Problem 10
Explain the difference between the vocabulary words in each of the following sets. $$ \text { basaltic-granitic } $$
Problem 11
Why does magma tend to rise toward Earth's surface? A) It is more dense than surrounding rocks. B) It is more massive than surrounding rocks. C) It is cooler than surrounding rocks. D) It is less dense than surrounding rocks.
Problem 11
Explain why some igneous rocks are coarse and others are fine.
Problem 12
During metamorphism of granite into gneiss, what happens to minerals? A) They partly melt. B) They become new sediments. C) They grow smaller. D) They align into layers.
Problem 12
$$ \text { What is foliation? How does it form? } $$
Problem 13
How do chemical sedimentary rocks, such as rock salt, form?
Problem 13
Which rock has large mineral grains? A) granite C) obsidian B) basalt D) pumice
Problem 14
$$ \text { Why do some rocks contain fossils? } $$
Problem 15
What do igneous rocks form from? A) sediments C) gravel B) mud D) magma
Problem 16
What sedimentary rock is made of large, angular pieces of sediments? A) conglomerate C) limestone B) breccia D) chalk
