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Ch.10.acids and alkalis (3rd week)..

Thermal energy

Ch.10.acids and alkalis (2).

Ch.10. acids and alkalis (1).

Acids and alkalis 3

Acids and alkalis 2

Acids and alkalis 1

Magnet 1

Thermal energy ppt 1

Heat story

forces Presentation 2

forces Presentation 1

Rock uses

Types of soil

Light energy