Minerals
What are natural, non living solid crystals that make up rocks?
Minerals
What is eroded material that settles on land or on the bottom of lakes, rivers, and oceans called?
Sediment
What type of rocks form when sediments are cemented together and harden?
Sedimentary Rocks
In what type of rock can you find fossils?
Sedimentary Rock
What is the way a mineral’s surface reflects light?
Luster
Name an example of a piece of sediment.
sand, soil, small pieces of rock
answers may vary
Rocks that form from molten lava are called...
Igneous Rocks
What are remains or evidence of ancient plants and animal life on earth called?
Fossils
What do we use the Mohs Scale to test?
Hardness
What type of rock is the Grand Canyon made of?
Sedimentary Rocks
Rocks that have changed as a result of heat and pressure are called...
Metamorphic Rock
When Mt. Vesuvius erupted, what kind of rock covered the city of Pompeii?
Igneous Rock
What is the color powder a mineral leaves when it is scratched on a special plate called?
Streak
Which of these is true of rocks?
They are made up of 1 or more minerals.
They can be made of living solid crystals.
They contain at least 2 kinds of minerals.
They have a hardness of at least 7 on the Mohs Hardness Scale.
3. They contain at least 2 kinds of minerals.
Why do we study fossils?
Answers may vary. Teacher discretion
Recycling of old rock into new rock through heat, pressure, chemical reactions, weathering and erosion is called...
The Rock Cycle
Would a mineral with a Mohs Hardness Scale rating of 8 or 3 be HARDER to scratch?
8
What type of rocks can form Metamorphic Rocks?
Igneous, Sedimentary, or other Metamorphic
How do you know that the top layer of sedimentary rock is probably the youngest?
The top layer is formed by sediments that pile up over the old layers, so the top layer would be the youngest.
How can sediments turn into soil?
Weathering happens when natural processes wear down the surface of Earth. The tiny pieces mix with dead and decaying plants and animals to form soil.