Rock Types
Soil
Rocks vs. Minerals
Weathering and Erosion
Fossils
100
Which of these rocks is a metamorphic rock?
a. Granite
b. Gneiss
b. Gneiss
100
What is the layer of soil above top soil?
Humus
100
True or False:
All rocks have a repeating crystal structure.
False.
MINERALS have a crystal structure. ROCKS are aggregates, or made up of a mixture of minerals.
100
Name the process of breaking down rocks into smaller pieces.
Weathering
100
What physical characteristic would you use to determine what this fossil is?
a. Location
b. Color
c. Shape
d. Age
Shape
200
How are sedimentary rocks formed?
Sedimentary rocks are formed by the compaction of sediments.
200
If soil contains too much water, how will plants be affected?
The plants will not grow as well, and will not have a strong, stable root system.
200
True or False:
All minerals have a repeating crystal structure.
True
200
What is the relationship between weathering and erosion?
WEATHERING breaks down the rocks and then EROSION moves the sediment to a different place.
200
Where would this fossil be located? Choose the BEST answer.
a. Beach
b. Forest
c. Desert
Forest
300
Igneous rocks are made of ___________.
cooled magma
300
What is the DEEPEST soil layer?
Bedrock
300
How are metamorphic, igneous, and sedimentary rocks classified?
They are classified by how they were formed:
Sedimentary--Compaction
Igneous--Melting
Metamorphic--Heat and Pressure
300
When a rock or mineral has been weathered, what are the little bits of weathered material called?
Sediment
300
What type of fossils are formed from minerals replacing the hard parts of an organism after it is buried in sediment?
Mineral Replacement
400
What type of rock is formed by using HEAT and PRESSURE?
Metamorphic Rock
400
What makes up the subsoil?
Clay
400
How are minerals classified?
Minerals are classified by their color and structure.
400
How do plants affect erosion?
The roots of plants hold the soil in place and help to prevent erosion.
400
What is amber?
Hardened Tree Resin
500
Which of these rocks is an igneous rock?
a. Gneiss
b. Obsidian
b. Obsidian
500
Why is humus an important element of soil?
Humus is decayed organic material that acts as fertilizer for new plant growth.
500
Which are true about rocks AND minerals?
a. Both have a repeating structure.
b. Both are aggregates.
c. Both are naturally made.
d. Both are solid material.
c. Both are naturally made.
d. Both are solid material.
500
Name a force of nature that can cause BOTH weathering and erosion.
Wind
or
Moving Water
500
How is an amber fossil different that an impression fossil?
An amber fossil preserves the entire organism and an impression fossil only preserves the imprint or shape of the organism.