unit 10. materials. ppt
TRANSCRIPT
Unit 10. Materials
leatherglass metal
wood cotton plastic
Materials around us
Where do materials come from?
Properties of materials
Which materials float?
Materials change
Recycling materials
TRANSCRIPT
Unit 10. Materials
leatherglass metal
wood cotton plastic
Materials around us
Where do materials come from?
Properties of materials
Which materials float?
Materials change
Recycling materials