Ask an Expert: Grades 9-12: Physical Science

Grades 9-12: Physical Science

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Low pressure effects on Hard Disk Drive Performance/Health

Last post by norman40 « Wed Mar 18, 2015 8:10 am
Replies: 1
by EdgarHernandez1 » Sat Mar 14, 2015 10:10 pm

1 Replies

4408 Views

Last post by norman40
Wed Mar 18, 2015 8:10 am
to block sound with sound

Last post by HowardE « Tue Mar 17, 2015 8:59 am
Replies: 1
by skhlane » Tue Mar 17, 2015 8:29 am

1 Replies

8116 Views

Last post by HowardE
Tue Mar 17, 2015 8:59 am
Planetary Science --> Physics (Terik?)

Last post by janet41 « Mon Mar 16, 2015 8:44 pm
Replies: 4
by janet41 » Sun Mar 08, 2015 10:20 am

4 Replies

3470 Views

Last post by janet41
Mon Mar 16, 2015 8:44 pm
Connecting my circuit

Last post by foster_bailey « Mon Mar 16, 2015 7:53 pm
Replies: 2
by foster_bailey » Sun Mar 15, 2015 5:49 pm

2 Replies

2346 Views

Last post by foster_bailey
Mon Mar 16, 2015 7:53 pm
Help Please

Last post by Danixxoxxo « Mon Mar 16, 2015 3:56 pm
Replies: 2
by california-chill » Wed Mar 11, 2015 7:35 pm

2 Replies

2302 Views

Last post by Danixxoxxo
Mon Mar 16, 2015 3:56 pm
Drag

Last post by theborg « Sun Mar 15, 2015 4:35 am
Replies: 7
by Challengedstudent » Sat Jan 17, 2015 10:53 pm

7 Replies

4351 Views

Last post by theborg
Sun Mar 15, 2015 4:35 am
Benzalkonium chloride VS isopropyl alcohol - disinfection?

Last post by HowardE « Fri Mar 13, 2015 6:02 pm
Replies: 1
by curiousgirly » Fri Mar 13, 2015 1:12 pm

1 Replies

37973 Views

Last post by HowardE
Fri Mar 13, 2015 6:02 pm
Need suggestions for making of 3D Projector

Last post by ishanmitra « Fri Mar 13, 2015 7:30 am
Replies: 1
by ishanmitra » Thu Mar 12, 2015 12:44 pm

1 Replies

2242 Views

Last post by ishanmitra
Fri Mar 13, 2015 7:30 am
Can't Find Invertase!!! URGENT!!!!

Last post by SandbaggerOne « Thu Mar 12, 2015 3:06 pm
Replies: 3
by yayawesome » Sat Feb 28, 2015 10:08 pm

3 Replies

3054 Views

Last post by SandbaggerOne
Thu Mar 12, 2015 3:06 pm
Chem Science Fair Project - Hair Dye

Last post by norman40 « Wed Mar 11, 2015 8:55 am
Replies: 1
by faithalia » Tue Mar 10, 2015 7:34 pm

1 Replies

3282 Views

Last post by norman40
Wed Mar 11, 2015 8:55 am
Deep Knee Bends Springs

Last post by bfinio « Mon Mar 09, 2015 6:26 am
Replies: 15
by Kylie-Brez » Sat Oct 18, 2014 10:54 am

15 Replies

7279 Views

Last post by bfinio
Mon Mar 09, 2015 6:26 am
MAGNET ATTRACTION! URGENT

Last post by Terik Daly « Fri Mar 06, 2015 11:15 am
Replies: 1
by VictoriaLee » Sat Feb 28, 2015 12:49 pm

1 Replies

2370 Views

Last post by Terik Daly
Fri Mar 06, 2015 11:15 am
URGENT HYDROELECTRIC!!!

Last post by agustya « Fri Mar 06, 2015 12:45 am
Replies: 1
by VictoriaLee » Sat Feb 28, 2015 7:38 pm

1 Replies

2334 Views

Last post by agustya
Fri Mar 06, 2015 12:45 am
Catapults.

Last post by norman40 « Wed Mar 04, 2015 8:25 am
Replies: 1
by Sgarner » Mon Mar 02, 2015 7:36 pm

1 Replies

6297 Views

Last post by norman40
Wed Mar 04, 2015 8:25 am
Snell's Law

Last post by bfinio « Mon Mar 02, 2015 4:36 pm
Replies: 5
by kerri_widrick » Sun Mar 01, 2015 4:40 pm

5 Replies

5102 Views

Last post by bfinio
Mon Mar 02, 2015 4:36 pm
Portal (Game) Infinity Mirror Project DT

Last post by ConnorPatrick « Mon Mar 02, 2015 1:27 pm
Replies: 4
by ConnorPatrick » Thu Feb 26, 2015 6:10 pm

4 Replies

3591 Views

Last post by ConnorPatrick
Mon Mar 02, 2015 1:27 pm
Wind mill power

Last post by HowardE « Mon Mar 02, 2015 7:20 am
Replies: 1
by 04-12-98 » Sun Mar 01, 2015 6:34 pm

1 Replies

2505 Views

Last post by HowardE
Mon Mar 02, 2015 7:20 am
Magnet Attraction. Urgent!!!

