Ask an Expert: Grades 9-12: Physical Science

Grades 9-12: Physical Science

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measuring knee stress with hooke's law

Last post by vancan007 « Thu Jan 23, 2014 9:44 pm
Replies: 2
by vancan007 » Tue Jan 14, 2014 7:34 pm

2 Replies

2793 Views

Last post by vancan007
Thu Jan 23, 2014 9:44 pm
Mono vs. Stereo phone jack?

Last post by dantheman321456987 « Wed Jan 22, 2014 11:58 am
Replies: 2
by dantheman321456987 » Wed Jan 22, 2014 8:50 am

2 Replies

2634 Views

Last post by dantheman321456987
Wed Jan 22, 2014 11:58 am
Hovercrafts

Last post by rmarz « Tue Jan 21, 2014 9:02 am
Replies: 14
by ericw740 » Thu Nov 08, 2007 6:29 am

14 Replies

15443 Views

Last post by rmarz
Tue Jan 21, 2014 9:02 am
The Cool Blue Light of Luminol

Last post by Tavia Ordenstein « Sun Jan 19, 2014 11:52 pm
Replies: 4
by gusgus1229 » Fri Sep 27, 2013 9:46 am

4 Replies

6857 Views

Last post by Tavia Ordenstein
Sun Jan 19, 2014 11:52 pm
solar panels

Last post by DouglasStokes « Sun Jan 19, 2014 10:48 pm
Replies: 2
by tretman » Wed Jan 02, 2008 1:04 pm

2 Replies

4082 Views

Last post by DouglasStokes
Sun Jan 19, 2014 10:48 pm
Please help with blue dye question!

Last post by agustya « Sun Jan 19, 2014 4:28 pm
Replies: 1
by Chemshavon » Sat Jan 18, 2014 9:53 pm

1 Replies

10290 Views

Last post by agustya
Sun Jan 19, 2014 4:28 pm
Water quality and corrosion

Last post by soupea « Sun Jan 19, 2014 7:32 am
Replies: 9
by soupea » Wed Jan 15, 2014 1:21 pm

9 Replies

4946 Views

Last post by soupea
Sun Jan 19, 2014 7:32 am
Type of Vitamin C tablet Issue: Do Oranges Lose or Gain...

Last post by SandbaggerOne « Sat Jan 18, 2014 9:13 pm
Replies: 1
by latinrules57 » Sun Dec 29, 2013 2:23 pm

1 Replies

2509 Views

Last post by SandbaggerOne
Sat Jan 18, 2014 9:13 pm
Determining catalysts for electrolysis/electrodialysis

Last post by matt1500 « Fri Jan 17, 2014 7:32 pm
Replies: 2
by matt1500 » Mon Jan 06, 2014 6:27 pm

2 Replies

4299 Views

Last post by matt1500
Fri Jan 17, 2014 7:32 pm
What happens when Vitamin C is Oxidized?

Last post by sarahlaugtug « Fri Jan 17, 2014 5:25 pm
Replies: 1
by Herospart » Sun Jan 05, 2014 6:07 pm

1 Replies

12380 Views

Last post by sarahlaugtug
Fri Jan 17, 2014 5:25 pm
Physics

Last post by Terik Daly « Fri Jan 17, 2014 9:29 am
Replies: 1
by hsattler14 » Thu Jan 16, 2014 7:36 am

1 Replies

2427 Views

Last post by Terik Daly
Fri Jan 17, 2014 9:29 am
Water to Fuel to Water: The Fuel Cycle of the Future

Last post by Terik Daly « Fri Jan 17, 2014 9:09 am
Replies: 1
by mandam96 » Wed Jan 15, 2014 5:40 pm

1 Replies

2756 Views

Last post by Terik Daly
Fri Jan 17, 2014 9:09 am
How to keep thermometer reading from fluctuating

Last post by Terik Daly « Wed Jan 15, 2014 6:47 am
Replies: 3
by stuffandthings » Fri Jan 03, 2014 12:48 am

3 Replies

3409 Views

Last post by Terik Daly
Wed Jan 15, 2014 6:47 am
Leyden jar

Last post by dcnick96 « Wed Jan 15, 2014 12:28 am
Replies: 10
by 4Jesus » Mon Dec 23, 2013 9:10 am

10 Replies

5167 Views

Last post by dcnick96
Wed Jan 15, 2014 12:28 am
measuring knee stress with hooke's law

Last post by dcnick96 « Wed Jan 15, 2014 12:24 am
Replies: 1
by vancan007 » Tue Jan 14, 2014 6:42 pm

1 Replies

2190 Views

Last post by dcnick96
Wed Jan 15, 2014 12:24 am
Help!

Last post by rmarz « Sun Jan 12, 2014 9:36 pm
Replies: 1
by Doodle » Sun Jan 12, 2014 6:31 pm

1 Replies

2154 Views

Last post by rmarz
Sun Jan 12, 2014 9:36 pm
Astronomy project..need help!!

