Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
!"ES_FC_AST#2QUIZ
!"FC ES Astronomy Quiz # 2 Review
| Question | Answer |
|---|---|
| The solar system consists of many types of _____________ ______________. | celestial bodies |
| There are essentially two types of planets in our solar system: rocky, ____________ planets and the _____ giants. | terrestrial , gas |
| ______________, Venus,________ , and Mars are the four ______________ terrestrial planets consist mostly of solid _________ . | Mercury, Earth, inner , rock |
| Of the terrestrial planets, the Earth is most ____________ . | dense |
| Venus is often called Earth’s twin because it’s _____________ is nearly identical. | size |
| The _____________ belt divides the terrestrial and ______________ planets. | asteroid, Jovian |
| The four outer planets, Jupiter, Saturn, Uranus, and Neptune, are _____ ________ consisting of thick, outer layers of _____________ materials (perhaps with small rocky cores). | gas giants , gaseous |
| The outermost dwarf planet, Pluto, has an ___________ composition, but it appears to be solid and _____________________. | unknown , terrestrial |
| Moons are natural _____________ of planets that vary widely in _______________ . | satellites , composition |
| Comets ___________ the sun and consist mostly of frozen _________. | orbit, gas |
| A comets gasses ___________ as they get farther from the sun and ___________ as they approach the sun in their orbits. | freeze, thaw |
| ___________________ are rocky or metallic __________ objects ranging in size from millimeters to kilometers. | Asteroids , iron |
| Asteroids are the source of most _____________. | meteorites |
| _______________ Laws govern planetary motion. | Kepler’s |
| Models of the solar system have evolved from ___________________ to_________________ . | geocentric ,heliocentric |
| There are different theories that explain the creation of the ____________ universe including the universe theory and the Big Bang theory. | oscillating, |
| Astronomers use a unit called a _________ ____________ to measure distance in space. | light-year |
| A light-year is the distance the light travels in _____________ ______________, or about 9.5 x 1012 kilometers. | one year, |
| Much of our knowledge about the solar system is the result of ___________________ ______________ ________________. | space exploration efforts |
| There have been many major events in space exploration from ____________ missions to unmanned _______________ ______________. | manned, robotic probes |
| The ________ ___________ _________ is our best current model for the origin of the universe. | Big Bang theory |
Created by:
tbfreema
Popular Earth Science sets