Ask an Expert: Grades 9-12: Physical Science

Grades 9-12: Physical Science

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Acid denaturation of proteins can be considered catalytic?

Last post by norman40 « Sat Nov 09, 2019 7:03 pm
Replies: 3
by ymahmoud » Sun Nov 03, 2019 9:34 am

3 Replies

2333 Views

Last post by norman40
Sat Nov 09, 2019 7:03 pm
how to measure ph

Last post by Jason123321 « Sat Nov 09, 2019 6:20 pm
Replies: 11
by Jason123321 » Tue Oct 08, 2019 7:24 pm

11 Replies

4436 Views

Last post by Jason123321
Sat Nov 09, 2019 6:20 pm
Microbial Fuel Cell multimeter issue

Last post by LeungWilley « Thu Nov 07, 2019 7:23 pm
Replies: 1
by 504d931ddd474dac92a4d4bf7ad866a0 » Wed Nov 06, 2019 6:49 pm

1 Replies

1747 Views

Last post by LeungWilley
Thu Nov 07, 2019 7:23 pm
Helicopter lifeoff

Last post by norman40 « Wed Nov 06, 2019 1:17 pm
Replies: 1
by msungheing » Mon Nov 04, 2019 10:50 pm

1 Replies

1749 Views

Last post by norman40
Wed Nov 06, 2019 1:17 pm
About chip compatibility issues

Last post by MadelineB « Tue Nov 05, 2019 1:53 pm
Replies: 1
by shijian » Tue Nov 05, 2019 2:10 am

1 Replies

1849 Views

Last post by MadelineB
Tue Nov 05, 2019 1:53 pm
IB Chemistry Project

Last post by pharrast « Mon Nov 04, 2019 3:52 pm
Replies: 1
by kkarin » Sun Nov 03, 2019 8:58 pm

1 Replies

1851 Views

Last post by pharrast
Mon Nov 04, 2019 3:52 pm
Help me please....

Last post by o_finucan7 « Sun Nov 03, 2019 4:50 pm
Replies: 2
by o_finucan7 » Sun Nov 03, 2019 2:39 pm

2 Replies

12708 Views

Last post by o_finucan7
Sun Nov 03, 2019 4:50 pm
Chemistry science battery coin

Last post by ca422d2171bf4ac2a81d8490db820dd2 « Sat Nov 02, 2019 7:04 pm
Replies: 7
by ca422d2171bf4ac2a81d8490db820dd2 » Mon Oct 21, 2019 1:41 am

7 Replies

3539 Views

Last post by ca422d2171bf4ac2a81d8490db820dd2
Sat Nov 02, 2019 7:04 pm
I need help.

Last post by NehaK6 « Sat Nov 02, 2019 4:11 pm
Replies: 2
by dann0003 » Thu Oct 31, 2019 7:45 pm

2 Replies

2956 Views

Last post by NehaK6
Sat Nov 02, 2019 4:11 pm
Another way to Run Cars?

Last post by MadelineB « Wed Oct 30, 2019 9:41 pm
Replies: 1
by timeangel18 » Mon Oct 28, 2019 3:22 pm

1 Replies

2063 Views

Last post by MadelineB
Wed Oct 30, 2019 9:41 pm
Deep Knee Bends: Super Advanced Portion Help

Last post by norman40 « Wed Oct 30, 2019 8:21 am
Replies: 1
by msthg5000 » Wed Oct 23, 2019 6:10 pm

1 Replies

2152 Views

Last post by norman40
Wed Oct 30, 2019 8:21 am
chemistry Adsorption: Dyeing Fabrics with Kool-Aid)

Last post by Rosy_Frahi « Wed Oct 23, 2019 2:31 pm
Replies: 2
by Rosy_Frahi » Mon Oct 21, 2019 3:02 pm

2 Replies

4553 Views

Last post by Rosy_Frahi
Wed Oct 23, 2019 2:31 pm
How to measure BPA using a UV/VIS Spectrophotometer

Last post by norman40 « Wed Oct 23, 2019 12:49 pm
Replies: 1
by Annabrowne » Sun Oct 20, 2019 12:17 pm

1 Replies

3943 Views

Last post by norman40
Wed Oct 23, 2019 12:49 pm
Degradation of polymers in UV light with photocatalyst ZnO

Last post by norman40 « Wed Oct 23, 2019 12:05 pm
Replies: 1
by Tongkhangte » Fri Oct 18, 2019 8:29 am

1 Replies

2074 Views

Last post by norman40
Wed Oct 23, 2019 12:05 pm
Hacking air gap

Last post by Kaians930 « Wed Oct 23, 2019 6:36 pm
Replies: 2
by Kaians930 » Sun Oct 20, 2019 1:25 pm

2 Replies

12616 Views

Last post by Kaians930
Wed Oct 23, 2019 6:36 pm
Can we arrange electrons to make our own elements?

