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.
Eureka Question 4
What causes earthquakes earthquakes (include a diagram with (include a diagram with
your description to your description to illustrate)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 5
What causes volcanoes to volcanoes to form (draw a diagram to form (draw a diagram to
illustrate)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:• 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.
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