Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Changing Earth
| Question | Answer |
|---|---|
| The supercontinent landmass that scientists believe covered the earth about 250 million years ago. | Pangaea |
| The movements of the Earth’s crust, which is divided into 12 giant pieces. | Plate Tectonics |
| These are created when magma from the mantle heats up + rises, then cools + sinks. | Convection Currents |
| The process when magma from the mantle rises through cracks on the ocean floor and a new underwater mid ocean ridge is formed. | Sea-floor Spreading |
| A place where two plates meet is called a plate boundary. Name two things that can happen when plates move. | Earthquake, Volcano, Mountains, Continental drift |
| What was Alfred Wegener’s theory called? | Theory of Continental Drift |
| How many continents did Pangaea eventually split into? (AKA How many do we have today?) | Seven (7) |
| Hypothesize what the Earth will look like in another 250 million years if Continental Drift is still happening. | Continents will eventually collide into a new giant landmass again |
| List 3 pieces of evidence that support Wegener’s theory? | Fossil bands, Rock/Mountain Formations, and Climate conditions on different continents, coal beds, coastline match up |
| The three types of plate boundaries. | Convergent, Divergent, Transform |
| This type of plate boundary occurs when two plates collide. | Convergent |
| This type of plate boundary occurs when two plates slide horizontally by one another, causing rocks to break and can cause earthquakes. | Transform |
| Mantle convection can cause plates to move apart. What kind of boundary is this? | Divergent |
| List two types of events that could occur at a CONVERGENT boundary. | Mountain formation, Subduction zone (volcano, trench) |
| Name the three types of rock. | Sedimentary, Metamorphic, Igneous |
| How does sediment form? | Weathering and Erosion |
| How does igneous rock form? | Cooling Magma |
| How does metamorphic rock form? | Heat and Pressure |
| How does Sedimentary Rock form? | Compaction and Cementation |
| Weathering is the….. | Breaking down of rock into smaller pieces. |
| Erosion is the…. | Movement of Sediment |
| Deposition is the… | Settling of Sediment |
| Give an example of weathering. What causes rocks to break down? | Ice wedging, Plants, Animals, Wind, Water, Snow, Human force |
| What type of plate boundary has plates that move towards each other? | Convergent |
| What type of boundary has plates moving away? | Divergent |
| What type of boundary has plates sliding against each other? | Transform |
| What is the ring of volcanoes and earthquake activity around the Pacific Ocean? | Ring of Fire |
| What is is created when one plate sinks below another? | Subduction Zone |
Created by:
LCarnell
Popular Earth Science sets