STEM design loop
Seafloor Spreading/Continental Drift
Igneous Rocks/Volcanoes
Sedimentary Rocks
Dating
100
What is the first step in the design loop
Identify the need
100
Who hypothesized continental drift
Alfred Wegener
100
What type of volcano would scoria be found near?
cinder cone
100
Sedimentary rocks form when sediment is...
Compacted and cemented
100
What are the two types of dating
Absolute and Relative
200
After you evaluate the prototype what comes next
Communicate the design/Redesign
200
Name two ways we study the sea floor
Sonar, Submersibles, Dredging, Drilling
200
What type of volcano is least explosive but largest in size
Sheild
200
Sediment is transported by...
Glaciers, Water, Wind, and Gravity
200
Which type of dating deals with half lives
Absolute
300
What step comes after research the problem
Develop a solution
300
Where does seafloor spreading occur
Mid-Ocean Ridges
300
What are igneous rocks classified by?
Color and texture
300
True or False Lithification begins with erosion
False
300
What is a half life
The time it takes for half of the parent atom to decay into a daughter atom
400
What comes after constructing a prototype
Test and evaluate
400
Mid-Ocean Ridges are what type of plate boundary
Divergent
400
What are extrusive rocks?
Rocks that cooled above the surface
400
True or False mud compacts more than sand
True
400
How does the law of superposition help us with relative dating?
It states that the oldest layers are on the bottom
500
How many steps are in the design loop
8. Identify the need, Research the problem, Develop possible solutions, Select the most promising solution, Construct a prototype, Test and evaluate the prototype, Communicate the design, Redesign
500
What is evidence of seafloor spreading
Magnetic field leaving evidence in the rocks, Symmetry on both sides of the ridge
500
What are three types of igneous rock textures?
Glassy, Fine grained, Coarse grained
500
What is the difference between physical and chemical weathering
Chemical weathering the minerals are dissolved or otherwise chemically changed during physical weathering minerals remain chemically unchanged and simply break off the solid rock
500
True or false absolute dating gives you an exact date of when the rock was formed
False, It will give a good estimate but it's won't give an exact date
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