Last post by VictoriaLee « Sun Mar 01, 2015 6:13 pm
Replies: 14
by VictoriaLee » Fri Feb 27, 2015 8:27 pm

14 Replies

7319 Views

Last post by VictoriaLee
Sun Mar 01, 2015 6:13 pm
Gauss Rifle

Last post by HowardE « Sun Mar 01, 2015 5:57 pm
Replies: 1
by Ryan98 » Sun Mar 01, 2015 4:41 pm

1 Replies

2603 Views

Last post by HowardE
Sun Mar 01, 2015 5:57 pm
Angle of the rail for a Garage Door Opener

Last post by sludge7051-x « Sun Mar 01, 2015 3:47 pm
Replies: 4
by sludge7051-x » Sat Feb 14, 2015 7:55 pm

4 Replies

49980 Views

Last post by sludge7051-x
Sun Mar 01, 2015 3:47 pm
Wave Energy (Catch That Wave!)

Last post by Lizzy14 « Fri Feb 27, 2015 5:18 pm
Replies: 4
by Lizzy14 » Thu Feb 26, 2015 10:32 pm

4 Replies

2629 Views

Last post by Lizzy14
Fri Feb 27, 2015 5:18 pm
Class Project

Last post by rafonja « Fri Feb 27, 2015 1:22 pm
Replies: 2
by rafonja » Wed Feb 25, 2015 2:41 pm

2 Replies

2165 Views

Last post by rafonja
Fri Feb 27, 2015 1:22 pm
The relationship between baryon asymmetry and dark forces

Last post by Terik Daly « Fri Feb 27, 2015 12:24 pm
Replies: 1
by jam_taylor » Mon Feb 23, 2015 12:07 pm

1 Replies

2089 Views

Last post by Terik Daly
Fri Feb 27, 2015 12:24 pm
Making Cell phone mircoscopes

Last post by norman40 « Wed Feb 25, 2015 7:41 am
Replies: 1
by Rsmond » Fri Feb 20, 2015 6:24 pm

1 Replies

2043 Views

Last post by norman40
Wed Feb 25, 2015 7:41 am
Solids--arrangement of atoms in lattice

Last post by ravi_i2h « Tue Feb 24, 2015 2:45 am
Replies: 2
by ravi_i2h » Mon Feb 16, 2015 4:26 am

2 Replies

2674 Views

Last post by ravi_i2h
Tue Feb 24, 2015 2:45 am
superconductivity or electron/x ray collision?

Last post by arula-r « Mon Feb 23, 2015 8:34 am
Replies: 5
by arula-r » Sat Feb 21, 2015 3:08 am

5 Replies

2606 Views

Last post by arula-r
Mon Feb 23, 2015 8:34 am
Water generator - Water from air

Last post by HowardE « Fri Feb 20, 2015 8:56 pm
Replies: 1
by dgomes256 » Fri Feb 20, 2015 1:25 pm

1 Replies

4086 Views

Last post by HowardE
Fri Feb 20, 2015 8:56 pm
Speed of Light

Last post by Terik Daly « Fri Feb 20, 2015 7:28 am
Replies: 1
by mynamewastaken » Thu Feb 19, 2015 7:10 pm

1 Replies

2516 Views

Last post by Terik Daly
Fri Feb 20, 2015 7:28 am
Calculating the speed of light using a microwave

Last post by HowardE « Fri Feb 20, 2015 5:17 am
Replies: 13
by mynamewastaken » Sun Feb 15, 2015 4:31 pm

13 Replies

5340 Views

Last post by HowardE
Fri Feb 20, 2015 5:17 am
Electrolyte challenge

Last post by SandbaggerOne « Thu Feb 19, 2015 8:47 am
Replies: 5
by AmPenn » Wed Feb 11, 2015 2:08 pm

5 Replies

3499 Views

Last post by SandbaggerOne
Thu Feb 19, 2015 8:47 am
Yeast Busters

Last post by norman40 « Wed Feb 18, 2015 10:18 am
Replies: 1
by HarrietAS » Sun Feb 15, 2015 2:56 pm

1 Replies

2668 Views

Last post by norman40
Wed Feb 18, 2015 10:18 am
Changing the total mass of a toy boat? HELP

Last post by norman40 « Wed Feb 18, 2015 9:02 am
Replies: 3
by pdesco » Tue Jan 20, 2015 8:42 pm

3 Replies

3972 Views

Last post by norman40
Wed Feb 18, 2015 9:02 am
Use of multi-meter to measure amps used, 120V 15 amp outlet

Last post by sludge7051-x « Tue Feb 17, 2015 9:26 pm
Replies: 24
by sludge7051-x » Tue Jan 13, 2015 3:25 pm

24 Replies

22153 Views

Last post by sludge7051-x
Tue Feb 17, 2015 9:26 pm
Electric Fields

Last post by agustya « Tue Feb 17, 2015 8:19 pm
Replies: 3
by PhysicalChemical » Mon Dec 22, 2014 9:08 am

