Chapter 28: Our Solar System- honors earth science

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

Which inner planet has the highest average surface temperature? 

when more massive stars become even bigger than a red giant

Each planet has its own elliptical orbit 

The apparent backwards movement of a planet

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

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

Which inner planet has retrograde rotation? 

Time it takes for a planet to orbit the Sun

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

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

A process that creates energy through light and heat

What causes most meteor showers? 

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

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

Time it takes for a planet to spin on its axis

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

Earth is the only planet known to have life. 

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

earth's average distance from the Sun

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

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

material that remained after the formation of the planets and satelites 

Which gas gives Uranus and Neptune their blue color? 

Which characteristic must a dwarf plane have? 

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

Which elements have the highest abundance in gas giant planets? 

90% of stars are in the __________.