Vocab
If a planet is habitable, what does that mean?
A planet is habitable if it can support life.
What is a rocky planet?
A rock planet is any planet with a solid surface, such as earth or mars.
What is the difference between a convergent and divergent boundary?
At a convergent boundary the plates move toward each other or come together. At a divergent boundary the plates move away from each other and divide.
How does weathering affect rock formations?
Weathering affects rock formations by breaking them down into smaller pieces.
Why do some of the beaches in Hawaii have black sand?
Some beaches in Hawaii have black sand because the sand is made of sediment that came from the igneous rock that is black in color from volcanic activity and lava.
What is a convergent boundary?
A convergent boundary is when two plates move towards each other or come together.
What are two things that are needed to make a planet habitable?
The two things are liquid water and an energy source such as the sun.
Underneath both the ocean and soil, Earth's outer layer is made out of what?
Earth's outer layer is made up of hard, solid rock.
What are the two energy sources that help transform rocks?
The two energy sources are the sun and energy from earth's interior.
Can material in sedimentary rock become igneous rock?
If sedimentary rock is subducted by plate motion into Earth's interior, it is then exposed to energy from earth's interior. it will then melt down, and cool to form igneous rock.
What is magma?
Magma is hot liquid rock below the surface of the earth.
Could Mars have been habitable in the past, if so, why?
Can two continents run into each other. Why or why not?
No because when plates move toward each other at a convergent boundary, one plate subducts underneath the other and sinks into the mantle. Also, it takes millions of years for plates to travel great distances.
Weathering is the process of rock breaking down into smaller pieces due to wind or moving water. Erosion is the movement of sediment from one place to another, cause by wind or flowing water.
What happens when two plates move away from each other?
Mantle material (magma) is added to the edges of both plates.
What is sediment?
Sediment is small pieces of rock.
What geologic process could have formed the channel on Mars?
The geologic process that could have formed the channel on Mars is flowing water.
How did the mosasaurs fossils get so far apart and how long did it take for that to happen?
The continents are on two different plates, and as the plates separated, so did the fossils. Plates move very slowly, so this took millions of years to happen.
How does energy from the sun lead to weathering?
What type of landform is found at a convergent boundary?
A trench is found at a convergent boundary.
What is a cross section?
What are the four spheres on Earth?
The four spheres on earth are hydrosphere, atmosphere, geosphere, and biosphere.
In the past, Africa used to be farther away from Europe than it is now. What could explain why Africa is closer to Europe now that it was before?
Africa and Europe are located on different plates. The plates moved slowly toward each other at a convergent boundary, as one plate subducted underneath the other.
A column of hot magma forced its way up into sedimentary rock, then it cooled and hardened into igneous rock. Overtime the sediment rock that covered the igneous rock weathered away, leaving behind the igneous rock that we can now see.
Mrs. LeVan visits the same park every week. The park has a lot of different rock formations. How does the rock at the park change from week to week?
The rock is not likely to change very much. Most rock transformation processes happen very slowly.