This lesson contains 42 slides, with interactive quizzes, text slides and 1 video.
Lesson duration is: 60 min
Items in this lesson
Sustainability
Slide 1 - Slide
Sustainability is the use of a resource that doesn't cause long term depletion of the resource or affect the diversity of the ecosystem
A
True
B
False
Slide 2 - Quiz
Using resources in such a way that we continue living in a developed world, but at the same time we protect the environment. This is the definition of:
A
Suspensability
B
Ecology
C
Sustainability
D
Ecological precautions
Slide 3 - Quiz
Content
- Energy
- Pollution
- Deforestation
- Global warming
- Pesticides
- Fertilisers
- Waste
Slide 4 - Slide
Energy
A sustainable way to use energy is to use an energy source that does not run out and does not cause harm to the environment. That way future generations can also use that energy source.
We call these energy source renewable, because they renew themselves.
Slide 5 - Slide
Renewable
Non-renewable
Coal
Natural gas
Oil
Solar
Wind
Water/hydro
Slide 6 - Drag question
Renewable resources __________.
A
can be replenished (renewed) over months, year, or decades
B
are all living resources
C
have finite (limited) supplies that will one day be used up
D
include iron, gas, and copper
Slide 7 - Quiz
Which of the following sources of energy is non-renewable?
A
sun
B
wind
C
water
D
oil
Slide 8 - Quiz
Oil, natural gas, and coal are called ________resources because they are not easy to replace.
A
pollution
B
conservation
C
natural resources
D
nonrenewable
Slide 9 - Quiz
Pollution
Polluting the environment happens in many different ways. Generally, pollution will stay in the environment a long time and have negative effects on the organisms that live there.
We find pollution in all parts of the environment: water, air and land.
Slide 10 - Slide
'Famous' effects of pollution
CFC's come from refrigerators and spray bottles. They are responsible for the hole in the ozone layer
Nitrogen oxide and sulfur oxide released into the air cause acid rain which harms trees and water organisms
Burning fossil fuels create pollution with greenhouse gases
Fertilisers leaching into water cause algal blooms
Slide 11 - Slide
Land pollution
Water pollution
Air pollution
CFC's
Methane
Pesticides
Smoke
Oil spills
Fertilisers
Sewage
Trash
Slide 12 - Drag question
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 13 - 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 14 - Quiz
What are the pollutants known to cause acid rain?
A
nitrogen oxides and sulfur dioxide
B
Lemon Juice and Battery Acid
C
Low pH and Acid
D
carbon dioxide and carbon monoxide
Slide 15 - Quiz
Deforestation
Clearing all vegetation from an area
Reasons:
- Use the wood
- Use the land for building
- Use the land for agriculture
- Use the land for mining
Slide 16 - Slide
Effects of deforestation
- Loss of habitat for organisms
- Increased soil erosion because there are less roots to hold soil together
- Increased flooding because of less roots
- Increased amount of greenhouse gases in the air, because there are less plants to absorb CO2
Slide 17 - Slide
What is deforestation?
A
Clearing Earth's forests on a massive scale
B
Eating too much vegetables
C
Going to a forest and pulling weeds
D
Clearing the five trees in my backyard
Slide 18 - Quiz
What does deforestation effect?
A
Plants and animals
B
Our biosphere
C
Humans
D
All of the above
Slide 19 - Quiz
Does deforestation contribute to global warming?
A
No, trees aren't that important
B
Sometimes because only the cutting down of Maple trees contributes to global warming
C
No, deforestation adds methane to the atmosphere, which makes the Earth cooler
D
Yes; less trees means less CO2 is turned into oxygen.
Slide 20 - Quiz
Global warming
Global warming is caused by the enhanced greenhouse effect. The greenhouse gases reflects heat coming from the surface of the earth back towards the earth. This causes the atmosphere to increase in temperature
Slide 21 - Slide
Greenhouse gases
Not greenhouse gases
CO2
Nitrous oxide
Methane
Oxygen
Nitrogen
Argon
Slide 22 - Drag question
Which one of these does not add CO2 to the atmosphere?
