Rock Cycle
What are the three types of rocks?
Igneous, Sedimentary, Metamorphic
What are the large pieces of Earth’s crust called?
Tectonic Plates
What is the outermost layer of the Earth called?
Crust
What do we call shaking of the ground caused by plate movement?
Earthquake
What was the name of the scientist who came up with the idea of continental drift?
Alfred Wegener
What type of rock is formed from cooled lava?
Igneous Rock
What happens when two plates push against each other?
Mountains can form or earthquakes can happen
Which layer of the Earth is made of hot, melted rock?
Mantle
What is a big wave caused by an earthquake in the ocean?
Tsunami
What was the name of the supercontinent that Wegener said existed long ago?
Pangaea
What type of rock is made from heat and pressure?
Metamorphic
What is the place where two tectonic plates meet called?
A boundary
What is the very center of the Earth called?
Core
What do we call the area around the Pacific Ocean where most volcanoes and earthquakes happen?
Ring of Fire
What is the idea that the continents slowly move over time called?
Continental Drift
What do we call small pieces of rocks and minerals that can turn into sedimentary rock?
Sediment
What causes tectonic plates to move?
Heat from inside the Earth, causing convection currents
The Earth's core is made mostly of which two metals?
Iron and nickel
What is a mountain that erupts with lava called?
Volcano
What are two types of evidence Wegener used to support his theory?
Fossils and matching continents
What is the process called when rocks break down into smaller pieces?
Weathering
What landform can be created when one plate slides under another in a subduction zone?
Volcanoes or deep ocean trenches
What layer do we live on?
When two plates push together and one sinks under the other, what type of natural disaster can this cause?
A volcanic eruption or earthquake
Why didn’t other scientists believe Wegener at first?
He couldn’t explain how the continents moved