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Science year 2.5: sustainability
Today
last paragraf of topic 2
preparing for testweek
Everything is in classroom
1 / 29
suivant
Slide 1:
Diapositive
Science
Middelbare school
havo
Leerjaar 2
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Today
last paragraf of topic 2
preparing for testweek
Everything is in classroom
Slide 1 - Diapositive
What was renewable energy?
A
New types of energy
B
It does not run out, it renews itself
C
energy that consists of waves
D
It runs out, so we won’t be able to use it forever
Slide 2 - Quiz
What does the 'law of conservation of energy' mean?
A
energy can not convert from one form to another
B
Energy has to uphold the law
C
Energy is never lost
D
Energy is lost when converted
Slide 3 - Quiz
Nuclear energy is
A
sustainable
B
Renewable
C
sustainable and renewable
D
Not sustainable nor renewable
Slide 4 - Quiz
heat transfer via direct contact.
heat transfer via air or water.
heat transfer via light/ electromagnetic radiation
convection
conduction
Radiation
Slide 5 - Question de remorquage
learning goals
explain why a vegetarian diet is more sustainable
explain how pesticides can accumulate in the food chain and kill predators
explain how different kinds of pollution can lead to long term problems
Explain what the greenhouse effect is and how extra gasses can enhance this and cause global warming
use the three R's to identify ways to live more sustainable
Slide 6 - Diapositive
What does sustainable mean
A
bad for the environment
B
it kills living things
C
better for the environment
D
using pesticides to help the environment
Slide 7 - Quiz
Food choices
All of the energy of our food comes from the sun
A lot of that energy is 'lost'
By eating less (or no) animals we 'lose' less energy
Slide 8 - Diapositive
Slide 9 - Diapositive
food choices
Other things that do NOT help the environment
1. Pesticides (to kill insects on crops)
2. A lot of transport (fuel usage)
3. Use of antibiotics for animals
All this builds up in the food chain before it gets to us
This is called accumulation
Slide 10 - Diapositive
Pollution
Our modern way of life causes a lot of pollution
A lot of materials like plastic are NOT
biodegradable
Eventually these plastics will get smaller and get into our food chain
Slide 11 - Diapositive
Pollution _________________________.
A
is harmful materials put into the environment
B
found in air, water, and land
C
effects plants, animals, and people
D
All of the above
Slide 12 - Quiz
What is air pollution?
A
Any harmful substance that builds up in the air
B
pollen, dust, gases
C
chemicals in the water
D
industrial pollution
Slide 13 - Quiz
greenhouse effect
The effect is important for earth
It keeps the earth warm
But to much is not OK
Slide 14 - Diapositive
Greenhouse effect
Slide 15 - Diapositive
greenhouse effect
greenhouse gasses such as carbon dioxide ( CO
2
) and methane ( CH
4
)
cause a bigger greenhouse effects
Heat (radiation) can't leave the atmosphere
Earth heats up (
global warming
)
Enhanced greenhouse effect
Slide 16 - Diapositive
The greenhouse effect is a natural phenomena
A
True
B
False
Slide 17 - Quiz
What is the greenhouse effect?
A
Global warming
B
Climate change
C
Gasses re-radiate heat back to earth
D
Air pollution that heats the earth
Slide 18 - Quiz
Energy
Power
Time
Voltage
current
I
P
U
E
t
Slide 19 - Question de remorquage
Place the correct symbol behind the electrical components
Battery
Wire
Switch
Light bulb
LED
Mains socket
Slide 20 - Question de remorquage
voltage is the same for all components
current is the same throughout circuit
Series
Parallel
Still works if one lamp is broken
If you connect batteries this way, you can add their voltages
Slide 21 - Question de remorquage
Sustainable living
How can we live more sustainable
The three R's:
Reduce
Reuse
Recycle
Slide 22 - Diapositive
seperate your trash so that certain materials can be used again
use things more than once
lowering the amount of energy and resources you use
Reduce
Reuse
recycle
Slide 23 - Question de remorquage
What is a catalyst?
A
something that makes substances burn
B
something that prevents materials to burn
C
something that increases the ignition energy
D
something that lowers the ignition energy
Slide 24 - Quiz
What is the Voltage of a electrical socket in a house?
A
360 V
B
12 V
C
230 V
D
1500 V
Slide 25 - Quiz
What part of an atom makes it possible for electrical energy to trafel?
A
Proton
B
Nucleon
C
Muon
D
Electron
Slide 26 - Quiz
The formula is P = U x I
Witch of these is also correct?
A
U = I / P
B
U = P x I
C
U = P / I
D
U = P + I
Slide 27 - Quiz
Testweek
Theory test - about topic 2
Slide 28 - Diapositive
Theory test
in testweek
1. about topic 2
2.
Lesson-ups
and
slides
in classroom
3.
Games
and
video's
in classroom
5.
learning goals
in classroom
5. Start in time
6. Bring your calculator, pen and pencil
Slide 29 - Diapositive
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