Show:
Earth
Volcanoes
Earthquakes
Rocks
Minerals
100
The theory that Earth's plate are moving due to convection currents in the mantle.
What is plate tectonics?
100
A ring of volcanoes and earthquakes along the edges of the Pacific plate.
What is the Pacific Ring of Fire?
100
These occurs when plate tectonics causes a break in Earth's crust and energy is released.
What causes earthquakes?
100
When wind or water breaks down rocks into sediments.
What is weathering?
100
Any inorganic, naturally occuring, solid with a crystal structure and definite chemical composition.
What is a mineral?
200
Rocks!
What is Earth made of?
200
Plate tectonics at convergent and divergent plate boundaries.
What causes volcanoes?
200
Faults at plate boundaries.
Where do earthquakes happen?
200
When a rock is melted and cooled.
How is an igneous rock formed?
200
Mohs
What is the scale for measuring the hardness of minerals?
300
Sea floor spreading Fossils on different continents Puzzle fit of continents Mountains on different continents
How we know the plates of Earth's crust are moving?
300
Shield, Strata and Cinder cone
What are the three kinds of volcanoes?
300
1. The plates move 2. Energy is released. 3. The ground shakes.
What happens during an earthquake?
300
Wind and water make a rock smaller.
How do sediments form?
300
quartz and feldspar
What are 2 common minerals?
400
crust=shell It is thin and can crack mantle=white It is thick and liquidy core=yolk= in the center
How is the structure of Earth like an Egg?
400
The tallest most explosive volcano.
What is a Strata?
400
the Richter scale
What is the scale that measures earthquake strength?
400
igneous, metamorphic and sedimentary
What are the 3 kinds of rocks?
400
They are found in many things humans want.
Why minerals are useful?
500
Wegener's theory that the continents were moving.
What is continental drift?
500
apache tears
What is what comes out of Cinder cones?
500
the point on Earth's surface above the focus (where energy is released)
What is an epicenter?
500
The process of rocks changing from one kind to another.
What is rock cycle?
500
by their luster, streak, hardness, color, cleavage, fracture and other properties.
What is how minerals are identified?