Last post by IlI « Sun Oct 20, 2019 11:07 am
Replies: 1
by devilvert » Thu Oct 17, 2019 5:13 pm

1 Replies

2126 Views

Last post by IlI
Sun Oct 20, 2019 11:07 am
Chemistry Project Ideas

Last post by kbannam « Fri Oct 11, 2019 4:43 pm
Replies: 2
by kathaeee » Fri Oct 04, 2019 7:00 am

2 Replies

2429 Views

Last post by kbannam
Fri Oct 11, 2019 4:43 pm
Particles

Last post by LeungWilley « Thu Oct 10, 2019 5:20 pm
Replies: 1
by Da-Neil » Thu Oct 10, 2019 1:50 pm

1 Replies

2335 Views

Last post by LeungWilley
Thu Oct 10, 2019 5:20 pm
proof of concept for science fair

Last post by Pinkvilla « Thu Oct 10, 2019 7:57 am
Replies: 2
by Pinkvilla » Sun Oct 06, 2019 3:07 pm

2 Replies

2264 Views

Last post by Pinkvilla
Thu Oct 10, 2019 7:57 am
Water in a ballon

Last post by IlI « Sun Oct 06, 2019 10:07 am
Replies: 5
by WhiteBead » Sat Sep 28, 2019 10:02 pm

5 Replies

2912 Views

Last post by IlI
Sun Oct 06, 2019 10:07 am
Time dilation

Last post by LeungWilley « Thu Oct 03, 2019 1:06 pm
Replies: 1
by Feynman2003 » Thu Oct 03, 2019 3:26 am

1 Replies

2274 Views

Last post by LeungWilley
Thu Oct 03, 2019 1:06 pm
About polyacrylate, super absorbent polymer

Last post by NehaK6 « Sat Sep 28, 2019 10:46 am
Replies: 2
by keerthanapadma » Tue Sep 24, 2019 5:22 am

2 Replies

3770 Views

Last post by NehaK6
Sat Sep 28, 2019 10:46 am
Spin rate

Last post by IlI « Sun Sep 22, 2019 12:59 pm
Replies: 2
by Jenmorris » Tue Sep 17, 2019 5:11 am

2 Replies

2335 Views

Last post by IlI
Sun Sep 22, 2019 12:59 pm
Heart Project 2019

Last post by rrv17 « Wed Sep 18, 2019 6:59 pm
Replies: 2
by gennyb04 » Sun Sep 15, 2019 7:52 pm

2 Replies

2382 Views

Last post by rrv17
Wed Sep 18, 2019 6:59 pm
Making object appear floating using magnet and lenz's law

Last post by pharrast « Mon Sep 16, 2019 5:14 pm
Replies: 1
by MaxMart » Sun Sep 15, 2019 1:29 am

1 Replies

2385 Views

Last post by pharrast
Mon Sep 16, 2019 5:14 pm
Science experiment help ASAP!!

Last post by IlI « Sun Sep 15, 2019 7:56 pm
Replies: 1
by rubygh » Fri Sep 13, 2019 11:46 pm

1 Replies

2208 Views

Last post by IlI
Sun Sep 15, 2019 7:56 pm
Specifics on Bernoulli’s Principal

Last post by IlI « Sun Sep 15, 2019 4:05 pm
Replies: 1
by Dennies » Fri Sep 13, 2019 11:57 am

1 Replies

2153 Views

Last post by IlI
Sun Sep 15, 2019 4:05 pm
Wire recorders

Last post by norman40 « Sun Sep 15, 2019 2:25 pm
Replies: 12
by cormacwmccreary » Tue Aug 20, 2019 11:55 am

12 Replies

4118 Views

Last post by norman40
Sun Sep 15, 2019 2:25 pm
Hacking the air gap

Last post by bfinio « Fri Sep 13, 2019 1:27 pm
Replies: 6
by Anonjoe » Wed Sep 11, 2019 4:44 am

6 Replies

14720 Views

Last post by bfinio
Fri Sep 13, 2019 1:27 pm
Converting times into seconds

Last post by LeungWilley « Thu Sep 12, 2019 7:34 pm
Replies: 3
by DaRafster » Thu Sep 05, 2019 4:35 pm

3 Replies

2816 Views

Last post by LeungWilley
Thu Sep 12, 2019 7:34 pm
ELECTROMAGNETS

Last post by LeungWilley « Thu Sep 12, 2019 7:18 pm
Replies: 1
by spiderman333 » Wed Sep 11, 2019 5:54 pm

1 Replies

2240 Views

Last post by LeungWilley
Thu Sep 12, 2019 7:18 pm
Help with Scientific bleep project for class

Last post by norman40 « Wed Sep 11, 2019 3:24 pm
Replies: 1
by manksy » Tue Sep 10, 2019 6:19 pm

1 Replies

2211 Views

Last post by norman40
Wed Sep 11, 2019 3:24 pm
Nitinol Alternatives/ Artificial Muscles for medical assistance robots

Last post by norman40 « Wed Sep 11, 2019 2:59 pm
Replies: 1
by BuckStanley » Sat Sep 07, 2019 5:04 pm

1 Replies

2421 Views

Last post by norman40
Wed Sep 11, 2019 2:59 pm
Changing air composition on another planet

Last post by IlI « Sun Sep 08, 2019 1:47 pm
Replies: 1
by Inb » Sat Sep 07, 2019 6:01 pm

1 Replies

22143 Views

Last post by IlI
Sun Sep 08, 2019 1:47 pm
Science Fair Help!!!

