)  light bulb, headlights, hydro light, solar light, pot light, glow in the dark patch, screens, black light and big TV screens (cities).

100

How does light affect the environment?

Causes forest fires, may cause accidents, hurts eyes, distracts eyes.

100

Give the definition of light and sound?

Sound- an energy that vibrates and travels into your ear

Light- an energy that always travels forward and can make dark areas bright and helps you see.

100

Name 3 properties of sound?

The properties of sound are pitch, softness and frequencies.                                                                                                                                                                                            

100

What type of pollution is related to sound pollution?

Noise pollution is related to sound pollution

200

Name 5 sources of artificial sound

(Choose 5) Radio, television, microwaves, oven, washing machine, cranes, dryer, cars, trucks, talking, and more.

200

How does sound affect the environment?

Loud sounds hurts our eardrums, loud sounds also damages our ears.

200

Give a definition of artificial light. Give 2 reasons and give examples.

1. Artificial light is man made

2. It's not natural

example: Light bulbs, lamp, LED light, TV, ,I phone

200

Name 3 properties of light?

Three properties of light  are reflect, light traveling and bending

200

What types of light pollution are there.

A glare, light trespass, sky glow and clutter .

300

What would happen if there was no light?

It would be very hard to see if there was no light. It would be dangerous because you might not see what’s coming. People can be in danger.

300

How does light help us in the environment?

it gives directions to move around.

300

What is the definition of vibrations? 

Vibration means move back and forth quickly.

300

What property of light is helpful?

the most helpful is reflection because light reflects in to our eyes and that is how it helps us see.

300

How is pollution caused?

Pollution is caused by Machines, cars, buses, transportation, trains and factories.

400

When molecules touch each other what is it called?

It is called a sound wave. It is because when molecules touch each other they create a wave.

400

How does sound help us in the environment?

it helps us to stay out of danger and helps us communicate.

400

Definition of natural light. 

Give Examples.

An energy that is created by nature ( e.g. Sun, fire and fireflies, stars lightning, lava and more.)

400

What property of sound is helpful?

The most helpful is pitch because it tells how high or low a sound is.

400

What is pollution?

Pollution is when people pollute an area by causing smoke and air.

500

How is thunder made?

When lightning strikes, the surrounding air heats up to a high temperature and expands. the hot air travels like sound waves and causes thunder.

500

Give examples for light and sound pollution.

share your perspective...

500

Definition of light and sound pollution?

Sound :Noise/Sound pollution is created when a tiny area has many loud noises.

Light :Light is created when there is a over use of artificial light

500

How does light travel?

Light travels in a straight line.

500

How does pollution effect people and the environment?

It can cause you to be sick and effect our living by killing plants and polluting water and food that we need to eat and drink.

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