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Rev. Green

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fergy

Density

Is iron denser than ice on the moon?
03:46 Wed 22nd Jun 20051 answer, last by Rev. Green 20:04 Wed 04th Aug 2010
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BethAnn43

Stars

What causes different stars to appear in the sky at different times of the year?
02:48 Mon 02nd May 20051 answer, last by Rev. Green 20:01 Wed 04th Aug 2010
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Science help

chemical changes

A ship sinks in very deap water. why does it take longer to rust than a ship that has sunk in shallow water?
18:16 Thu 05th May 20051 answer, last by Rev. Green 19:51 Wed 04th Aug 2010
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babybella

heluim

what other property of heluim makes it good for filling airships?
12:13 Wed 30th Mar 20051 answer, last by Rev. Green 19:48 Wed 04th Aug 2010
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TenFootDrop

Electric

What are the materials that let an electric current flow through them easily called??
20:35 Thu 03rd Mar 20051 answer, last by Rev. Green 19:45 Wed 04th Aug 2010
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jess12

cooper

does copper melt
15:30 Fri 11th Mar 20051 answer, last by Rev. Green 19:43 Wed 04th Aug 2010
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I. Dunno

pencils

why is a lead pencil called a lead pencil?
21:39 Fri 18th Mar 20051 answer, last by Rev. Green 19:37 Wed 04th Aug 2010
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Rattle Bag

Motion querey

A truck is travelling towards me at ..say..50kmph. I throw a stone at it, it hits the truck and bounces off back towards me. The stone's speed has gone from a positive to a negative value, passing...
14:28 Fri 28th Jan 20051 answer, last by Rev. Green 19:34 Wed 04th Aug 2010
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Bladvak

Ummm

How come birds can fly but we can't! please keep the answer simple- im not that smart  
15:47 Thu 09th Dec 20041 answer, last by Rev. Green 19:25 Wed 04th Aug 2010
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Marie Kelly

candle burning

which candle would burn faster a dark or light colored candle
14:13 Thu 30th Dec 20041 answer, last by Rev. Green 19:15 Wed 04th Aug 2010
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mickymc

sound

why does sound travel faster in helium
17:53 Wed 17th Nov 20041 answer, last by Rev. Green 19:12 Wed 04th Aug 2010
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Rev. Green

Wheelchair stability

Is there an attachment, or modification, which makes a wheelchair stable. Grandma(90) has a lightweight, attendant-propelled, wheelchair which has two large wheels at the back and two small wheels at...
19:59 Tue 03rd Aug 20107 answers, last by marcwebster 02:26 Wed 24th Oct 2012
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fr3shswagg

Gravity

Why don't you notice gravity between all objects?
22:55 Tue 19th May 20091 answer, last by Rev. Green 21:09 Tue 03rd Aug 2010
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kjohnbb

which type of solution is one with a pH of 8?

which type of solution is one with a pH of 8?
19:34 Wed 20th May 20091 answer, last by Rev. Green 21:06 Tue 03rd Aug 2010
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sashabashasa

what acid is made by our muscles?

what acid is made by our muscles?
18:05 Wed 03rd Jun 20091 answer, last by Rev. Green 21:03 Tue 03rd Aug 2010
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mole.samanth

earth

the earths atsmosphere is primarily composed of what?
17:55 Sat 06th Jun 20091 answer, last by Rev. Green 21:01 Tue 03rd Aug 2010
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anthony07118

weight

dose weight change at different elevations
15:41 Wed 03rd Jun 20091 answer, last by Rev. Green 20:55 Tue 03rd Aug 2010
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Rev. Green

Black Hole Evaporation

How does a black hole evaporate? If it is not rotating and not charged then it can lose its mass by gamma ray Hawking radiation, but what if it is charged? The particle which removes the remaining...
10:29 Wed 28th Jul 20108 answers, last by Rev. Green 20:40 Tue 03rd Aug 2010
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DrCarioca

Water Pressure

Let’s say you take an empty, 5-gallon jerry can, put it on a rope (with some weights) and lower it 2,000 feet into the ocean. When you bring it back up it will be completely squashed. Now, if...
20:08 Wed 28th Jul 20105 answers, last by jomifl 14:34 Mon 02nd Aug 2010
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David90

Battery

Does a fully charged battery weigh more than the same battery when discharged albeit by a very minuscule amount ?
14:06 Sun 07th Feb 201011 answers, last by jake-the-peg 15:19 Fri 19th Feb 2010

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