Variety Resources F1
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Transcript of Variety Resources F1
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Submarine has ballast tanks
that can be emptied or filled
with water to control the depth
of the submarine in the water.
Air is less dense than waterBy changing the amount of
water in the ballast tanks, asubmarine can rise or sink in
water.
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Plastics balls and metal
spheres are attached to fish
net so that the nets can stay a
float in water.
Why?
Air is less dense than water.
Metal is denser than water.
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Helium or Hydrogen is used in
meteorological balloons.
Why?
Helium or Hydrogen is lessthan air.
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Floats filled with air can help
people swim
Why?
Because air is less dense than
water
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GAS LIQUID
At high pressure,
Gas turns to
Liquid
At low pressure,
Liquid turns toGas
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DISCUSSION
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1 RKCIK ADYANI AHMAD
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List down any resources on Earth that youcan think of?
Walking walkingwalking andyou found?
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Soil
Water Living things Fossils
Minerals
Air
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A layer of Air known as atmospheresurrounds the Earth
Air consists of :-
- oxygen- nitrogen- carbon dioxide
- water vapour- inert gases- dust
- microorganisms
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Human, animals and plants cannot survivewithout water.
Sources:-
OceansSeas
Rivers
Lakes
Rainfalls
Groundwater
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Soil is the outer layer of the Earth. Soil is commonly seen as a medium that supports
plant growth.
Soil includes:- Organic litter such as fallen leaves, twigs, fruits and
animal droppings and carcasses on the soil surfaces
Humus formed from decompositions of the organic
litter
Microorganisms living in the soil.
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Green plants make their own food. Green plants use light energy from the Sun to
make their own food through a process called
PHOTOSYNTHESIS. Aquatic plants and animals on Earth are considered
as resources on Earth.
Plants grow and animals live for human to sustaintheir own life too.
For FOOD.
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Minerals occur naturally on land, seas and oceans. Some examples are :-
Iron
Zinc Aluminium
Tin
Silver Gold
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Minerals are important in human body. Minerals are needed for human system to function
well.
Minerals are also required by plants for healthygrowth.
Some minerals are useful as raw materials for
various industries. (Eg: Gold and Silver)
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Fossil fuels are formed from the remains of animalsand plants that died in millions of years ago.
There are 3 types of fossil fuels :-
PetroleumNatural gas
Coal
Fossil fuels are used in power stations to generateelectricity, motor vehicles and machines. Petroleum is separated into different parts known
as FRACTIONAL DISTILLATION