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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Rules for Interview Questions

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

by amyc » Wed Jan 25, 2012 4:50 pm

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About the time and gravity

Last post by heni12 « Tue May 17, 2022 5:28 am
Replies: 3
by defehi12 » Wed Apr 13, 2022 9:39 am

3 Replies

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Tue May 17, 2022 5:28 am
Kepler telescope to identify exoplanets

Last post by Sebas_Or « Mon May 16, 2022 9:47 am

by Sebas_Or » Mon May 16, 2022 9:47 am

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Step Site versus Terrace Site on a metal catalyst

Last post by HappyS5 « Wed May 11, 2022 9:58 am

by HappyS5 » Wed May 11, 2022 9:58 am

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Wed May 11, 2022 9:58 am
Light tracking bluebot project

Last post by AmyCowen « Fri Apr 29, 2022 9:33 am
Replies: 5
by Sana_aln » Wed Apr 27, 2022 3:06 am

5 Replies

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Last post by AmyCowen View the latest post
Fri Apr 29, 2022 9:33 am
the big bang

Last post by ctactawong « Sat Apr 16, 2022 12:30 pm
Replies: 1
by tinytreezy » Sat Apr 09, 2022 12:03 pm

1 Replies

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Sat Apr 16, 2022 12:30 pm
Astronomy "Using Kepler Space Telescope Data to Identify an Exoplanet"

Last post by AmyCowen « Tue Apr 12, 2022 8:36 am
Replies: 1
by jmarti66670607 » Fri Apr 08, 2022 9:19 pm

1 Replies

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Last post by AmyCowen View the latest post
Tue Apr 12, 2022 8:36 am
Iodine Clock Reaction | HCl Substitute??

Last post by AmyCowen « Tue Mar 29, 2022 9:30 am
Replies: 1
by mxavier28 » Fri Mar 11, 2022 8:08 pm

1 Replies

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Last post by AmyCowen View the latest post
Tue Mar 29, 2022 9:30 am
Question about Build a Pizza Box Solar Oven activity

Last post by audreyln « Tue Mar 15, 2022 1:41 pm
Replies: 1
by cmw8349hc » Thu Mar 10, 2022 12:25 pm

1 Replies

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Tue Mar 15, 2022 1:41 pm
Soil Moisture Sensor Parts

Last post by bfinio « Mon Mar 14, 2022 7:05 am
Replies: 1
by Roheka15 » Fri Mar 11, 2022 4:58 pm

1 Replies

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Mon Mar 14, 2022 7:05 am
Need help on properties of ionic and covalent compounds

Last post by AmyCowen « Thu Mar 10, 2022 5:59 pm
Replies: 1
by Justplayedcards » Thu Mar 10, 2022 6:44 am

1 Replies

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Thu Mar 10, 2022 5:59 pm
About moles of alanine, iron and nitrobenzene

Last post by MadelineB « Thu Mar 03, 2022 2:18 pm
Replies: 1
by azalferez » Thu Mar 03, 2022 1:40 am

1 Replies

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Thu Mar 03, 2022 2:18 pm
Recycling of Lithium Ion Batteries by Flash Joule Heating

Last post by wesleychen « Wed Mar 02, 2022 3:24 pm
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by wesleychen » Tue Mar 01, 2022 8:08 pm

2 Replies

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Wed Mar 02, 2022 3:24 pm
Separating microplastics from biochar

Last post by cmpayne « Tue Mar 01, 2022 7:44 am
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by ai12345 » Wed Jan 19, 2022 1:23 am

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Solar battery issue

Last post by ctactawong « Sun Feb 20, 2022 3:04 pm
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by Jenefer1122 » Fri Feb 18, 2022 10:09 pm

1 Replies

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Questions about rotating prism in Measuring Sugar Content of a Liquid with a Laser Pointer

Last post by bfinio « Tue Feb 15, 2022 8:58 am
Replies: 2
by ChemTeacher44 » Wed Feb 09, 2022 3:05 pm

2 Replies

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Tue Feb 15, 2022 8:58 am
Astrophotography

Last post by bfinio « Wed Feb 09, 2022 11:21 am
Replies: 1
by Goelv » Fri Feb 04, 2022 2:28 am

1 Replies

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Wed Feb 09, 2022 11:21 am
Do elements in Group 4a (14) Have a Charge of 4+ or 4-

Last post by Novaguy « Thu Feb 03, 2022 6:27 pm

by Novaguy » Thu Feb 03, 2022 6:27 pm

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Thu Feb 03, 2022 6:27 pm
Calorimetry Experiment Gr-10

Last post by padawan21 « Wed Feb 02, 2022 10:24 pm

by padawan21 » Wed Feb 02, 2022 10:24 pm

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Wed Feb 02, 2022 10:24 pm
Results For "Particles in the Mist: See Radioactive Particles Decay with Your Own Cloud Chamber!"

Last post by MadelineB « Sun Jan 30, 2022 5:59 pm
Replies: 1
by TheMann » Sat Jan 29, 2022 9:14 pm

1 Replies

259 Views

Last post by MadelineB View the latest post
Sun Jan 30, 2022 5:59 pm
Ocean Acidification Question

Last post by Sci_parent « Sat Jan 29, 2022 8:25 pm

by Sci_parent » Sat Jan 29, 2022 8:25 pm

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Sat Jan 29, 2022 8:25 pm
Question about building a paper speaker

Last post by AmyCowen « Thu Jan 27, 2022 10:16 am
Replies: 1
by droptop223 » Tue Jan 25, 2022 4:07 pm

1 Replies

332 Views

Last post by AmyCowen View the latest post
Thu Jan 27, 2022 10:16 am
What reflects IR light but not UVA/UVB?

Last post by ctactawong « Thu Jan 27, 2022 6:30 am
Replies: 1
by superherobyday » Wed Jan 26, 2022 10:16 am

1 Replies

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Thu Jan 27, 2022 6:30 am
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

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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

432 Views

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

Last post by bfinio « Wed Jan 19, 2022 7:31 pm
Replies: 3
Attachment(s) by Jgz2112 » Sat Jan 01, 2022 6:57 pm

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Wed Jan 19, 2022 7:31 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

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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

418 Views

Last post by bfinio View the latest post
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

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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

333 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

336 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

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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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Last post by MattSalek View the latest post
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

1049 Views

Last post by bfinio View the latest post
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

898 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

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Last post by carlstensfer102 View the latest post
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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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

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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
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by Josiahforerver » Fri Oct 22, 2021 1:17 am

2 Replies

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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

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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

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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
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by joe_dunca26 » Fri Sep 24, 2021 8:36 am

1 Replies

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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
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Attachment(s) by sacred » Tue Jul 06, 2021 8:54 pm

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What's the current flow and heat loss?

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

1 Replies

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help me pls

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

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Apple Oxidation

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

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