Intro to Earth
Name one of the four spheres.
Biosphere, Geosphere, Atmosphere, Hydrosphere.
Name one of the layers of the earth?
Inner Core
Outer Core
Mantle
Crust
What are tectonic plates?
What are the two types of crust called?
Oceanic
Continental
What is one of the steps of the scientific method?
Question
Research
Hypothesis
Experiment
Analyze
In what layer can you find convection currents?
The mantle
What is pangea?
What is the difference between oceanic crust and continental crust?
Oceanic crust is younger/thin and dense.
Continental crust is older/thicker and lighter.
What are the 3 variables in an experiment?
Control
Independent
Dependent
What effect do convection currents have on the earth's surface?
They cause tectonic plates to move
Who discovered the theory of plate tectonics?
Alfred Wegener
What are the three boundaries?
Convergent
Divergent
Transform
Answers will vary.
What is caused due to sever differences in temperature which causes a circular movement?
Convection currents
What will happen when two tectonic plates slide past each other?
An earthquake
What is the belt of volcanoes called in the ocean?
Ring of Fire
Are there any 2 spheres that do not interact?
No! All the spheres interact with each other.
Which layer is a sphere of solid Iron and Nickel at the center of the Earth?
The Inner Core
What is it called when this happens? Magma rising from the mantle through the crust, creating new crust and pushing old crust further from the fault.
Sea-floor spreading
What is the difference between lava and magma?
Lava is above Earth's surface and Magma is below Earth's surface.