Ask an Expert: Grades 9-12: Physical Science

Grades 9-12: Physical Science

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Spare-Change Circus: Walking Coins on a (Vertical!) 'High Wi

Last post by Craig_Bridge « Thu Feb 03, 2011 5:16 pm
Replies: 4
by sparemeafew » Wed Jan 19, 2011 5:56 am

4 Replies

4453 Views

Last post by Craig_Bridge
Thu Feb 03, 2011 5:16 pm
Question on independent variable

Last post by edneu3 « Thu Feb 03, 2011 1:31 pm
Replies: 1
by rvgene » Thu Feb 03, 2011 9:27 am

1 Replies

6143 Views

Last post by edneu3
Thu Feb 03, 2011 1:31 pm
NEED HELP ON SCIENCE FAIR DESPERATELY

Last post by agm « Tue Feb 01, 2011 12:26 pm
Replies: 1
by brennanclh » Thu Jan 27, 2011 4:03 pm

1 Replies

4396 Views

Last post by agm
Tue Feb 01, 2011 12:26 pm
Tea tannins extraction. please help?!

Last post by barretttomlinson « Sun Jan 30, 2011 4:23 am
Replies: 1
by Thesciencekid1212 » Sat Jan 29, 2011 1:49 pm

1 Replies

5517 Views

Last post by barretttomlinson
Sun Jan 30, 2011 4:23 am
Bingham plastic model explanation.

Last post by barretttomlinson « Sun Jan 30, 2011 2:52 am
Replies: 1
by braeden1 » Sat Jan 29, 2011 8:25 pm

1 Replies

4586 Views

Last post by barretttomlinson
Sun Jan 30, 2011 2:52 am
Seeking feedback about earthquake and levitation

Last post by michaelb « Sat Jan 29, 2011 12:53 am
Replies: 4
by michaelb » Wed Jan 19, 2011 1:42 am

4 Replies

4527 Views

Last post by michaelb
Sat Jan 29, 2011 12:53 am
Lightweight Truss Design

Last post by Craig_Bridge « Thu Jan 27, 2011 9:04 pm
Replies: 2
by nate427 » Mon Jan 24, 2011 7:07 pm

2 Replies

6834 Views

Last post by Craig_Bridge
Thu Jan 27, 2011 9:04 pm
testing which materials allows radio waves to travel faster

Last post by robertreavis « Thu Jan 27, 2011 4:02 pm
Replies: 4
by sunflowerK » Wed Jan 05, 2011 6:49 pm

4 Replies

4300 Views

Last post by robertreavis
Thu Jan 27, 2011 4:02 pm
Facts of Plasma

Last post by robertreavis « Thu Jan 27, 2011 3:49 pm
Replies: 7
by mrdillan117 » Tue Jan 11, 2011 5:14 pm

7 Replies

7954 Views

Last post by robertreavis
Thu Jan 27, 2011 3:49 pm
Zeolite Activation

Last post by barretttomlinson « Sun Jan 23, 2011 3:54 am
Replies: 3
by cessnapilot » Wed Jan 19, 2011 10:48 pm

3 Replies

6153 Views

Last post by barretttomlinson
Sun Jan 23, 2011 3:54 am
Need help on thermal Depolymerization

Last post by joey6978 « Thu Jan 20, 2011 5:55 pm
Replies: 2
by joey6978 » Thu Jan 20, 2011 4:10 pm

2 Replies

4030 Views

Last post by joey6978
Thu Jan 20, 2011 5:55 pm
photochemistry

Last post by edneu3 « Thu Jan 20, 2011 12:51 pm
Replies: 1
by su new » Mon Jan 17, 2011 10:57 pm

1 Replies

2904 Views

Last post by edneu3
Thu Jan 20, 2011 12:51 pm
Project Question

Last post by edneu3 « Thu Jan 20, 2011 12:42 pm
Replies: 1
by Muzz » Sat Jan 15, 2011 4:29 am

1 Replies

2704 Views

Last post by edneu3
Thu Jan 20, 2011 12:42 pm
Roller Coaster Marbles Question.

Last post by imkevinxd « Mon Jan 17, 2011 1:00 pm
Replies: 2
by imkevinxd » Tue Jan 11, 2011 6:24 pm

2 Replies

6028 Views

Last post by imkevinxd
Mon Jan 17, 2011 1:00 pm
Magnetic Shield

Last post by audreyln « Fri Jan 14, 2011 9:41 am
Replies: 2
by baraa121 » Thu Jan 13, 2011 11:27 pm

2 Replies

3582 Views

Last post by audreyln
Fri Jan 14, 2011 9:41 am
Vitamin C titration

Last post by edneu3 « Thu Jan 13, 2011 12:35 pm
Replies: 1
by qrangotang » Fri Dec 31, 2010 9:16 pm

1 Replies

2764 Views

Last post by edneu3
Thu Jan 13, 2011 12:35 pm
Catapult question

Last post by DCMatucha « Wed Jan 12, 2011 8:31 pm
Replies: 3
by heenashar » Sun Dec 05, 2010 12:13 am

3 Replies

4566 Views

Last post by DCMatucha
Wed Jan 12, 2011 8:31 pm
Violet laser purchasing...

