Ask an Expert: Grades 9-12: Physical Science

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Meet Your Intel ISEF Experts!

Last post by matt1500 « Mon Jan 06, 2014 8:28 pm
Replies: 8
by scibudadmin » Wed Apr 18, 2007 3:15 pm

8 Replies

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Mon Jan 06, 2014 8:28 pm
Rules for Interview Questions

Last post by amyc « Wed Jan 25, 2012 4:50 pm

by amyc » Wed Jan 25, 2012 4:50 pm

0 Replies

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Wed Jan 25, 2012 4:50 pm
Artificial Pancreas Pump

Last post by bfinio « Tue Jan 18, 2022 10:09 am
Replies: 3
Attachment(s) by jayashah » Fri Jan 07, 2022 1:43 pm

3 Replies

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Tue Jan 18, 2022 10:09 am
Question about Minds of Their Own: A Chemical Reaction that Changes, then Changes Back! activity

Last post by ctactawong « Fri Jan 14, 2022 8:19 pm
Replies: 1
by afatima10 » Wed Jan 05, 2022 7:13 pm

1 Replies

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Last post by ctactawong View the latest post
Fri Jan 14, 2022 8:19 pm
How to predict molecule properties?

Last post by TheDoctor2035 « Tue Jan 11, 2022 11:15 pm
Replies: 2
by TheDoctor2035 » Mon Jan 10, 2022 10:44 pm

2 Replies

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Tue Jan 11, 2022 11:15 pm
Question about Build a Motion-Activated Guard Robot (BlueBot Project #1) activity

Last post by bfinio « Tue Jan 04, 2022 6:29 pm
Replies: 3
by 94981157698925020450 » Tue Jan 04, 2022 1:54 am

3 Replies

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Tue Jan 04, 2022 6:29 pm
Question about Paper Chromatography: Is Black Ink Really Black? activity

Last post by audreyln « Tue Jan 11, 2022 10:50 am
Replies: 3
by tdrost » Mon Jan 03, 2022 1:12 pm

3 Replies

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Last post by audreyln View the latest post
Tue Jan 11, 2022 10:50 am
Question about Build a Motion-Activated Guard Robot (BlueBot Project activity

Last post by bfinio « Wed Jan 05, 2022 7:32 pm
Replies: 1
by Jgz2112 » Sat Jan 01, 2022 6:57 pm

1 Replies

105 Views

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Wed Jan 05, 2022 7:32 pm
Rutherford's Gold Foil experiment DOUBT

Last post by ctactawong « Fri Dec 31, 2021 12:10 pm
Replies: 1
by 08251 » Mon Dec 27, 2021 11:21 pm

1 Replies

99 Views

Last post by ctactawong View the latest post
Fri Dec 31, 2021 12:10 pm
Avoid The Shock Of Shocks (Electronics)

Last post by bfinio « Wed Dec 22, 2021 1:50 pm
Replies: 3
by Jack_Pache » Tue Dec 14, 2021 3:42 pm

3 Replies

166 Views

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Wed Dec 22, 2021 1:50 pm
Adorption chemistry with kool-aid question

Last post by audreyln « Tue Dec 21, 2021 11:53 pm
Replies: 1
by Nicolas_2 » Sun Dec 19, 2021 11:44 am

1 Replies

109 Views

Last post by audreyln View the latest post
Tue Dec 21, 2021 11:53 pm
Gravity on a spaceship from acceleration

Last post by bfinio « Mon Dec 13, 2021 11:46 am
Replies: 1
by Timemachine101 » Sat Dec 11, 2021 1:39 pm

1 Replies

141 Views

Last post by bfinio View the latest post
Mon Dec 13, 2021 11:46 am
Mousetrap car help

Last post by corall « Tue Dec 07, 2021 11:01 am

by corall » Tue Dec 07, 2021 11:01 am

0 Replies

155 Views

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Tue Dec 07, 2021 11:01 am
Can we put cleaning alcohol inside softgels?

Last post by audreyln « Tue Nov 23, 2021 2:30 pm
Replies: 1
by Poom2021 » Mon Nov 22, 2021 1:27 am

1 Replies

570 Views

Last post by audreyln View the latest post
Tue Nov 23, 2021 2:30 pm
Suggested Amperage for electromagnet

Last post by MattSalek « Thu Nov 18, 2021 12:10 pm

by MattSalek » Thu Nov 18, 2021 12:10 pm

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Thu Nov 18, 2021 12:10 pm
HELP! Absorption of Radiant Energy by Different Colors

Last post by bfinio « Wed Nov 10, 2021 2:19 pm
Replies: 1
by IvyYang » Thu Nov 04, 2021 9:40 pm

1 Replies

848 Views

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Wed Nov 10, 2021 2:19 pm
How is cotton candy made?

