Rocks Rock
What type of rocks are found near volcanoes?
Igneous
What is the physical property that describes how light is reflected off of a mineral?
Luster
Ocean waves move sand from the beach. This an example of _______.
Erosion
A dark shiny rock is found that was formed quickly from lava. What type of rock is this?
Igneous
How do you test the hardness of a mineral using a fingernail or steel knife?
You see which object can scratch the mineral.
Water freezes in the cracks of a rock and then expands. Is this an example of weathering or erosion?
Weathering
heat and pressure
What is the physical property of streak?
The color of powder a rock leaves behind when scratched across a tile/streak plate.
Acid rain causes _______.
weathering or rocks breaking down
What type of rock are fossils found in?
Sedimentary
On the MOHS hardness scale, what level is a diamond?
10- the hardest
Plant roots growing in the cracks of a sidewalk are an example of ________.
weathering
Wind, rain, and other precipitation cause rocks to break down into sediment which can later be turned into _______ rocks.
Sedimentary
What physical property is tested when a rock is broken to see the shape the pieces make?
Cleavage
What is the difference between weathering and erosion?
Weathering breaks down rocks. Erosion moves sediment.