ERS120H5 Lecture 5: Midterm_Review_Sheet
9 Apr 2018
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Coverage: lectures 1 to 12 and practicals 1 to 4. Format: multiple choice (30 questions/60 points) short answer/matching/sketches (5 questions/40 points) Online q&a session: sunday, february 25, 8-10 pm. Lecture 2: formation and structure of the earth. Know the age of the earth and how it is determined from rocks, minerals and meteorites. Describe the formation of the solar system, including the sun and orbiting planets. Explain the process which shaped the earth into an internally layered sphere. Describe the basic composition and thickness of the major layers of the earth: crust, mantle, inner core, outer core. E(cid:454)plai(cid:374), (cid:396)efe(cid:396)(cid:396)i(cid:374)g to p(cid:396)essu(cid:396)e, te(cid:373)pe(cid:396)atu(cid:396)e, a(cid:374)d (cid:272)o(cid:373)positio(cid:374), (cid:449)h(cid:455) the ea(cid:396)th"s oute(cid:396) i(cid:396)o(cid:374) (cid:272)o(cid:396)e is li(cid:395)uid, but the inner core and the mantle are solid. List and explain five methods used to understand the structure and composition of ea(cid:396)th"s i(cid:374)te(cid:396)io(cid:396). Explain why seismic lines take a curved rather than a straight path through the earth.
