4.4 Changing the Planet
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Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Diapositive
Slide 4 - Diapositive
Slide 5 - Diapositive
Slide 6 - Vidéo
What does the layer of Ozone gas do?
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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?
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Slide 8 - Question ouverte
Ozone is broken down by a chemical called...
A
FCF
B
ABC
C
CFC
D
CBA
Slide 9 - Quiz
Which is true?
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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 - Question ouverte
Slide 12 - Diapositive
Slide 13 - Diapositive
Slide 14 - Diapositive
Slide 15 - Diapositive
Slide 16 - Vidéo
Summary: How do acid
gasses get into the air?
gasses get into the air?
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1:00
Slide 17 - Question ouverte
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 - Question ouverte
Slide 19 - Diapositive
Slide 20 - Diapositive
Slide 21 - Diapositive
Slide 22 - Vidéo
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
