Vocabulary
What is a geologist?
A scientist that studies rocks
What are the types of rocks
igneous, metamorphic and sedimentary
What is a streak?
the color of the powder left behind when you rub the mineral against a tile
what is weathering?
What is the process of rocks changing from one kind of rock to another over a long period of time?
The rock cycle
What are minerals?
Minerals are solid substances found on Earth, in rocks, soil and water.
How are igneous rocks formed?
It is formed from a soft fluid life substance called magma.
What is the scale used to measure the hardness of a mineral?
Moh's Hardness Scale
what is erosion?
the process of eroding or being eroded by wind, water, or other natural agents.
What are two ways people use rocks?
buildings, jewelry, walls, roads, decorations, countertops
Minerals come from plants or other living things. True or false.
False
When any kind of rocks are worn away by rain, wind and other elements. Wehn rocks along with minerals are carried away to a different place. There may combine with other minerals such as mud. The settled matter is called sediment. As layers of the sediment build up over thousands of years they are compressed throgehter and become bonded together forming sedimentary rock
what is weathering?
the process of wearing or being worn by long exposure to the atmosphere.
What rocks are formed from weathering and erosion?
Sedimentary rocks
What happens if an igneous rock weathers? What rock does it turn into?
Minerals are the same on the inside as they are on the outside. True or false.
True because they are pure and made through the same substance throughout
How are metamorphic rocks formed?
When other rocks are affected by great temperatures and pressures.
What is luster?
The way light reflects off a mineral
What rocks are caused by magma
Igneous
What is the hardest mineral?
Diamond
What are the properties used to categorize minerals?
color, luster, hardness, and streak
Is the rock cycle a fast or slow cycle?
slow they go from one form to another over many many thousands of years.
I can see this property just by looking at a mineral
the color
What rocks are caused by great temperatures and pressures?
Metamorphic
What are the 5 ways to test the properties of a mineral?
What is luster, streak, hardness, color and cleavage or fracture