Rocks: Where They Come From
en
PG-13
January 1963
Documentary
Follows Don as he sees different kinds of rocks at a granite quarry, sandstone cliff and museum. Demonstrates the effects of water, heat and pressure in the formation of rocks.
Rocks: Where They Come From
January 1963
Follows Don as he sees different kinds of rocks at a granite quarry, sandstone cliff and museum. Demonstrates the effects of water, heat and pressure in the formation of rocks.