Last post by DCMatucha « Wed Jan 12, 2011 8:26 pm
Replies: 3
by dallenandorjacob » Fri Dec 03, 2010 9:26 am

3 Replies

4239 Views

Last post by DCMatucha
Wed Jan 12, 2011 8:26 pm
insulation

Last post by Craig_Bridge « Tue Jan 11, 2011 4:03 pm
Replies: 5
by Sportsfan44 » Thu Dec 30, 2010 9:48 pm

5 Replies

7414 Views

Last post by Craig_Bridge
Tue Jan 11, 2011 4:03 pm
Orange Juice vs Powerade - Electrolytes

Last post by robertreavis « Tue Jan 11, 2011 3:10 pm
Replies: 2
by desireft » Mon Jan 10, 2011 1:46 pm

2 Replies

4766 Views

Last post by robertreavis
Tue Jan 11, 2011 3:10 pm
Serious help on this Orange jucie vs Gatorade project

Last post by Ray Trent « Mon Jan 10, 2011 9:19 pm
Replies: 1
by ConfusedBlue » Thu Jan 06, 2011 3:49 pm

1 Replies

4558 Views

Last post by Ray Trent
Mon Jan 10, 2011 9:19 pm
Salt water batteries(a.k.a Electrolytic cell)

Last post by moonlight53 « Mon Jan 10, 2011 4:32 pm
Replies: 6
by moonlight53 » Tue Jan 04, 2011 6:01 pm

6 Replies

10549 Views

Last post by moonlight53
Mon Jan 10, 2011 4:32 pm
Comparing phase of two sine wave signals

Last post by amnc11 « Sun Jan 09, 2011 1:44 pm
Replies: 5
by amnc11 » Wed Dec 29, 2010 7:23 pm

5 Replies

7923 Views

Last post by amnc11
Sun Jan 09, 2011 1:44 pm
i need help with iodine in salt

Last post by dcnick96 « Sat Jan 08, 2011 8:42 pm
Replies: 1
by CallofDutyBlackOps » Thu Jan 06, 2011 8:14 am

1 Replies

4239 Views

Last post by dcnick96
Sat Jan 08, 2011 8:42 pm
Muffin Density

Last post by edneu3 « Thu Jan 06, 2011 12:51 pm
Replies: 1
by ckitty1 » Wed Jan 05, 2011 7:29 pm

1 Replies

3564 Views

Last post by edneu3
Thu Jan 06, 2011 12:51 pm
HELP!!!!!

Last post by edneu3 « Thu Jan 06, 2011 12:43 pm
Replies: 1
by PeaceLoveSmile » Fri Dec 31, 2010 8:58 am

1 Replies

3032 Views

Last post by edneu3
Thu Jan 06, 2011 12:43 pm
Does solubility affect photolytic degradation rate?

Last post by barretttomlinson « Tue Jan 04, 2011 4:37 am
Replies: 1
by banyen » Sun Jan 02, 2011 10:26 am

1 Replies

3548 Views

Last post by barretttomlinson
Tue Jan 04, 2011 4:37 am
Project Speed of Light through gelatin using laser, help!

Last post by barretttomlinson « Tue Jan 04, 2011 3:45 am
Replies: 1
by samk0814 » Sun Jan 02, 2011 2:58 pm

1 Replies

5505 Views

Last post by barretttomlinson
Tue Jan 04, 2011 3:45 am
Physics "Question"

Last post by Michael « Sun Jan 02, 2011 3:26 pm
Replies: 1
by Michael » Sun Jan 02, 2011 1:06 pm

1 Replies

3388 Views

Last post by Michael
Sun Jan 02, 2011 3:26 pm
Measuring Vitamin C in Orange Juice

Last post by gmosey « Sun Jan 02, 2011 10:44 am
Replies: 5
by judgecy » Mon Dec 07, 2009 9:52 am

5 Replies

10690 Views

Last post by gmosey
Sun Jan 02, 2011 10:44 am
Vitamin Water has alot of Electrolytes? Is this correct??

Last post by PeaceLoveSmile « Fri Dec 31, 2010 12:45 pm
Replies: 2
by knic.mitch96 » Wed Dec 29, 2010 3:39 pm

2 Replies

4291 Views

Last post by PeaceLoveSmile
Fri Dec 31, 2010 12:45 pm
electrolyte challenge: sports drink Vs. Orange juice

Last post by HFJ96 « Fri Dec 31, 2010 9:21 am
Replies: 2
by HFJ96 » Wed Dec 29, 2010 1:58 pm

2 Replies

3985 Views

Last post by HFJ96
Fri Dec 31, 2010 9:21 am
Photolytic Degradation

Last post by banyen « Wed Dec 29, 2010 6:56 pm
Replies: 5
by banyen » Mon Dec 27, 2010 11:55 am

5 Replies

5261 Views

Last post by banyen
Wed Dec 29, 2010 6:56 pm
Measuring Food Absorption Rate

Last post by HaleyM « Wed Dec 29, 2010 1:44 pm
Replies: 3
by HaleyM » Mon Dec 27, 2010 11:55 am

3 Replies

4883 Views

Last post by HaleyM
Wed Dec 29, 2010 1:44 pm
How would I do this?