3 Replies

3492 Views

Last post by agustya
Tue Feb 17, 2015 8:19 pm
Building theremin oscillators with amplifier

Last post by Tom1997 « Mon Feb 16, 2015 3:17 pm
Replies: 6
by Tom1997 » Sun Feb 15, 2015 7:12 pm

6 Replies

3513 Views

Last post by Tom1997
Mon Feb 16, 2015 3:17 pm
weather

Last post by bfinio « Mon Feb 16, 2015 7:51 am
Replies: 1
by alpacagirl » Fri Feb 13, 2015 11:46 am

1 Replies

2120 Views

Last post by bfinio
Mon Feb 16, 2015 7:51 am
Roller coaster marble track

Last post by SjChristy « Tue Feb 10, 2015 5:43 pm
Replies: 4
by SjChristy » Tue Feb 10, 2015 4:30 pm

4 Replies

4318 Views

Last post by SjChristy
Tue Feb 10, 2015 5:43 pm
A Change in the Winds: Studying Bernoulli's Principle Variab

Last post by HowardE « Sat Feb 07, 2015 9:46 am
Replies: 1
by logisticsdivision » Sat Feb 07, 2015 9:00 am

1 Replies

4381 Views

Last post by HowardE
Sat Feb 07, 2015 9:46 am
Why does vinegar corrode metal

Last post by norman40 « Thu Feb 05, 2015 5:25 pm
Replies: 1
by YOLO_BRO » Wed Feb 04, 2015 7:15 pm

1 Replies

15063 Views

Last post by norman40
Thu Feb 05, 2015 5:25 pm
melting jello

Last post by YOLO_BRO « Wed Feb 04, 2015 7:03 pm
Replies: 2
by YOLO_BRO » Sun Jan 04, 2015 10:23 am

2 Replies

3088 Views

Last post by YOLO_BRO
Wed Feb 04, 2015 7:03 pm
Project ideas

Last post by HowardE « Tue Feb 03, 2015 6:37 am
Replies: 1
by emily-joseph47 » Tue Feb 03, 2015 3:13 am

1 Replies

2041 Views

Last post by HowardE
Tue Feb 03, 2015 6:37 am
Electromagnet not working!

Last post by ajinkyakhadilkar « Sat Jan 31, 2015 2:55 pm
Replies: 5
by ajinkyakhadilkar » Sat Jan 31, 2015 1:37 pm

5 Replies

9360 Views

Last post by ajinkyakhadilkar
Sat Jan 31, 2015 2:55 pm
Reading literature and not understanding it.

Last post by Terik Daly « Fri Jan 30, 2015 12:18 pm
Replies: 3
by TeamRocketGrunt » Fri Mar 14, 2014 4:22 pm

3 Replies

5355 Views

Last post by Terik Daly
Fri Jan 30, 2015 12:18 pm
Cell Phone Microscope

Last post by HowardE « Thu Jan 29, 2015 3:13 pm
Replies: 1
by cisco23 » Thu Jan 29, 2015 10:09 am

1 Replies

2108 Views

Last post by HowardE
Thu Jan 29, 2015 3:13 pm
High altitude affects on electronics. Advice?

Last post by HowardE « Tue Jan 27, 2015 8:16 am
Replies: 1
by EdgarHernandez1 » Mon Jan 26, 2015 8:49 pm

1 Replies

4238 Views

Last post by HowardE
Tue Jan 27, 2015 8:16 am
A question about a contact microphone

Last post by zeron824 « Sat Jan 24, 2015 4:17 pm
Replies: 4
by zeron824 » Sat Jan 24, 2015 1:31 pm

4 Replies

4422 Views

Last post by zeron824
Sat Jan 24, 2015 4:17 pm
Mathematical equations that prove a chemical formula works

Last post by Seb_Grubb1380 « Fri Jan 23, 2015 1:04 pm
Replies: 6
by Seb_Grubb1380 » Sat Jan 17, 2015 7:43 pm

6 Replies

3042 Views

Last post by Seb_Grubb1380
Fri Jan 23, 2015 1:04 pm
The physics of follow through when swinging a bat.

Last post by bfinio « Thu Jan 22, 2015 3:57 pm
Replies: 3
by lbarnes777 » Thu Jan 22, 2015 10:00 am

3 Replies

4820 Views

Last post by bfinio
Thu Jan 22, 2015 3:57 pm
Magnetic Field

Last post by SandbaggerOne « Wed Jan 21, 2015 8:04 pm
Replies: 2
by PhysicalChemical » Wed Jan 21, 2015 5:54 pm

2 Replies

2661 Views

Last post by SandbaggerOne
Wed Jan 21, 2015 8:04 pm
Need help on building a model of the insulin pump?

Last post by norman40 « Wed Jan 21, 2015 8:17 am
Replies: 1
by khalidh223 » Sun Jan 18, 2015 9:01 pm

1 Replies

2110 Views

Last post by norman40
Wed Jan 21, 2015 8:17 am

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