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Download #______ Parent Signature: Heading: The Earth`s Changing Surface
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Transcript
#________ Parent Signature: _____________________________________ Heading: __________________________ __________________________ __________________________ The Earth’s Changing Surface HOMEWORK #7 ________________________ ________________________ DIRECTIONS: o Answer the questions below in complete sentences where appropriate. 1. Which of the following are examples of constructive forces? A. Volcanoes, mountain/island building, and deposition B. Earthquakes, weathering, and erosion C. Tornadoes, hurricanes, volcanoes D. Earthquakes, tidal waves, erosion 2. What two kinds of crust are there? A. lithospheric and asthenospheric B. silicon-based and iron-based C. continental and oceanic D. outer and inner Define destructive forces. _____________ ___________________________________ ___________________________________ Which is more dense? __________________________________ 3. The hard outer layer of the Earth is called the A. Lithosphere B. Asthenosphere C. Hemisphere D. Mesosphere What two main layers make up that layer? A. Crust and core C. Mantle and core B. Crust and mantle D. Crust and Asthenosphere 4. Which statement below best describes what happens to the layers of the earth as you descend (go down) from the surface to the center. A. The temperature increases, the density decreases, and the composition increases B. The temperature decreases, the density increases, and the composition decreases C. The temperature increases, the density increases, and the composition changes D. The temperature decreases, the density decreases, and the composition changes 5. Which of the following lists the composition of the Earth’s outer core? A. calcium, potassium B. silicon, aluminum, calcium, sodium and potassium C. Mostly nickel and some iron D. oxygen, magnesium, iron, aluminum, and calcium Found where: ____________________ What is unique (special) about the Outer Core that makes it different from ALL other layers? ____________ ________________________ ________________________ 6. List the 5 sub layers in order of coolest to hottest temperature. ________________________________ ____________________________________________________________________________________ 7. List the 5 sub layers in order from the surface to the center. __________________________________ ____________________________________________________________________________________ 8. Match the 5 sub layers with the main layers they are found in. HINT: One of the sub layers is found in two of the main layers. ____________ Lithosphere A. Crust ____________ Asthenosphere B. Mantle ____________ Mesosphere C. Core ____________ Outer Core ____________ Inner Core 9. Which layer of the Earth is a solid ball of iron, has the highest density, and is the hottest? A. Lithosphere B. Crust C. Outer core D. Inner core 10. Which of the following would be the best model of the Earth's layers? A. a peach B. a water balloon C. a basketball D. a potato Explain why you chose your answer. _____________________________________________________ ____________________________________________________________________________________ 11. Which of these describes the Earth's outer core? A. cold liquid B. hot solid C. cold solid D. hot liquid Which two choices could you have eliminated instantly? ___________________________________ Explain why. _________________________________ ____________________________________________ ____________________________________________ 12. What area of the Earth's mantle is the densest? A. The entire mantle has the same density. B. the area in-between the Earth's crust and core C. the area nearest to the Earth's core D. the area nearest to the Earth's crust Explain why you chose your answer. _____________________________________________________ ____________________________________________________________________________________ 13. Did Alfred Wegener have evidence to support his Theory of Continental Drift? ____________________ Describe 2 of the 3 key pieces of evidence he used to support his theory. ________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 14. Explain why his fellow scientists didn’t accept his theory. _____________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 15. What is the name of the “Supercontinent” Alfred Wegener believed used to cover our planet? ______ ____________________________________________________________________________________
