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The force of attraction, or pull, between any two objects. - PowerPoint PPT Presentation


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The force of attraction, or pull, between any two objects. What is gravity?. One complete trip around the Sun. What is a revolution?. This is how long it takes Earth to make one revolution around the Sun. What is 365.25 days?. This is how long it takes Earth to make one rotation on its axis.

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What is 365.25 days? around the Sun.







What is a tide? large bodies of water.



What is a phase? large bodies of water.



What is a solar eclipse? the Sun and Earth.





What is: new moon.





What is a planet? own light.



What are meteors? own light.





What is rock? own light.



What is a moon? own light.









What is through the use of space probes (a vehicle carrying instruments sent to explore objects in space) and rovers (small robot cars)?


An object in space that produces its own heat and light. instruments sent to explore objects in space) and rovers (small robot cars)?


What is a star? instruments sent to explore objects in space) and rovers (small robot cars)?


An exploding star. instruments sent to explore objects in space) and rovers (small robot cars)?


What is a supernova? instruments sent to explore objects in space) and rovers (small robot cars)?


This is about 5.9 billion miles. instruments sent to explore objects in space) and rovers (small robot cars)?


What is a light-year? instruments sent to explore objects in space) and rovers (small robot cars)?


All stars form out of this. instruments sent to explore objects in space) and rovers (small robot cars)?


What is a nebula? instruments sent to explore objects in space) and rovers (small robot cars)?


The stage of a star’s cycle where it is small and dense. instruments sent to explore objects in space) and rovers (small robot cars)?


What is a white dwarf? instruments sent to explore objects in space) and rovers (small robot cars)?


Patterns formed by stars. instruments sent to explore objects in space) and rovers (small robot cars)?


What are constellations? instruments sent to explore objects in space) and rovers (small robot cars)?



What is black hole? that light cannot escape it.


These hold billions of stars. that light cannot escape it.


What is a galaxy? that light cannot escape it.


This forms a new nebula. that light cannot escape it.


What is supernova? that light cannot escape it.


Draw a picture of these four galaxies: ovoid elliptical, irregular, disc-shaped elliptical, and spiral.


Ovoid Elliptical irregular, disc-shaped elliptical, and spiral.

http://jtgnew.sjrdesign.net/images/galaxies_elliptical_ngc1132_hst.jpg

Irregular:

532px-Irregular_galaxy_NGC_1427A_(captured_by_the_Hubble_Space_Telescope).jpg

Disc-shaped elliptical:

http://mainahalim.files.wordpress.com/2011/01/sombrero-galaxy.jpg

Spiral:

http://upload.wikimedia.org/wikipedia/commons/c/c5/M101_hires_STScI-PRC2006-10a.jpg


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