Rock Tumbler Apparatus
| Have you ever seen smooth pebbles and rocks on the beach or
river bank? A long, long time ago these were rough rocks. Over
time, the action of the water and the sand gradually made them
smooth. Now your students can recreate in a few weeks what nature
does over thousands of years. They'll use the easy-to-operate
tumbler and included agates and abrasives to turn rough rocks into
beautiful stones! They can even use the polished rocks to create
their own jewelry. Comes with comprehensive, illustrated student
and teacher guides. Size: 9"L x 5"W x 5"H. |
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Refill package set of agates and abrasives is available separately.
Recommended for students in grades 6 through 12. |