originI

GLY150: INTRODUCTION TO OCEANOGRAPHY

University of North Carolina Wilmington

I. Scientific Methods

Terms Used in Describing the Nature of Science
- Fact
- Hypothesis
- Law
- Theory
International System of Units (metric units)
- Length = meter (m)
- mass= kilogram (kg)
- time= second (s)
- temperature= Kelvin °K=°C +273.2
Periodic Table
- Chemistry background

II. Origin of Universe, Solar System, Earth

Planet	Radius [km]	Mass 1=Earth	Density [g/cm3]	Distance from Sun [AU]	Rotation [hours, days]	Ts [k]	Atmos. Gases
Sun	695000	329000	1.41	0.0		6000
Mercury	2439	0.055	5.43	0.39	58.6d	450	Na
Venus	6051	0.815	5.24	0.72	-243d	283	CO₂, N
Earth	6370	1.000	5.51	1.00	23.94h	250	N,O
Mars	3390	0.107	3.93	1.52	24.62h	220	CO₂,N,Ar
Jupiter	71600	317.8	1.33	5.2	9.3h	105	H,He,CH₄,NH₃
Saturn	60300	95.20	0.68	9.54	10.5h	75	H,He,CH₄,NH₃
Uranus	24100	14.5	1.60	19.18	-17.24h	50	H,He,CH₄
Neptune	22500	17.2	1.65	30.07	16h	40	H,CH₄,He?
Pluto	~1140	0.002	0.5	39.44	6.4d	40	CH₄

1K=-273C, Ts=surface temperature, A.U.=Astronomical Unit, negative rotation period indicates rotation opposite to orbit direction about the sun.

Terrestrial Planets (Earthlike) - rich in metals and rocky material
- Mercury
- Venus
- Earth
- Mars
Jovian Planets - dominated by ices
- Jupiter
- Saturn
- Uranus
- Neptune
- Pluto (dwarf planet)

IV. Earth's Interior Structure