Sediments are tiny particles of rocks, minerals, plants, bones, shells, and other animal materials.
100
What are metamorphic rocks?
rocks that have changed to to intense heat and pressure
200
What are minerals?
Minerals are natural, nonliving substances that make up rocks. Minerals are made of elements.
200
How are igneous rocks formed?
They are formed when magma or lava cool and harden.
200
Chalk used in schools is made out of what kind of sedimentary rock?
Limestone
200
Does a rock stay the same forever?
Rock is always being changed either by weathering, compaction, melting, or through pressure and heat.
300
What is Mohs' Hardness Scale?
Mohs' Hardness Scale shows the hardness of minerals from softest to hardest.
300
I am an igneous rock. I am black and shiny. What am I?
Obsidian
300
Bituminous formed over millions of years when dead plants were buried in ancient swamps and forests. What is a common name for Bituminous?
coal
300
What would cause a sedimentary rock to become metaphoric?
Intense heat and pressure deep within Earth causes sedimentary rock to become metamorphic rock.
400
Name a mineral that can scratch feldspar.
Quartz, topaz, corundum, or a diamond.
400
What are some uses of igneous rocks?
Granite is strong, so it can be used in building materials such as; schools, office buildings, roads, and homes.
400
Suppose fossils are found in upper layers of sedimentary rocks. Some are found in lower layers. Which fossils are probably older?
The fossils found in the lower layers.
400
How is anthracite coal different from bituminous coal?
Anthracite coal is found deeper in Earth's layers. It burns cleaner and longer.
500
How are ores and gems alike? How are they different?
Ores and gems are both mined from the earth. Ores are valued for their usefulness, while gems are valued for their beauty.
500
Name the four minerals listed in our textbook that make up the rock Granite.
feldspar, quartz, mica, and hornblende
500
If we keep digging up coal and using it for energy. Do you think that we will always have coal to use for energy? Explain?
If we keep mining all the coal in the earth we will probably dig up all the coal before their is enough time for the earth to naturally make more.
500
What is the rock cycle?
Magma cools into igneous rocks, the igneous rocks are broken over time into bits and carried away. Pressure over time cements the pieces together forming sedimentary rocks. The rocks are reburied underground and after a long time pressure and heat change them to metamorphic rocks. Eventually, they become so hot they melt and become magma again.