Name
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1.
Science Chapter 8 Study Guide
Rocks and Minerals
Rocks are made of one or more types of Minerals.
2.
What are minerals?
Different kinds of crystals that make up rocks
What do minerals form?
Minerals form different types of rocks
3.
What is Mica?
Mica is a common mineral that forms rocks
4.
Which mineral has a hardness of 7 on the Moh’s Scale?
Quartz has a hardness of 7 on the Moh's Scale
5.
According to the Moh’s Scale of Hardness Talc is a very Soft mineral.
6.
What is weathering?
Weathering is a natural process that breaks rocks into smaller pieces
7.
What makes up soil?
Soil is made of broken pieces of rock, plant and animal remains, and live
animals
8.
Look at the picture below
What type of rock is shown in this picture? Sedimentary Rock
9.
Define and describe Sedimentary Rocks.
Sedimentary Rock is rock formed when layers of sediment harden and
stick together.
10.
Which of these can form fossils?
A.
Skin, hair, and muscles
B.
Igneous and sedimentary rocks
C.
Bones and leaves
D.
Composite rocks and plants
1.
Define and describe Igneous Rocks?
Igneous rocks are rocks that form from magma or lava that cools and
hardens. Igneous rocks can be formed above ground and below ground.
2.
Look carefully at the illustrations below
Obsidian
Granite
Gabbro
Pegmatite
Which is an example of igneous rock that has cooled very quickly?
Obsidian is an example of igneous rock that has cooked very quickly.
3.
Igneous rock is always made of melted rock that has cooled.
4.
Define and describe metamorphic rock?0
Metamorphic rocks that form from igneous rock, sedimentary rock, or other
metamorphic rock as a result of heat and pressure.
5.
At very high temperature and pressures, granite can become gneiss. What
kind of rock is this? This is Metamorphic Rock
6.
How can Sedimentary Rock form into Metamorphic Rock?
Sedimentary rock changes to Metamorphic rock by applying heat and
pressure
7.
When Sedimentary Rock melts, what kind of rock forms?
Igneous Rock forms when sedimentary rock melts.
8.
What three things can Scientists tell from a fossil?
From a fossil scientists can tell how many years ago an animal lived, what
types of plants and animals lived there in the past, and what the
environment was like.
9.
Explain how soil forms and what soil contains.
Soil forms when weathering causes rocks to break apart. Soil contains
small bits of rock, decaying plants and animals, and tiny life forms.