Last post by MadelineB « Thu Nov 04, 2021 7:22 pm
Replies: 1
by Haley-00o » Thu Nov 04, 2021 10:15 am

1 Replies

685 Views

Last post by MadelineB View the latest post
Thu Nov 04, 2021 7:22 pm
Tranist of a Planet

Last post by carlstensfer102 « Thu Nov 04, 2021 3:54 am
Replies: 4
by Vera35 » Thu Oct 14, 2021 1:49 am

4 Replies

1387 Views

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Thu Nov 04, 2021 3:54 am
Finding a Bacteria for my Microbial Fuel Cell

Last post by brindhaaa « Mon Nov 01, 2021 5:27 pm
Replies: 67
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Attachment(s) by brindhaaa » Mon Nov 02, 2020 11:14 pm
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Mon Nov 01, 2021 5:27 pm
Please Help me find the answers-Topic-Lightning

Last post by rmarz « Sat Oct 30, 2021 6:20 pm
Replies: 1
by jackj_32 » Thu Oct 21, 2021 5:05 pm

1 Replies

978 Views

Last post by rmarz View the latest post
Sat Oct 30, 2021 6:20 pm
How to track genomic revolution of COVID19 using NCBI

Last post by AmyCowen « Tue Nov 02, 2021 9:17 am
Replies: 2
by Josiahforerver » Fri Oct 22, 2021 1:17 am

2 Replies

1857 Views

Last post by AmyCowen View the latest post
Tue Nov 02, 2021 9:17 am
How do we estimate the size of a star in arcminutes?

Last post by AmyCowen « Tue Oct 19, 2021 4:58 pm
Replies: 1
by mno11407 » Sun Oct 17, 2021 11:08 am

1 Replies

1102 Views

Last post by AmyCowen View the latest post
Tue Oct 19, 2021 4:58 pm
Doppler effect

Last post by ctactawong « Fri Oct 15, 2021 6:23 am
Replies: 2
by phys_stud » Thu Sep 30, 2021 9:37 pm

2 Replies

1393 Views

Last post by ctactawong View the latest post
Fri Oct 15, 2021 6:23 am
Ion Engines - Propellant

Last post by theborg « Sat Sep 25, 2021 7:10 am
Replies: 1
by joe_dunca26 » Fri Sep 24, 2021 8:36 am

1 Replies

1409 Views

Last post by theborg View the latest post
Sat Sep 25, 2021 7:10 am
How do I wire it correctly? Please help

Last post by MadelineB « Thu Sep 23, 2021 2:43 pm
Replies: 1
Attachment(s) by sacred » Tue Jul 06, 2021 8:54 pm

1 Replies

3076 Views

Last post by MadelineB View the latest post
Thu Sep 23, 2021 2:43 pm
What's the current flow and heat loss?

Last post by MadelineB « Thu Sep 23, 2021 2:42 pm
Replies: 1
by sacred » Wed Jul 07, 2021 2:03 am

1 Replies

3034 Views

Last post by MadelineB View the latest post
Thu Sep 23, 2021 2:42 pm
help me pls

Last post by MadelineB « Thu Sep 23, 2021 2:39 pm
Replies: 1
by _saint » Tue Sep 21, 2021 7:34 am

1 Replies

2796 Views

Last post by MadelineB View the latest post
Thu Sep 23, 2021 2:39 pm
Apple Oxidation

Last post by SciB « Thu Sep 23, 2021 12:41 pm
Replies: 1
by ash107 » Wed Sep 01, 2021 11:52 am

1 Replies

1652 Views

Last post by SciB View the latest post
Thu Sep 23, 2021 12:41 pm
Help needed with my project (measuring time)

Last post by audreyln « Tue Sep 21, 2021 11:38 am
Replies: 1
by A0987 » Sat Sep 18, 2021 5:35 pm

1 Replies

1472 Views

Last post by audreyln View the latest post
Tue Sep 21, 2021 11:38 am
Help with the Simple Harmonic Motion in a Spring-Mass System Experiment

Last post by theborg « Tue Sep 14, 2021 7:41 am
Replies: 1
by pastelayf » Tue Sep 14, 2021 5:33 am

1 Replies

1553 Views

Last post by theborg View the latest post
Tue Sep 14, 2021 7:41 am
Soap Making

Last post by Annelisew « Thu Sep 09, 2021 9:46 pm
Replies: 2
by Annelisew » Sun Aug 29, 2021 3:37 am

2 Replies

1777 Views

Last post by Annelisew View the latest post
Thu Sep 09, 2021 9:46 pm
Crime Scene Chemistry

Last post by audreyln « Tue Sep 07, 2021 11:12 am
Replies: 1
by claire_bear30 » Mon Sep 06, 2021 7:53 pm

1 Replies

1630 Views

Last post by audreyln View the latest post
Tue Sep 07, 2021 11:12 am
Need some help with this electrolyte experiment

Last post by rmarz « Sun Aug 29, 2021 12:13 am
Replies: 1
by Hannibal84 » Mon Jul 19, 2021 2:26 am

1 Replies

5357 Views

Last post by rmarz View the latest post
Sun Aug 29, 2021 12:13 am
Gold bullion

Last post by rmarz « Sun Aug 29, 2021 12:01 am
Replies: 1
by oldbuck » Sat Jul 24, 2021 6:12 am

1 Replies

5347 Views

Last post by rmarz View the latest post
Sun Aug 29, 2021 12:01 am
Pressure Vessel question.

