Chapter 28: Our Solar System- honors earth science

Which solar system object is most abundant in the Oort cloud? 

The apparent backwards movement of a planet

Which observation provided evidence for the heliocentric model of the solar system? 

Which characteristic must a dwarf plane have? 

Earth is the only planet known to have life. 

Which group of planets have large masses, low densities, and rocky surfaces?

the theory that the universe began as a point and has been expanding ever since

Planets move faster when close to the Sun and slower when further away

How many of the four gas giant planets have rings? 

stage of a star when hydrogen is gone so helium fusion occurs / stars expand and cool

90% of stars are in the __________.

Space objects built of solid particles that can form planets through collisions and mergers

earth's average distance from the Sun

Mathematical relationship between the size of a planets eclipse & its orbital period is p² = a³

Which inner planet has the highest average surface temperature? 

A process that creates energy through light and heat

when more massive stars become even bigger than a red giant

Which gas gives Uranus and Neptune their blue color? 

Which inner planet has retrograde rotation? 

Time it takes for a planet to orbit the Sun

material that remained after the formation of the planets and satelites 

Time it takes for a planet to spin on its axis

What causes most meteor showers? 

Jupiter, Saturn, Uranus, and Neptune are part of the ________ planets

Which hypothesis has been suggested to explain the scarps on Mercury? 

Which elements have the highest abundance in gas giant planets? 

Each planet has its own elliptical orbit 

Mercury, Venus, Earth and Mars are part of the __________ planets

Which scientist first observed the moons of Jupiter with a telescope?