Title: OCR Document
Author: Readiris
Last saved by: Sandoz
Company: I.R.I.S.

Earth Science ch 23
Name _________________
Define the following    Key Science Words
a. asteroid

b. astronomical unit 

c. comet

d. Earth

e. Great Red Spot 

f. inner planet

g. Jupiter

h. Mars

i. Mercury

j. meteor

k. meteorite

1. Neptune

m. Oort Cloud 

n. outer planet 

o. Pluto

p. Saturn

q. solar system 

r. Uranus

s. Venus

Match each phrase with the correct term from the list of Key Science Words.

______1.   any of the four solid, rocky planets close to the sun
______2.   planet most like Earth in size and mass 
______3.   planet with carbon dioxide ice caps
______4.   Ganymede and 10 are two of its moons
______5.   planet that could float on water
______6.   most are large, gaseous planets
______7.   blue-green planet with cloud bands and storm systems
______8.   large group of comets beyond Pluto's orbit
______9.   a rock that enters Earth's atmosphere
_____10.   a meteoroid that strikes Earth