STUDY GUIDE FOR ROCKS & MINERALS TEST
1) Know how to fill in the blanks on this rock cycle diagram:
2) How is an igneous rock formed?
3) How does an intrusive igneous rock form?
4) How does cooling rate of the magma (how fast or slow it cools) affect crystal size?
5) How does an extrusive igneous rock form?
6) Does an extrusive rock or an igneous rock have larger crystals and why?
7) What are the three types of magma that igneous rocks form from?
8) Which magma is very dark and comprises most of the ocean floor? It is also formed the dark spots
(Black Maria) on the moon.
9) Which magma forms light colored rocks? It is the most common type on the continental land
masses.
10) This type of magma has mineral compositions between those of the other two rock types.
11) What is the most common type of rock on Earth?
12) What is the most common rock at the earth’s surface?
13) What is a sediment?
14) Do sedimentary rock form as layers?
15) What is the oldest layer of a sedimentary rock formation – the top or the bottom?
16) List the three types of sedimentary rocks and define each one.
17) What is weathering?
18) What is erosion?
19) What is compaction?
20) What is cementation?
21) What is a metamorphic rock?
22) What are the two types of metamorphic rocks and what does that mean?
23) What is a mineral?
24) What is the difference between a rock and a mineral?
25) What are the five characteristics of minerals?
26) What are the two major categories of luster?
27) What is luster?
28) Does halite exhibit fracture, cleavage or both? Explain.
29) What is Moh’s hardness scale?
30) On the Moh’s Hardness scale, what is an example of the hardest mineral?
31) On the Moh’s Hardness scale, what is an example of the softest mineral?
32) What is the difference between streak and color?
33) What is the name of the scale used to determine how easily a mineral can be scratched?
34) What is density?
35) Why is halite vital to living animals?
36) What are the six properties you can use to identify a mineral?