Intro to Chem & Ozone layer

Intro to Chem & Ozone layer

by Aaishah Variawa

​05-09-2021

​L.O: Explain matter and describe the ozone layer as well as its importance

​1) Define chemistry and matter.

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​2) Explain the importance of the ozone layer

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​3) Describe the effects of CFC's on the ozone layer

Multiple Choice

How many branches of chemistry are there?

• 1

• 2

• 3

• 4

Open Ended

Type your answer: Why do you think we should wear sunscreen when we are at the beach?

Multiple Choice

The study of matter is called ...

• chemistry

• CFC's

• ozone layer

• natural

Multiple Choice

What is NOT an example of matter?

• Air

• Water

• Light

• Wood

Multiple Choice

The opposite of a natural substance is a ____ substance

• CFC

• ozone layer

• synthetic

• matter

Multiple Choice

Synthetic substances are biodegradable

• true

• false

Multiple Choice

Which UV rays from the sun can damage our skin?

• UV A

• UV B

• UV C

• All UV rays

Multiple Choice

Gamma radiation can be used to treat ...

• headaches 

• covid-19

• skin cancer

• diabetes

Multiple Choice

Ozone is made of 3 _____ atoms.

• nitrogen

• hydrogen

• carbon

• oxygen

Multiple Choice

what does "CFC" stand for?

• carbonchlorineflourine

• chlorofluorocarbon

• sodium sulfate

• fluorocarbonchloride