Last post by rmarz « Sat Aug 28, 2021 11:57 pm
Replies: 1
by 064c9267ad2b4837a094d0a975b48766 » Mon Jul 26, 2021 2:48 pm

1 Replies

5885 Views

Last post by rmarz View the latest post
Sat Aug 28, 2021 11:57 pm
Water-based resin Dough-like PVC bait.

Last post by ctactawong « Fri Aug 27, 2021 12:16 pm
Replies: 1
by GloFishing » Sun Aug 22, 2021 11:41 am

1 Replies

2554 Views

Last post by ctactawong View the latest post
Fri Aug 27, 2021 12:16 pm
Question on time dilation. Twin Paradox

Last post by ctactawong « Fri Aug 27, 2021 11:18 am
Replies: 1
by pedronascimento33 » Thu Aug 26, 2021 3:35 am

1 Replies

1761 Views

Last post by ctactawong View the latest post
Fri Aug 27, 2021 11:18 am
downwind faster than the wind car

Last post by AmyCowen « Mon Jul 26, 2021 8:44 am
Replies: 1
by Molemo » Tue Jul 20, 2021 9:27 am

1 Replies

3004 Views

Last post by AmyCowen View the latest post
Mon Jul 26, 2021 8:44 am
Materials Science - point me in the right direction?

Last post by bfinio « Wed Jul 21, 2021 8:12 am
Replies: 2
by lmr28 » Sat Jul 17, 2021 5:13 pm

2 Replies

2895 Views

Last post by bfinio View the latest post
Wed Jul 21, 2021 8:12 am
Potentiometers and Mosfet

Last post by bfinio « Mon Jul 19, 2021 9:04 am
Replies: 1
Attachment(s) by PeterLiang » Sat Jul 17, 2021 8:16 pm

1 Replies

5636 Views

Last post by bfinio View the latest post
Mon Jul 19, 2021 9:04 am
Diabetes Project Help

Last post by bfinio « Wed Jul 07, 2021 9:49 am
Replies: 7
by happydog » Sat Jan 02, 2021 5:06 pm

7 Replies

4286 Views

Last post by bfinio View the latest post
Wed Jul 07, 2021 9:49 am
Modifying Activated Carbon for Adsorption of CO2 And Water Pollutants

Last post by MadelineB « Tue Jul 06, 2021 1:19 pm
Replies: 2
by wesleychen » Sat Jun 26, 2021 12:17 am

2 Replies

5459 Views

Last post by MadelineB View the latest post
Tue Jul 06, 2021 1:19 pm
Physics

Last post by audreyln « Tue Jul 06, 2021 9:31 am
Replies: 1
by 50151387951d4e04861d4608ce2eb4bd » Wed Jun 30, 2021 2:26 am

1 Replies

2875 Views

Last post by audreyln View the latest post
Tue Jul 06, 2021 9:31 am
Vitamin c in OJ

Last post by Karamswanson « Mon Jun 28, 2021 4:20 am

by Karamswanson » Mon Jun 28, 2021 4:20 am

0 Replies

3237 Views

Last post by Karamswanson View the latest post
Mon Jun 28, 2021 4:20 am
Chemistry

Last post by AmyCowen « Mon Jun 14, 2021 11:47 am
Replies: 1
by Jayi_art » Mon Jun 14, 2021 9:44 am

1 Replies

3047 Views

Last post by AmyCowen View the latest post
Mon Jun 14, 2021 11:47 am
May I please have help for my SRP?

Last post by gracegrape13 « Wed Jun 09, 2021 9:28 pm
Replies: 2
by gracegrape13 » Sun Apr 11, 2021 5:18 am

2 Replies

5644 Views

Last post by gracegrape13 View the latest post
Wed Jun 09, 2021 9:28 pm
Baking soda and vinegar rate of reaction question pls help!!!

Last post by spideysense « Thu Jun 03, 2021 6:52 am

by spideysense » Thu Jun 03, 2021 6:52 am

0 Replies

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Last post by spideysense View the latest post
Thu Jun 03, 2021 6:52 am
Explanation for Rusting of Iron Nail Project!

Last post by KarMark12 « Thu Jun 03, 2021 4:07 am

by KarMark12 » Thu Jun 03, 2021 4:07 am

0 Replies

3226 Views

Last post by KarMark12 View the latest post
Thu Jun 03, 2021 4:07 am
Please help on a titration lab!

Last post by audreyln « Tue Jun 01, 2021 10:37 am
Replies: 1
by Lbul1234 » Mon May 31, 2021 2:21 pm

1 Replies

2961 Views

Last post by audreyln View the latest post
Tue Jun 01, 2021 10:37 am
Radios and Calculators

Last post by bfinio « Mon May 17, 2021 8:22 am
Replies: 1
by Tam_light » Fri May 14, 2021 3:37 pm

1 Replies

3074 Views

Last post by bfinio View the latest post
Mon May 17, 2021 8:22 am

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