Last post by Yojan « Sun Jan 12, 2014 4:19 am
Replies: 2
by Yojan » Wed Dec 25, 2013 6:56 am

2 Replies

2660 Views

Last post by Yojan
Sun Jan 12, 2014 4:19 am
Biodiesel

Last post by grai « Sat Jan 11, 2014 5:24 pm
Replies: 2
by Cmartin » Wed Jan 08, 2014 10:27 pm

2 Replies

2812 Views

Last post by grai
Sat Jan 11, 2014 5:24 pm
sunscreen effectiveness PLEASE GET BACK TO ME SOON!

Last post by Terik Daly « Fri Jan 10, 2014 9:34 am
Replies: 1
by moa75 » Mon Jan 06, 2014 6:26 pm

1 Replies

2296 Views

Last post by Terik Daly
Fri Jan 10, 2014 9:34 am
Which material best stops the decay particles of Pb-210?

Last post by Terik Daly « Fri Jan 10, 2014 9:28 am
Replies: 1
by ukkikki4 » Sun Jan 05, 2014 10:55 pm

1 Replies

2244 Views

Last post by Terik Daly
Fri Jan 10, 2014 9:28 am
biodiesel efficiency

Last post by aria12 « Wed Jan 08, 2014 1:14 pm
Replies: 4
by Cmartin » Tue Jan 07, 2014 9:20 pm

4 Replies

3341 Views

Last post by aria12
Wed Jan 08, 2014 1:14 pm
Airplane Drag?

Last post by rmarz « Wed Jan 08, 2014 9:26 am
Replies: 4
by samiha » Wed Jan 08, 2014 12:38 am

4 Replies

4436 Views

Last post by rmarz
Wed Jan 08, 2014 9:26 am
Goal/Hypothesis?

Last post by matt1500 « Mon Jan 06, 2014 8:19 pm
Replies: 3
by wtwwg » Sun Dec 08, 2013 5:52 pm

3 Replies

2768 Views

Last post by matt1500
Mon Jan 06, 2014 8:19 pm
Please Reply Fast: Absorption of Radiant Energy Energy Title

Last post by jordcic12 « Mon Jan 06, 2014 2:18 pm
Replies: 2
by jordcic12 » Sun Jan 05, 2014 5:02 pm

2 Replies

2893 Views

Last post by jordcic12
Mon Jan 06, 2014 2:18 pm
Oscillating Reactions

Last post by Terik Daly « Mon Jan 06, 2014 8:06 am
Replies: 1
by Rajivnair » Thu Jan 02, 2014 6:30 am

1 Replies

4135 Views

Last post by Terik Daly
Mon Jan 06, 2014 8:06 am
Nano Filters

Last post by Terik Daly « Mon Jan 06, 2014 7:57 am
Replies: 1
by Ligushka » Mon Dec 30, 2013 12:42 pm

1 Replies

2399 Views

Last post by Terik Daly
Mon Jan 06, 2014 7:57 am
borax crystals never grew

Last post by Terik Daly « Mon Jan 06, 2014 7:42 am
Replies: 1
by leahp » Mon Dec 30, 2013 11:36 am

1 Replies

7802 Views

Last post by Terik Daly
Mon Jan 06, 2014 7:42 am
CHEMISTRY

Last post by Terik Daly « Mon Jan 06, 2014 7:26 am
Replies: 1
by kinsh_pcm » Sun Dec 29, 2013 10:36 pm

1 Replies

2206 Views

Last post by Terik Daly
Mon Jan 06, 2014 7:26 am
Problem with instructions

Last post by rmarz « Sun Jan 05, 2014 9:37 pm
Replies: 1
by samiha » Sun Jan 05, 2014 8:06 pm

1 Replies

2323 Views

Last post by rmarz
Sun Jan 05, 2014 9:37 pm
Testing Biodegradability/Comosptability of Plastics

Last post by hello1910 « Sun Jan 05, 2014 10:37 am
Replies: 6
by hello1910 » Fri Oct 04, 2013 8:18 pm

6 Replies

5533 Views

Last post by hello1910
Sun Jan 05, 2014 10:37 am
about npn transistor please reply fast

Last post by kgudger « Sun Jan 05, 2014 3:12 am
Replies: 4
by jashan » Thu Jan 02, 2014 4:13 am

4 Replies

4065 Views

Last post by kgudger
Sun Jan 05, 2014 3:12 am
Confusing Instructions

Last post by JChang « Sat Jan 04, 2014 10:21 pm
Replies: 1
by floringr » Wed Jan 01, 2014 1:24 pm

1 Replies

2799 Views

Last post by JChang
Sat Jan 04, 2014 10:21 pm
Electrolyte Challenge

Last post by rmarz « Sat Jan 04, 2014 12:17 pm
Replies: 1
by MIssyTWhite370 » Sat Jan 04, 2014 9:49 am

1 Replies

2398 Views

Last post by rmarz
Sat Jan 04, 2014 12:17 pm
Invertase Alternative

Last post by _Batman_Nimrod_ « Fri Jan 03, 2014 8:27 am
Replies: 1
by _Batman_Nimrod_ » Thu Jan 02, 2014 9:58 pm

1 Replies

2493 Views

Last post by _Batman_Nimrod_
Fri Jan 03, 2014 8:27 am
Where can I buy a small pressure vessel under $200?

