Earth/Life/Biology

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TDobes | Saturday, December 18, 2004 - 6:57pm

Length (minutes):

Age Category:

7th grade and up

Teacher Guide:

Synopsis:

Possible causes of mass extinctions like supernovas, cosmic impacts

TDobes | Saturday, December 18, 2004 - 6:57pm

Length (minutes):

Age Category:

6th grade and up

Teacher Guide:

Yes

Synopsis:

How planets form & life beings, life elsewhere, methods of contact

TDobes | Saturday, December 18, 2004 - 6:57pm

Length (minutes):

Age Category:

3rd to 5th grade

Teacher Guide:

Synopsis:

The atmosphere, water, land, and life of Earth; basic geology

TDobes | Saturday, December 18, 2004 - 6:44pm

Length (minutes):

Age Category:

K to 2nd grade

Teacher Guide:

Yes

Synopsis:

Earth as a planet: the atmosphere, water, land, and life