Minerals
Which mineral is the softest on Mohs hardness scale and which mineral is the hardest?
Talc is the softest, diamond is the hardest.
What category of rock could be used to describe rock that has formed after magma cools?
What is a natural resource?
Materials or substances that occur in nature and can be used for economic gain.
Rocks that are exposed to wind, rain, and other precipitation are starting the process of becoming what kind of rock?
Sedimentary
What science tool might I use to look at bacteria?
A microscope.
When a mineral breaks all bumpy and uneven would be describing what property of a mineral?
Fracture.
Which type of rock can contain living matter?
Sedimentary rocks can contain fossils.
Name 2 renewable resources and 2 nonrenewable resources.
Renewable:
Water, Solar, Plants, Animals, etc.
Nonrenewable:
Oil, natural gas, coal, rocks, minerals, etc.
Water freezes in a crack of a rock over and over, eventually cracking the rock in half. What is this process called?
Weathering.
Miriam takes a magnifying glass into her backyard. What might Miriam be examining with her magnifying glass?
Insects, something small, etc.
What property of a diamond would make it useful for drilling?
It's hardness.
What is the difference between a mineral and a rock?
Minerals are the building blocks of rocks and cannot be made up of anything but the mineral. Rocks can be made up of one or more minerals.
To fertilize plants.
What is the sudden movement of rocks and soil down the side of a hill because of gravity and rain.
A landslide or mudslide.
What are streak plates made out of?
Porcelain.
Name all the properties of minerals.
Hardness, Streak, Luster, Cleavage/Fracture, Magnetism, and Color.
True or False
A rock will never be anything other than what it already is. (It cannot switch from igneous to metamorphic to sedimentary)
False.
Name at least 4 natural resources in Florida.
Limestone, wetlands, phosphate, silica, sunlight, water, etc.
Describe 2 ways a rock can be weathered and 2 ways a rock can be eroded.
Answers will vary.
Calcium, phosphorus, magnesium, sodium, potassium, chloride, sulfur, iron, manganese, copper, iodine, zinc, cobalt, fluoride and/or selenium
What level would a mineral be on mohs hardness scale if it could be scratched by a steel nail?
6.5
Igneous rock that has fine-grained crystals.
Extrusive igneous rock.
What is the role of the oceans in the water cycle?
Oceans store large amounts of water before evaporation.
The difference between physical and chemical weathering is...
Physical weathering just breaks things apart and chemical weathering changes the rocks forever/changes its chemical composition.
Describe how rocks can change in the rock cycle.
An igneous rock can become sedimentary when it gets weathered down into sediments, those sediments erode, and deposit into a body of water. As those sediments layer and layer they become sedimentary rock. As that sedimentary rock continues to layer and get deeper into the ground, it will come into contact with extreme heat and pressure and become metamorphic rock. If that metamorphic rock gets hot enough, it will become molten rock and when that molten rock cools, it becomes igneous rock again.