Vocabulary
Rocks on the Move
What are Minerals?
Classifying Rocks
100
What is deposition?
The dropping of weathered rock by wind or moving water.
100
What is sediment?
Pieces of rock.
100
What mineral has the most hardness?
Diamond
100
What two things are applied to create a metamorphic rock?
Heat and pressure
200
What is an igneous rock?
A rock formed when melted rock, or magma, cools and hardens.
200
Describe how deposition can create sand dunes.
Winds may deposit a lot of sand in one area. Over time, the sand builds up and forms sand dunes.
200
What are ways in which scientists describe luster?
Metallic, earthy, glassy, and waxy.
200
What type of rock can contain fossils?
Sedimentary rocks.
300
Define weathering AND erosion.
Weathering is the process of rock breaking apart. Erosion is the process of moving weathered rock from one place to another.
300
Describe how gravity can cause weathering.
Gravity can cause rocks to fall down a cliff and break apart.
300
How can you use streak to identify an unknown mineral?
No matter what color the mineral is, the steak will always remain the same.
300
How are rocks related to minerals?
Rocks are made up of one or more minerals.
400
What is a mineral?
Any nonliving solid that has a crystal form.
400
Water erosion can change landforms. Which of the following is a landform caused by water erosion? a. landslide b. moraine c. sand dune
a. landslide
400
How do scientists use the Mohs' Scale?
Scientists use the Mohs' scale to rate the hardness of a mineral.
400
What is the rock cycle?
The rock cycle is the continuous process in which one type of rock changes into another.
500
What is luster?
Luster describes how minerals reflect light.
500
Explain how a plant can cause a rock to weather.
A plant's roots can begin growing in a small crack in a rock. As the plant grows, its roots can force the rock apart until the rock breaks apart.
500
The mineral halite breaks into cubes. Does halite have cleavage or fracture? How do you know?
Halite has cleavage. Cleavage is when a mineral breaks with smooth and straight lines. If the mineral broke into cubes, the sides would be straight and smooth.
500
Describe how an igneous rock can change into a metamorphic rock and then to a sedimentary rocks.
When an igneous rock melts and cools, it turns into a metamorphic rock. Then, as weather, erosion, and deposition occur, the rock is formed into a sedimentary rock.
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