Air Pollution All emojis designed by OpenMoji the open-source emoji - - PowerPoint PPT Presentation

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Air Pollution All emojis designed by OpenMoji the open-source emoji - - PowerPoint PPT Presentation

Mar 31, 2023 135 likes •316 views

Air Pollution All emojis designed by OpenMoji the open-source emoji and icon project. License: CC BY-SA 4.0 Lesson objectives 1) Understand why clean air is important 2) Understand experiments we can do to prove air pollution exists 3)

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SLIDE 1

Air Pollution

All emojis designed by OpenMoji – the open-source emoji and icon project. License: CC BY-SA 4.0

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SLIDE 2

Lesson objectives

1) Understand why clean air is important

2) Understand experiments we can do to prove air pollution exists 3) Understand where air pollution can come from

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SLIDE 3

What is air?

  • Air is a mixture of gases that surrounds us.
  • We cannot see it, taste it, or smell it.
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SLIDE 4

Why is air important?

Air

=

  • Our bodies need air so that we can

breathe.

  • Air is as important as food and water. We

could not live without it.

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SLIDE 5

=

Air pollution Why is clean air important?

  • Just like food and water, the air can get

dirty.

  • Something that makes the air dirty is

called air pollution.

  • Our bodies do not like air pollution, it is

bad for our health.

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SLIDE 6

Air pollution

Two types of air pollution

Gases:

  • One of these gases

is called Nitrogen Dioxide.

  • We can also call it

𝐎𝐏𝟑.

Small bits of dirt:

  • This dirt is called

particles.

  • We can also call it

PM.

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SLIDE 7

Can we see air pollution?

  • We cannot see air pollution when it is in

the air.

  • Particles are 5 times smaller than a

human hair!

  • In order to see or measure air pollution,

we have to do some science experiments.

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SLIDE 8

Science experiment: Nitrogen Dioxide (𝐎𝐏𝟑)

Diffusion tube

  • We use a small tube

called a diffusion tube to measure 𝐎𝐏𝟑.

  • Local councils use

these to measure air pollution in their area.

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SLIDE 9

Science Experiment: Particles (PM)

  • It is more difficult to measure PM.
  • We can wipe wet cotton pads on a

surface to pick up PM, so that we can see them.

Particles

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Sources of air pollution

  • One cause of air pollution is traffic.
  • Which of these vehicles do you think

release air pollution?

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SLIDE 11

Sources of air pollution

  • Answer: the car, bus, motorbike and lorry.
  • They cause air pollution because they have

an engine which burns fuel.

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Sources of air pollution

  • Sources of air pollution are either:

Natural: caused by nature. Man-made: caused by human activity.

  • Below are some other sources of air
  • pollution. Which are natural, and which are

man-made?

Burning fuel at home Industry Power stations Wildfire Volcanoes

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SLIDE 13

Sources of air pollution

Answer:

Burning fuel at home Industry Power stations Wildfire Volcanoes

Man-made Natural Natural Man-made Man-made

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Reflection

  • How could the ways we travel to school

affect air pollution?

  • How could we reduce air pollution at

school?

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Activities

  • T

est what you have learnt using the air pollution quiz!

  • Find all the words on

the word search!

  • Design your clean air

superhero!

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Key words

Air pollution: something that makes the air dirty. Nitrogen Dioxide (𝐎𝐏𝟑): a form of air pollution. It is a gas. Particles (PM): a form of air pollution. It is small bits of dirt. Diffusion tube: a small tube we use to measure 𝐎𝐏𝟑.

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SLIDE 17

Feedback

  • If you are a parent or guardian, please
  • ffer any feedback you have about this

lesson using the short 2 minute survey below:

https://www.surveymonkey.co.uk/r/BXSJNKZ