SCIENCE BLOG. YEAR 4
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SCIENCE 4ยบ
UNIT 1
UNIT 2
UNIT 3
UNIT 5
UNIT 6
UNIT 4
UNIT 7
UNIT 8
UNIT 9
UNIT 10
UNIT 11
UNIT 12
UNIT 13
UNIT 14
Wednesday 27 November 2013
PROTECTING ECOSYSTEMS: POLLUTION
Pollution can affect air, water and soil.
It can harm many living things in ecosystems.
Air pollution. Photo from
wikipedia
Water pollution. Photo from
wikipedia
Water pollution. Photo from
ecofaxina
Soil pollution. Photo from
wikipedia
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