Burning fossil fuels (n)Subject: Science (Grade 5)

Prepared by: faculty member of PGS

Burning Fossil fuels (n) We depend (v) on Fossil fuels to provides us

energy.

Factories (n) Fuel for vehicles Cooking food

But this burning (n) is causing (v) Air pollution (n)

Results of air pollution (n)

Acid rain (n) Global warming (n)

Acid rain

Rain water contains a small amount of acid.

FORMATION OF FORMATION OF ACID RAINACID RAIN

SO2

NOX

1.Vegetation(n)1.Vegetation(n) Wash(v) away(av) essential(adj)

nutrients(n) ions from soil(n) Poor(av) growth(v) of plants(n)

ENVIRONMENTAL ENVIRONMENTAL PROBLEMS(n)PROBLEMS(n)

2.Aquatic Life(n)2.Aquatic Life(n) Inflow(v) of acidic(adj) water(n)

containing(v) poisonous(adj) metal ions(n) Kill(v) the fish(n) and water plants(n)

3. Building(n)3. Building(n) Acid rain(n) attacks(v) the building

materials(n) and causes(v) corrosion(n).

What is(hv) global warming(n)?

How Global Warming(n) Works(v)

Fossil fuels(n) (coal, oil, natural gas)

Carbon Dioxide (CO2) (n)

The Sun’s(n) energy passes(v) through the car’s windshield(n).

This energy (heat) is trapped(v) inside the car and cannot pass(v) back through the windshield(n), causing(v) the inside(n) of the car(n) to warm up(v).

Example of the Greenhouse Effect(n)

Effects of Global WarmingIncreased(adj)Temperature(n)

Habitat(n) Damage(v) and

Species(n) Affected(v)

Changes(v) in(prep) Water Supply(n)

Rising(v) Sea Level(n)

WHAT’S THE(ART.) PROOF(N) THAT GLOBAL WARMING(N) IS TAKING(V) PLACE?

Portage Glacier(n) Alaska

1914 2004

Colorado River(n) Arizona

June 2002 Dec 2003

WHY IS GLOBAL(N) WARMING HAPPENING(V)?

Burning(v) of Fossil Fuels(n)

Pollution from coal, natural gas, and oilPollution from coal, natural gas, and oil

Pollution(n) from coal(n), natural gas(n),

and oil(n)

WHEN DID GLOBAL WARMING(N) START(V)?

Global Atmospheric Concentration(n) of CO2(n)

QUESTION(n) ANSWER(n) SESSION(n)…!