Last post by stuffandthings « Fri Jan 03, 2014 12:43 am
Replies: 12
by stuffandthings » Sat Dec 07, 2013 10:07 am

12 Replies

7707 Views

Last post by stuffandthings
Fri Jan 03, 2014 12:43 am
Help with a question for my science project.

Last post by ivanskavar « Thu Jan 02, 2014 9:12 pm
Replies: 2
by ivanskavar » Thu Jan 02, 2014 12:07 am

2 Replies

2415 Views

Last post by ivanskavar
Thu Jan 02, 2014 9:12 pm
Hollow Prisms

Last post by TBTHarvest « Tue Dec 31, 2013 9:42 pm
Replies: 2
by TBTHarvest » Tue Dec 31, 2013 12:59 am

2 Replies

4370 Views

Last post by TBTHarvest
Tue Dec 31, 2013 9:42 pm
Attaching Guitar String to Knee Model in "Deep Knee Bends"

Last post by bhuvanar « Fri Dec 27, 2013 5:51 pm
Replies: 7
by INEEDHELPPLEASE1 » Sun Nov 03, 2013 6:18 pm

7 Replies

4408 Views

Last post by bhuvanar
Fri Dec 27, 2013 5:51 pm
What category does my project fit into?

Last post by Nondefault « Tue Dec 24, 2013 11:54 pm
Replies: 2
by Nondefault » Tue Dec 24, 2013 11:16 pm

2 Replies

2276 Views

Last post by Nondefault
Tue Dec 24, 2013 11:54 pm
Waste Not, Want Not

Last post by Terik Daly « Fri Dec 20, 2013 11:11 am
Replies: 1
by BubblyLaugh » Tue Dec 17, 2013 3:22 pm

1 Replies

2741 Views

Last post by Terik Daly
Fri Dec 20, 2013 11:11 am
Baseball aerodynamics

Last post by Terik Daly « Fri Dec 20, 2013 10:30 am
Replies: 1
by Ian LT-IN » Mon Dec 16, 2013 5:13 pm

1 Replies

4044 Views

Last post by Terik Daly
Fri Dec 20, 2013 10:30 am
Sports science: Crossed and Uncrossed hand/eye dominance

Last post by Terik Daly « Fri Dec 20, 2013 10:18 am
Replies: 1
by Jkarad » Mon Dec 16, 2013 11:19 am

1 Replies

3131 Views

Last post by Terik Daly
Fri Dec 20, 2013 10:18 am
Conclusion for project

Last post by Terik Daly « Fri Dec 20, 2013 9:50 am
Replies: 1
by soccerperson10 » Sun Dec 15, 2013 1:22 pm

1 Replies

3975 Views

Last post by Terik Daly
Fri Dec 20, 2013 9:50 am
Paper chromatography advanced version 1

Last post by Terik Daly « Fri Dec 20, 2013 9:46 am
Replies: 1
by bahia89 » Sat Dec 14, 2013 10:55 pm

1 Replies

18177 Views

Last post by Terik Daly
Fri Dec 20, 2013 9:46 am
Vitamin C content in Vegetables

Last post by Terik Daly « Fri Dec 20, 2013 9:11 am
Replies: 1
by Lovelykixx » Sat Dec 14, 2013 12:41 pm

1 Replies

2707 Views

Last post by Terik Daly
Fri Dec 20, 2013 9:11 am
How to Make a Guitar Sing Need Answers now!!!!!

Last post by alexis14 « Tue Dec 17, 2013 11:09 pm
Replies: 2
by alexis14 » Mon Dec 16, 2013 9:13 pm

2 Replies

2737 Views

Last post by alexis14
Tue Dec 17, 2013 11:09 pm
I need help with used motor oil. Very urgent!

Last post by Terik Daly « Tue Dec 17, 2013 9:03 pm
Replies: 3
by TripleSElf501 » Wed Dec 11, 2013 11:43 am

3 Replies

2603 Views

Last post by Terik Daly
Tue Dec 17, 2013 9:03 pm
Please Help! Buffer & Voltage

Last post by Whales « Tue Dec 17, 2013 12:39 pm
Replies: 3
by Whales » Thu Dec 12, 2013 12:47 pm

3 Replies

2698 Views

Last post by Whales
Tue Dec 17, 2013 12:39 pm
Film Canister explosion

Last post by rmarz « Tue Dec 17, 2013 12:37 am
Replies: 1
by everett99 » Mon Dec 16, 2013 7:38 pm

1 Replies

2931 Views

Last post by rmarz
Tue Dec 17, 2013 12:37 am
Operating a Stirling Engine inside a Pressure Vessel

Last post by stuffandthings « Sun Dec 15, 2013 10:44 am

by stuffandthings » Sun Dec 15, 2013 10:44 am

0 Replies

3463 Views

Last post by stuffandthings
Sun Dec 15, 2013 10:44 am

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