Last post by moonvixen930 « Tue Dec 28, 2010 12:19 am
Replies: 4
by moonvixen930 » Sat Dec 25, 2010 11:42 am

4 Replies

6245 Views

Last post by moonvixen930
Tue Dec 28, 2010 12:19 am
Vitamin C content determination by titration question

Last post by barretttomlinson « Thu Dec 23, 2010 3:01 am
Replies: 1
by qrangotang » Tue Dec 21, 2010 10:06 pm

1 Replies

3386 Views

Last post by barretttomlinson
Thu Dec 23, 2010 3:01 am
Chaotic Systems and Pendulums

Last post by Ray Trent « Mon Dec 20, 2010 2:46 pm
Replies: 1
by SpencerO » Mon Dec 20, 2010 11:45 am

1 Replies

3041 Views

Last post by Ray Trent
Mon Dec 20, 2010 2:46 pm
Acid Neutralization

Last post by barretttomlinson « Thu Dec 16, 2010 5:35 am
Replies: 1
by hyunkangs » Thu Dec 16, 2010 12:13 am

1 Replies

3623 Views

Last post by barretttomlinson
Thu Dec 16, 2010 5:35 am
Telegraph System

Last post by dcnick96 « Tue Dec 14, 2010 9:48 pm
Replies: 1
by Zaheer8261993Rizvi » Tue Dec 14, 2010 8:57 pm

1 Replies

3557 Views

Last post by dcnick96
Tue Dec 14, 2010 9:48 pm
bomb calorimeter help!

Last post by MelissaB « Fri Dec 10, 2010 7:57 am
Replies: 1
by ita77 » Thu Dec 09, 2010 6:19 pm

1 Replies

4283 Views

Last post by MelissaB
Fri Dec 10, 2010 7:57 am
Color Mixing with LEDs

Last post by Craig_Bridge « Fri Dec 03, 2010 3:53 pm
Replies: 3
by kes10m » Thu Dec 02, 2010 9:57 am

3 Replies

3585 Views

Last post by Craig_Bridge
Fri Dec 03, 2010 3:53 pm
Human Battery Power

Last post by edneu3 « Thu Dec 02, 2010 12:50 pm
Replies: 1
by yx3670 » Thu Dec 02, 2010 3:35 am

1 Replies

4064 Views

Last post by edneu3
Thu Dec 02, 2010 12:50 pm
help with abstract!

Last post by edneu3 « Thu Dec 02, 2010 12:26 pm
Replies: 1
by oppezie » Wed Dec 01, 2010 5:36 pm

1 Replies

3016 Views

Last post by edneu3
Thu Dec 02, 2010 12:26 pm
Chromatography Advanced Version 1

Last post by Dumbledore « Thu Dec 02, 2010 7:01 am
Replies: 3
by Dumbledore » Thu Nov 25, 2010 10:23 am

3 Replies

4958 Views

Last post by Dumbledore
Thu Dec 02, 2010 7:01 am
Is the soup ready?

Last post by barretttomlinson « Thu Dec 02, 2010 4:55 am
Replies: 3
by keke10125 » Mon Nov 29, 2010 4:25 pm

3 Replies

3789 Views

Last post by barretttomlinson
Thu Dec 02, 2010 4:55 am
How to make a Generator?

Last post by barretttomlinson « Thu Dec 02, 2010 4:19 am
Replies: 1
by jinv153 » Thu Dec 02, 2010 3:19 am

1 Replies

3202 Views

Last post by barretttomlinson
Thu Dec 02, 2010 4:19 am
SCience Fair Research paper

Last post by barretttomlinson « Tue Nov 30, 2010 3:57 am
Replies: 1
by fzlxbibi » Mon Nov 29, 2010 8:17 pm

1 Replies

4289 Views

Last post by barretttomlinson
Tue Nov 30, 2010 3:57 am
continuation of last year's project!!!!!!!!!!!!!:O:O:O

Last post by Yari « Mon Nov 29, 2010 3:52 pm
Replies: 2
by ahelpfulmom » Sat Nov 27, 2010 6:26 pm

2 Replies

3344 Views

Last post by Yari
Mon Nov 29, 2010 3:52 pm
SELF-PROPELLED CART!

Last post by Craig_Bridge « Mon Nov 29, 2010 2:29 pm
Replies: 1
by clj2012 » Fri Nov 26, 2010 2:34 pm

1 Replies

3358 Views

Last post by Craig_Bridge
Mon Nov 29, 2010 2:29 pm
Science Project!!

Last post by ckitty1 « Sun Nov 28, 2010 6:46 pm
Replies: 2
by ckitty1 » Sun Nov 28, 2010 3:16 pm

2 Replies

3435 Views

Last post by ckitty1
Sun Nov 28, 2010 6:46 pm

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