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Oceanography1 Crossword
Down
:
1) warming of planet surface by trapped heat
2) decay time of radioactive isotopes
5) discovered circumference of planet using sun angles
9) earth's 'plastic' layer, partly molten; responsible for tectonic movements
10) formulated quantitative method for plankton study
12) location of an earthquake on the earth’s surface above the focus
14) discovered mathematical model of wind-deflected currents
16) 'fire-formed' rock; formed as magma or lava cools
18) atomic energy involving combining nuclei; involves a proton-proton reaction galaxy - system of billions of stars
20) point of energy release at an earthquake
Across
:
3) invented a reliable chronometer
4) 19th century oceanographic ship
6) 20th Century oceanographic drilling ship
7) light from approaching galaxies shifted to shorter wavelengths
8) appearance of shelled forms at beginning of Cambrian (600 mya)
10) developed hypothesis of sea floor spreading
11) the process by which certain microbes create energy by using chemical reactions independent of sunlight..
13) gas giants in orbit around the sun; Jupiter, Saturn, Uranus, Neptune
15) produced charts of Pacific; used Harrison’s chronometers
17) atoms within an element that have the same atomic number but differing atomic weights
18) fracture of rocks w/movement
19) mass per unit volume
20) divided sea into life-depth zones
21) Nansen’s “ice proof” vessel
22) produced the first map of the Gulf Stream
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