What are some questions about plate tectonics?
Plate tectonics test questions
- Which is the correct order for the layers of the Earth?
- Which is the thinnest layer of the Earth?
- What is slab pull?
- Where are earthquakes created?
- Which is lighter: oceanic or continental crust?
- How does a collision zone differ from a destructive plate boundary?
What are plate tectonics ks3?
If Earth was the size of an egg, the Earth’s crust would be as thin as the eggshell. And like an eggshell, the crust has cracked and split into many different pieces called tectonic plates. These plates can be oceanic, meaning they’re found mainly under the ocean, or continental, and mainly found under land.
What is slab pull when newer less dense crust sinks?
It is now thought that plate movement is driven by a mechanism called slab pull. Slab pull occurs where older, denser tectonic plates sink into the mantle. As these older sections of plates sink, newer and less dense sections of plate are pulled along behind.
Why do the plates move ks3?
The plates move because of convection currents in the Earth’s mantle. These are driven by the heat produced by the natural decay of radioactive elements in the Earth. Where tectonic plates meet, the Earth’s crust becomes unstable as the plates push against each other, or ride under or over each other.
What causes plate tectonics to move?
Earth’s crust, called the lithosphere, consists of 15 to 20 moving tectonic plates. The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
What do most scientist believe is the main driving force for plate tectonics?
The driving force behind plate tectonics is convection in the mantle. Hot material near the Earth’s core rises, and colder mantle rock sinks. “It’s kind of like a pot boiling on a stove,” Van der Elst said.
How do tectonic plates move GCSE?
Plates are extremely heavy so gravity acts upon them, pulling them apart. Alternatively, as shown in the diagram, convection currents under the Earth’s crust transfer heat, which rises through the surface and cools back down in a circular motion. The convection currents move the plates.
What is a tectonic plate ks2?
Tectonic plates are pieces of the rocky outer layer of the Earth known as the crust. These plates are constantly moving, and volcanoes, earthquakes and sometimes mountains are found at the plate boundaries.
What is the difference between slab pull and ridge push?
‘Ridge Push’ and ‘Slab Pull’ are thought to be the major forces driving the motion of oceanic plates. Ridge push is caused by the potential energy gradient from the high topography of the ridges. Slab pull is caused by the negative buoyancy of the subducting plate.
How does slab pull move tectonic plates?
“slab pull” As lithospheric plates move away from midocean ridges they cool and become denser. They eventually become more dense than the underlying hot mantle. After subducted, cool, dense lithosphere sinks into the mantle under its own weight. This helps to pull the rest of the plate down with it.
What is the crust made of?
The crust is made of solid rocks and minerals. Beneath the crust is the mantle, which is also mostly solid rocks and minerals, but punctuated by malleable areas of semi-solid magma. At the center of the Earth is a hot, dense metal core.
What is an earthquake ks3?
An earthquake is a sudden shockwave caused by rocks being under stress from the movements of plates at plate boundaries. Eventually the stress in the rock builds up enough to deform and reach breaking point. At that point, the stored up energy is released in the form of shockwaves.
What is volcanoes Key Stage 3 geography?
Volcanoes (Key Stage 3 – Geography) A quiz designed to reinforce the vocabulary associated with volcanoes. Earth Shock (Key Stage 3 – Geography) Earth Shock is designed to introduce the students to the key words related to the construction of the Earth and plate movements.
What do you know about plate tectonics?
Tectonic Plates are responsible for shaping the earth’s crust. Every continent formed rises above the sea due to plate tectonics. It causes earthquakes, volcanoes, the rise of mountains etc. The following quiz tests your knowledge on Plate Tectonics. Good Luck! 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.
What are the Key Stage 3 geography quizzes?
Erosion on the Coast (Key Stage 3 – Geography) KS3 Coasts and coastal erosion quiz based on a study of The Holderness Coast. Volcanoes (Key Stage 3 – Geography) A quiz designed to reinforce the vocabulary associated with volcanoes.
How many questions are on the plate tectonics test?
This test covers Activities 1,2,3 of Ch.2 on Plate tectonics. This is a two part test. The first part is 15 multiple choice questions and the second part is an essay. You may only use your homework to assist you. Good luck!