A
cooking with gas
B
planting trees
C
burning wood
D
riding in a bus
Slide 23 - Quiz
The gradual increase in the temperature of the atmosphere is known as ________________.
A
Greenhouse Effect
B
Global Warming
C
Carbon Dioxide Gases
D
Methane
Slide 24 - Quiz
Slide 25 - Video
How do living organisms return carbon to the atmosphere in the carbon cycle?
A
respiration and photosynthesis
B
decomposition and respiration
Slide 26 - Quiz
Pesticides
Bioaccumulation: pesticides can not be broken down by organisms, so they are passed on to the next step in the food chain. This builds up (accumulates) and can have big effects higher in the chain
Slide 27 - Slide
Alternatives for pesiticides
- Use natural enemies: for example, ladybugs hunt aphids
- Use crop rotation: plant a different type of crop on that piece of land every year. That way you can plant a crop that is not sensitive to the insects/bacteria/fungi that gathered on the crop from the previous year and you can don't have to use pesticides.
Slide 28 - Slide
Pesticides and herbicides eventually show up in higher level consumers due to
A
climate change
B
bioaccumulation
C
habitat destruction
D
soil erosion
Slide 29 - Quiz
What are pesticides?
A
Pesticides are compounds used to control pests.
B
Pesticides are natural components of crop production.
C
Pesticides are the balance of nature.
D
Pesticides are chemical components of crop production.
Slide 30 - Quiz
Consider the following food chain: Algae -> Mayfly -> Minnow -> Trout In a polluted ecosystem, which organism would likely have the HIGHEST level of toxic chemicals in its body?
A
Algae
B
Mayfly
C
Minnow
D
Trout
Slide 31 - Quiz
Fertilisers
Farming use fertilisers to add nutrients to the ground for their crops to grow more/faster.
Part of those fertilisers are washed out with the rain and end up in the water. This adds nutrients (especially nitrates) to the water and causes an effect we call eutrophication
Slide 32 - Slide
Slide 33 - Slide
What is the very next thing that happens after fertilisers enter a river in eutrophication?
A
Fish die due to a lack of oxygen
B
Plants below the surface die due to a lack of sunlight
C
The number of aerobic bacteria increases
D
Fast growth of plants
Slide 34 - Quiz
What is the very next thing that happens after fast growth of plants in eutrophication?
A
Fish die due to a lack of oxygen
B
Plants below the surface die due to a lack of sunlight
C
The number of aerobic bacteria increases
D
Plants on the surface die due to too much sunlight
Slide 35 - Quiz
What is the very next thing that happens after plants die in eutrophication?
A
Fish die due to a lack of oxygen
B
The number of plants increases again as they have more access to sunlight
C
The number of aerobic bacteria increases
D
The number of nitrates in the river increases again
Slide 36 - Quiz
In eutrophication, what directly causes the death of fish?
A
The plants use up oxygen in respiration
B
The fish are poisoned by high CO2 levels
C
Bacteria use up oxygen in respiration
D
The fish use up oxygen in respiration
Slide 37 - Quiz
Waste
Waste piles take up a lot of space, causing more deforestation
Waste also leads to a lot of pollution
Alternatives would be the three R's: Reduce, Reuse, Recycle
Slide 38 - Slide
The following is an example of reusing:
A
using fewer napkins when you eat.
B
using less water when you brush your teeth.
C
bringing cans back to a recycling center.
D
washing zip top bags after use so they can be used again.
Slide 39 - Quiz
The following is an example of reducing:
A
bringing newspapers to a recycling center.
B
using plastic bags as small garbage bags.
C
using less water when you shower.
D
all of the above.
Slide 40 - Quiz
What does it mean if an item is 'biodegradable'?
A
It means that it will eventually break down completely in nature