Last post by IlI « Sun Sep 08, 2019 1:03 pm
Replies: 2
by lexi1224 » Mon Sep 02, 2019 7:42 am

2 Replies

2267 Views

Last post by IlI
Sun Sep 08, 2019 1:03 pm
bleep Gas Combustion

Last post by IlI « Sun Sep 08, 2019 12:03 pm
Replies: 1
by JVIVI » Sat Sep 07, 2019 12:36 am

1 Replies

2346 Views

Last post by IlI
Sun Sep 08, 2019 12:03 pm
Measuring the specific heat of water and oil

Last post by IlI « Sun Sep 08, 2019 11:40 am
Replies: 2
by 588457c9b6b54f01984c1cc586f89faa » Sat Aug 24, 2019 2:26 am

2 Replies

3683 Views

Last post by IlI
Sun Sep 08, 2019 11:40 am
Nitinol alternatives

Last post by SciB « Sat Sep 07, 2019 2:18 pm
Replies: 1
by BuckStanley » Thu Sep 05, 2019 3:45 pm

1 Replies

4154 Views

Last post by SciB
Sat Sep 07, 2019 2:18 pm
Maintaining voltage while dropping amperage

Last post by EmmaGriffiths « Thu Sep 05, 2019 3:30 pm
Replies: 1
by charliemmann » Sat Aug 31, 2019 10:39 am

1 Replies

2192 Views

Last post by EmmaGriffiths
Thu Sep 05, 2019 3:30 pm
Creating A Prototype For Science Fair Project

Last post by norman40 « Wed Sep 04, 2019 11:04 am
Replies: 1
by 6520bb897aeb483eb6f48452898af0ca » Sat Aug 31, 2019 2:39 pm

1 Replies

2195 Views

Last post by norman40
Wed Sep 04, 2019 11:04 am
Microbial Fuel Cells

Last post by SohanRasul « Mon Sep 02, 2019 4:13 pm
Replies: 8
by SohanRasul » Fri Aug 02, 2019 7:26 am

8 Replies

3905 Views

Last post by SohanRasul
Mon Sep 02, 2019 4:13 pm
Baking soda and vinegar

Last post by norman40 « Sun Sep 01, 2019 2:08 pm
Replies: 3
by Craig13 » Wed Aug 28, 2019 12:47 pm

3 Replies

3635 Views

Last post by norman40
Sun Sep 01, 2019 2:08 pm
Glowstick Experiment Modification

Last post by bfinio « Fri Aug 23, 2019 6:00 am
Replies: 5
by WandaPanda » Sun Aug 18, 2019 7:09 pm

5 Replies

3239 Views

Last post by bfinio
Fri Aug 23, 2019 6:00 am
Multimeter causing power to flicker

Last post by Aedhot4 « Thu Aug 08, 2019 5:22 am
Replies: 2
by Aedhot4 » Mon Aug 05, 2019 4:03 pm

2 Replies

2347 Views

Last post by Aedhot4
Thu Aug 08, 2019 5:22 am
Our Galaxy/the universe

Last post by norman40 « Wed Aug 07, 2019 3:00 pm
Replies: 1
by 3ee9679cf6c94c2899516b7591728526 » Fri Aug 02, 2019 11:36 pm

1 Replies

2216 Views

Last post by norman40
Wed Aug 07, 2019 3:00 pm
Astronomy

Last post by norman40 « Wed Aug 07, 2019 2:59 pm
Replies: 1
by shreikers » Mon Aug 05, 2019 9:19 am

1 Replies

2157 Views

Last post by norman40
Wed Aug 07, 2019 2:59 pm
frequency-dependent sound absorption experiment

Last post by norman40 « Wed Aug 07, 2019 2:57 pm
Replies: 1
by bounjr123 » Wed Aug 07, 2019 5:04 am

1 Replies

2185 Views

Last post by norman40
Wed Aug 07, 2019 2:57 pm
amount of copper in brass

Last post by norman40 « Thu Aug 01, 2019 12:08 pm
Replies: 1
by 330c6f4a8f6c48678483834c72aacd2e » Wed Jul 31, 2019 6:39 am

1 Replies

2151 Views

Last post by norman40
Thu Aug 01, 2019 12:08 pm
I ha e a Science Question, about a mysterious effect I have observed involving electricity.

Last post by norman40 « Wed Jul 24, 2019 2:23 pm
Replies: 1
by SchoolHomeVR » Sat Jul 20, 2019 5:21 pm

1 Replies

3413 Views

Last post by norman40
Wed Jul 24, 2019 2:23 pm
Electronic connection

Last post by charlesg « Sun Jul 21, 2019 5:10 pm
Replies: 1
by direct3 » Fri Jul 19, 2019 2:30 pm

1 Replies

23439 Views

Last post by charlesg
Sun Jul 21, 2019 5:10 pm

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