2.ORIGIN OF MATERIALS
NATURAL MATERIALS
wood
wool
diamond
...
MAN-MADE MATERIALS
glass, copper,
plastic, steel...
3.SOME PROPERTIES OF MATERIALS
Materials can be...
Materials can...
float
or
sink
4. RECYCLING MATERIALS
5. GAMES AND ACTIVITIES
ART PROJECT:
Make a house made of man-made materials.
Make a tree made of natural materials.
