Rock
Rock II
Rock III
Rock IV
definitions
100
White, yellowish, tan or reddish in color
What is quartzite?
100
name 3 rocks that are spongelike
What are pumice, scoria, and basalt?
200
Like a glass sponge; may float in water
What is pumice?
200
glass; may be black or black with white or red
What is obsidian?
200
light-colored; hard; coarse-grained
What is granite?
200
name a rock with layers that are like ribbons
What is gneiss?
300
can scrape sand off it; contains pebbles
What is conglomerate?
300
dark colored; coarse-grained; usually black, dark gray or greenish
What is gabbro?
400
layers are like ribbons; rock is often hard
What is gneiss?
400
thin, flat layers; usually gray, greenish or red; smooth
What is slate?
400
can scrape sand off it - contains no pebbles
What is sandstone?
400
feels like sandpaper; can scrape sand off it
What is sandstone?
400
name 3 rocks that you cannot scrape sand off of
What are quartzite, basalt and limestone?
500
soft; usually white, pink or tan
What is marble?
500
Name 3 light colored rocks
What are marble, rhyolite, granite, pumice?
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