Eureka Questions Earth Science Physics Chemistry. Eureka! Questions. What are the Eureka! questions? These are a set of questions designed to review material you already should have learned in science What is the purpose of these questions?
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Eureka! Questions • What are the Eureka! questions? • These are a set of questions designed to review material you already should have learned in science • What is the purpose of these questions? • To prepare all students for the Science section of the NJ ASK 8, a standardized test you take in the 8th grade
Eureka Question 1Name the layers of the Earth from the outside in toward the center. Please also draw and label a diagram of the layers.
Answer: • Runoff from minerals on land • Decaying sea life
Eureka Question 4What causes earthquakes (include a diagram with your description to illustrate)?
Answer: • Stress builds up in the Earth’s crust due to the tectonic plates pushing on one another. • Sometimes this results in a shifting of the crust.
Eureka Question 5What causes volcanoes to form (draw a diagram to illustrate)?
Answer: • Molten (melted) material from inside the Earth escapes out an opening in the Earth’s crust. • As time passes, new layers cool and harden on top of old layers, forming a conical shape.
Answer: • Magma (molten rock) under the Earth’s crust cools and solidifies directly in the crust or reaches the Earth’s surface (now lava) and then cools and solidifies
Answer: • Layers of rock fragments, soil and minerals get pressed together • Usually underwater
Answer: • Igneous and sedimentary rocks that have been changed due to high pressure and temperature
Eureka Question 9 What is weathering? How is it caused? Why is it important?(Hint: 3 part answer)
Answer: • Weathering is…. • the breaking down of rock into smaller pieces. • Mechanical • caused by water getting into cracks, freezing and expanding. • also caused by plants breaking up rocks. • Chemical • Caused by rain stripping minerals from rocks • important b/c it results in the formation of soil.
Eureka Question 10What is erosion? What are the 3 main forces of erosion on Earth?
Answer: • the moving of rock and soil that has been weathered • the changing of the Earth’s surface by this movement • 3 main forces are… • wind, water, glaciers