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-   -   5th grade science project (http://classroom.all-science-fair-projects.com/forum/showthread.php?t=57)

Tracy B 08-21-2005 09:15 PM

5th grade science project
 
Make a three dimensional model of a doughnut-shaped eath. Place each of the present earths continents, oceans and seas on the new planet.

could such a plane actually exist in our solar system, why or why not?

Draw or paint a sunset as it would appear if you were a person living on the inner ring surface. Pinpoint your position in relation to the setting sun.

Clue---The size of the hole is equal to the diameter of the present earth.

SmartKitty 10-03-2005 02:17 PM

Purrrrr
 
interesting. Meow!

Ravencraft 10-03-2005 05:56 PM

Hmm, I think you would have to have a good knowledge of physics to understand if a donut-like planet could exist; properties of the core. I don't think it would be able to be held together, that's mainly a guess. Without the core, life wouldn't be present.
The second question depends on the angle of rotation.

TooSmart! 10-09-2005 04:19 PM

Think!
 
It is impossible as then the Earth would have no core so it could not be compared to Earth now.Their would not be the same landforms or anything :cool: :D ng!

wisteria 10-09-2005 11:46 PM

just quoting
 
I agree will there be minerals with out earth's core?

sciencefreak 10-11-2005 07:03 AM

yea....
the core wouldn't exist and what about gravity???

wisteria 10-12-2005 05:31 AM

just quoting
 
I agree sciencefreak ;) also how would overall be getting sunlight uless it is on an angle what about he bottom? :confused:

sciencefreak 10-12-2005 05:32 AM

to sum it up, the idea is good but the model is doubtful... :(

wisteria 10-13-2005 06:34 AM

I agree 'things happen for a reason' well sometimes :rolleyes:

Tamthebest 10-15-2005 12:33 AM

Yeah, good idea but...
 
You see there is a physics rule to answer the question...
"why do all planets make the shape of a sphere?"
You see its because the core always pulls things to its centre and so
imagine a sphere magnet, it would always pull the ironfillings onto its centre trying to make them into an appropriate shape which would be a sphere!

Anyway, read my signature and you will understand... :)


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