Pests of jatropha_Bionomics_identification_Dr.UPR.pdf
Ch.6.less.3.how does using natural resources affect the environment
1. How does using natural resources affect
the environment?
CHAPTER 6: LESSON 3:
2. Resource
Is a material found in nature and used by
living things.
Example:
1) Plants
2) Animals (for food)
3) Air
4) Water (from lakes, rivers and underground)
5) Rocks
6) Oil (underground)
7) Salt
3. Resources can be divided into 3 types.
Renewable resources Reusable resources Non-Renewable
resources
Are resources that
can be replaced
during a human life.
Example:
Plants
Animals
Sun’s energy
Are resources that
cannot be replaced
during a human life.
Example:
Coal
Soil
Metals
Are resources that
can be used over and
over again.
Example:
Air
Water
6. Soil
- Soil is a very important resource.
- Without soil plants will not grow.
- Many animals wouldn’t have
places to live.
7. Soil is a mixture of
many things.
Water Air
Tiny
pieces
of
rock
Humu
s
8. PART OF SOIL
THAT IS MADE
UP OF PARTS
OF DEAD
PLANTS AND
ANIMALS.
Humus
9. Types of soil
- Soil can have
different colors.
- Soil can have
different sizes of
10.
11. Clay soilSilt soilSand soil
Types of soil
Properties
Size of
particles
StickySmoothGritty (coarse)
Feel
(When wet)
Not much air
space
Some air spaceLots of air spaceAir space
Does not pass
(Stays wet)
Stays a while
Passes fast
(Dry fast)
Water
12.
13.
14. Is a mixture of sand soil, silt soil,
clay soil and humus.
Loam soil
Loam soil is the best soil for growing crops.
15.
16. Solid, natural material formed from
non-living things.
Minerals
Gold
Diamond
Graphite
Example:
17. Examples of some minerals and
their uses are:
a) Diamond
- It is very hard (used to cut steel)
- Used for jewelry.
27. 1) Colour
(Not a good way to identify minerals
because some minerals have different
Example: Quartz
Can be pink, purple, white, clear or even
black)
28. 2) Streak
Color of the powder left behind when a
mineral is rubbed against a rough surface
37. Wind and water break the
rocks into small pieces.
Wind and water carries bits
of rock and soil away.
Bits of rock and soil settle
into layers.
After a long time, layers
harden into rocks.
38. Igneous rocks2
- Formed when rocks melt and then
cool.
1) Sedimentary rocks are
pushed under the earth
crust where heat and
pressure turns them to
magma.
2) Magma comes out of a
volcano and cools to
form Igneous rocks.
39. If
Igneous rocks cool
down quickly
Look like glass
Example:
Obsidian
Igneous rocks cools
down slowly
Has large grains
Example:
Granite
60. Pollution
Dump wastes from homes and factories into ocean,
lakes and rivers. Polluted water kill plants and
animals, they make people sick.
Water pollution
64. Moving away
Not all animals accommodate ecosystem changes. Some must
find new places to live in to find food, water and shelter.
65. Extinction
If an organism does not find its need after ecosystem changes,
it will die. Sometimes a species can slowly disappear and
become extinct.
68. Reduce
Turn off the lights when you do not need them
Turn off TV when not watching it
Write on both sides of sheet
Close tap ( faucet ) while brushing teeth
Fix leaky toilets and faucet
Ride bike instead of a car
Use less of something
69. Reuse
Wash glass bottles and reuse them
Donate clothes and books so that other people uses them
Reuse old clothes as cleaning rags
Use plastic shopping bags as garbage bin
Buy rechargeable batteries to use
Use something again
70. Recycle
Recycle paper, plastic, glass and metal
Recycle paper to make newspaper, cards.
New product from old materials
