Rocks and Mineral
What are the 3 major types of rocks?
Igneous, Metamorphic, Sedimentary
Rain washing away soil from a hillside
Erosion
In what kind of rock can fossils be found?
Sedimentary Rocks
Topsoil which contains the HUMUS is the soil layer best for growing plants.
True
his rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?
Sedimentary Rock
A naturally occurring, inorganic solid with a crystal structure and a definite chemical composition is referring to
Mineral
The process of breaking up rocks on Earth's surface is called...
Weathering
Where can the oldest layer be found?
At the bottom
The layer of soil which the topsoil is found.
Horizon A
Which type of rock is formed from INTENSE heat and pressure?
Metamorphic Rock
How light reflects off of a mineral is called the mineral's
luster
Waves dropping sand on the beach
Deposition
States that younger rocks lie above older rocks if the layers have not been disturbed
Law of Superposition or Relative Dating
Law of Superposition
Soil is composed up of
Air, Water, and Soil Particles
This rock formed when bits of other rocks became pressed into a solid. What type of rock is it?
Sedimentary Rock
Which type of igneous rock forms above ground?
Extrusive Rock
Water getting into cracks, freezing, and breaking the rocks or pavement apart
Weathering
Used to determine whether an object is older or younger than other objects
Law of Superposition or Relative Dating
Relative Dating
Humus is.....
Decayed Organic Matter
This rock was formed when molten rock cooled into a solid. What type of rock is it?
Igneous Rock
A student found a substance that he thought was a mineral. The substance fell out of the container and the liquid spilled all over the floor. Why is the substance not a mineral?
It is a liquid
Deltas forming at the mouths of rivers
Deposition
Superposition means that in an undisturbed sequence of sedimentary rocks, which of the following is true?
The oldest rocks are on top.
The youngest rocks are in the middle.
The youngest rocks are on the top.
There is no way to know which layers are older.
The youngest rocks are on the top.
What soil horizon contains leaf litter and organic matter
Horizon O
This rock formed when lava cooled very quickly on Earth's surface. What specific type of rock is it?
Extrusive Igneous Rock