The density of rubber can vary, and the density of wood can vary even more (unless we're putting air in the rubber to make foam). In general, however, wood is less dense than rubber, rubber is less dense than copper, and copper is less dense than mercury.
The main materials are wood, rubber, graphite, and metal. The wood comes from trees. The rubber comes from petroleum and living trees. The graphite comes from carbon. And the metal comes from ores.
quartz
rubber(synthetic and natural), polypropylene, wood, glass, plastic
glass, rubber, sulphur, wood, cloth, paper, ...
the matierials for a metal hammer are wood(trees) and metal ore(from the ground) The matierials for a rubber mallet are rubber (rubber trees)wood(tree) The matierials for a wooden mallet are wood(trees)
You can buy rubber wood by shopping at your local home supply store. Home Depot and Lowe's both offer forms of rubber wood mulch and rubber wood for building.
Rubber stamps come in many shapes and sizes. They consist of a handle, usually of wood or plastic, and the die--attached to said handle-- made of rubber or a rubber like substance.
rubber, wood, and medicine rubber, wood, and medicine
Rubber tree wood is not safe for burning in a fireplace indoors. Rubber tree would can be burned in an outside fire pit. Sometimes the fumes from rubber tree wood can be toxic.
because wood floats and too much rubber will make the darn'ed boat sink
hi
910.
woodrubberbreadplasticglassoilgasolinepaintclothvarnishpure distilled waterairceramicpotterylimestonesandstonemarblegranitebasaltpapermicaleatherconcreteseashellsasphaltetc.
silver.
rubber and wood
They are rubber , plastic , and wood .