Identifying Rocks and Minerals
A student found a rock in the desert that was mixed with clay, gravel, and sand. What type of rock did the student find?
A) Sedimentary
B) Igneous
C) Metamorphic
D) Balsam
A) Sedimentary
True or False: Rocks are made up of minerals.
True
Pick the correct difference between a rock and a mineral.
A) A rock can be made up of minerals, but minerals cannot be made up of a rock. Rocks have two or more materials and Minerals have one material.
B) A mineral can be made up of rocks, but rocks cannot be made up of minerals. Rocks have one material and Minerals have two or more materials.
C) A rock always has the same shape, while minerals may be different in shape.
D) A mineral always has the same shape, while a rock may be different in shape.
A) A rock can be made up of minerals, but minerals cannot be made up of a rock. Rocks have two or more materials and Minerals have one material.
Two minerals are the same hardness, color, and luster. What other test can students do to help identify the minerals?
A) They can drop the minerals to see how quickly they break.
B) They can rub the minerals together to see if one will scratch the other.
C) They can shine light on the minerals to see how much light they reflect.
D) They can rub the minerals on a ceramic plate to see what color streak they leave.
D) They can rub the minerals on a ceramic plate to see what color streak they leave.
You can classify minerals by looking at their?
D) all the above.
Which of the following best explains a hardness scale?
A) a scale that tests the hardness of a mineral by scratching other materials
B) a scale that tests the hardness of a rock by scratching other materials
C) a scale that tests the hardness of a mineral by being rubbed on other materials
D) a scale that tests the hardness of a rock by being rubbed on other materials
A) a scale that tests the hardness of a mineral by scratching other materials
How many main groups of rocks are there?
Three main groups
If a scientist found a rock that was formed from heat and pressure, how would this rock be classified?
Metamorphic
What scale is used to measure a mineral’s hardness?
Moh's Scale
A student is performing an investigation by scratching a mineral on a porcelain plate and examining the powder's color.
Which question is the student most likely trying to answer?
A) What color is the mineral?
B) Which mineral has a shinier luster?
C) What is the texture of the mineral?
D) What is the mineral's streak?
D) What is the rocks streak?
What is the characteristic of minerals that isn't that reliable when used to identify them.
What is color?
When a rock is weathered, eroded, deposited, compacted, and cemented, which type of rock is formed?
A) Metamorphic
B) Sedimentary
C) Igneous
B) Sedimentary
The way a mineral looks when it breaks apart in a irregular way
Cleavage
This is a naturally occurring, solid, that is inorganic, with a definite chemical composition and crystal structure.
What is a Mineral?
Most minerals do NOT split apart evenly. Instead, they have a characteristic type of ___________.
Breaking or Cleavage
A scientist wants to find out what type of mineral she has. What is the best way for her to find out?
A) She could look at the color, hardness, and luster.
B) She could look at the weight, hardness, and color.
C) She could look at the color, weight, and size.
D) She could look at the shape, size, and hardness.
A) She could look at the color, hardness, and luster
Igneous rocks are formed by what processes?
A) Heat and Pressure
B) Melting (molten magma) and Cooling
C) Weathering, Erosion, Deposition, Compaction, and Cementation
What is melting and cooling?
Which of these would be the least useful when identifying a mineral?
A) luster
B) hardness
C) shape
D) color
What is D) color?
Rocks with grains arranged in parallel layers is called ________?
Metamorphic
When sediments get compacted and cemented it forms what type of rock?
A) sedimentary rock
B) metamorphic rock
C) igneous rock
A) sedimentary rock
What are the ways to classify minerals?
Color
Hardness
Streak
Luster
Cleavage
When heat and pressure are applied to any rock, it forms what type of rock?
A) sedimentary rock
B) metamorphic rock
C) igneous rock
B) metamorphic rock
All minerals have the same Definite Chemical Composition.
A) True
B) False
B) False