4.4 Changing the Planet
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Lesson duration is: 45 minItems in this lesson
Slide 1 - Slide
Slide 2 - Slide
Slide 3 - Slide
Slide 4 - Slide
Slide 5 - Slide
Slide 6 - Video
What does the layer of Ozone gas do?
timer
0:20
A
It helps to get more UV rays to shine on Earth
B
It helps to get less UV rays to shine on Earth
Slide 7 - Quiz
Ozone stops a lot of UV light from
getting to Earth. Why is this important?
getting to Earth. Why is this important?
timer
1:00
Slide 8 - Open question
Ozone is broken down by a chemical called...
A
FCF
B
ABC
C
CFC
D
CBA
Slide 9 - Quiz
Which is true?
timer
0:20
A
UV rays break down CFC's, and this destroys Ozone
B
UV rays break down Ozone, and this destroys CFC's
Slide 10 - Quiz
Explain in 2 sentences why today we have
less chance of skin cancer
than 20 years ago.
less chance of skin cancer
than 20 years ago.
timer
1:00
Slide 11 - Open question
Slide 12 - Slide
Slide 13 - Slide
Slide 14 - Slide
Slide 15 - Slide
Slide 16 - Video
Summary: How do acid
gasses get into the air?
gasses get into the air?
timer
1:00
Slide 17 - Open question
Explain: how does acid rain
destroy a food chain?
(hint: think of plants, or trees, or fish)
destroy a food chain?
(hint: think of plants, or trees, or fish)
timer
1:00
Slide 18 - Open question
Slide 19 - Slide
Slide 20 - Slide
Slide 21 - Slide
Slide 22 - Video
A glass greenhous (glazen kas) keeps plants warm by...
A
Stopping cold air from coming in
B
Keeping warmth from heaters inside longer
C
Pushing cold air out
D
Keeping the sun's warmth inside longer
Slide 23 - Quiz
Greenhouse gasses....
A
Keep the cold out of the Earth's atmosphere
B
Keep some of the sun's heat out of the Earth's atmosphere
C
Keep some of the sun's heat inside of the Earth's atmosphere
D
Keep all of the sun's heat inside of the Earth's atmosphere
Slide 24 - Quiz
Explain: why is it bad to have
too much carbon dioxide
in the atmosphere?
too much carbon dioxide
in the atmosphere?
timer
1:00
