Erosion
Yes or No:
Erosion is the movement of rock and mineral grains from one place to another.
Yes
True or False:
Plants, animals and soil are all included in the crust.
True
What is the special machine called to measure earthquakes?
Seismograph
What is a technology that uses sound waves to determine the distance of an object?
Sonar
Who made the theory of the continental drift?
Alfred Wegener
Yes, No, or Maybe:
Mechanical weathering is he physical break-up or disintegration of rocks.
Yes.
If you put maybe you lose 50 points.
What is the outer core composed of?
Nickle and Iron
What are seismic waves?
Energy waves that ravel outward from the source of the earthquake.
What is the middle layer of the Earth?
Mantle
How thin can the earths crust become?
5km
What is the process responsible for "building up?"
Sedimentation
True or False:
The intense pressure of all the layers forces the inner core into a solid ball.
True
Fill in the blanks:
Two plates pushing together are called_________ plates. Two plates pulling apart are called _______ plates.
Converging & Diverging
What is the instrument used to measure the magnitude of an earthquake?
Richter Scale
What is the best junior high class?
Grade 9. jkjkjk Grade 7
If you wrote grade 9, you lose 50points. If you wrote grade 8, you lose 100points. If you wrote grade 7 full points.
Name 3 natural processes that the physical environment includes?
-Weathering
- Earthquakes
-Volcanic eruptions
What is the name of the area where two plates collide or converge?
Subduction zones
Where do fault zones exist?
Fault zones exist where tectonic plates meet
Name the place on the Surface of the Earth from where surface waves start to spread
Subduction Zone
How many kinds of seismic waves occur in an earthquake? What are they?
3 & Primary or P waves, Secondary or S waves and Surface waves
What is the most powerful cause of erosion?
Water in Motion
What does Sonar stand for?
SOund, Navigation and Ranging
Fill in the blanks:
Smaller earthquakes that occur after a major earthquake are called ______. The place under the Earth's surface where an earthquake starts is the ______. The place directly above the focus on the Earth's surface is the ________.
Aftershock. Focus. Epicenter.
What is the area of Volcanoes around the Pacific Ocean?
Ring of Fire
What is the name of the book Alfred Wegener wrote?
The Origin of Continents and Oceans