Ask an Expert: Grades 9-12: Physical Science

Grades 9-12: Physical Science

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Arrangement of Lewis Dot Diagrams

Last post by norman40 « Wed Apr 03, 2019 3:12 pm
Replies: 1
by angeldust1991 » Tue Apr 02, 2019 1:06 pm

1 Replies

2081 Views

Last post by norman40
Wed Apr 03, 2019 3:12 pm
Designing an experiment

Last post by norman40 « Wed Apr 03, 2019 3:10 pm
Replies: 1
by Tatti45 » Mon Apr 01, 2019 5:42 pm

1 Replies

2067 Views

Last post by norman40
Wed Apr 03, 2019 3:10 pm
What are the rules for paper bridge challenge

Last post by bfinio « Mon Apr 01, 2019 8:46 am
Replies: 1
by KozhinMahdi » Sat Mar 30, 2019 7:09 am

1 Replies

2140 Views

Last post by bfinio
Mon Apr 01, 2019 8:46 am
Physics

Last post by MadelineB « Sun Mar 31, 2019 8:53 pm
Replies: 1
by johnwall » Sat Mar 30, 2019 8:39 pm

1 Replies

1726 Views

Last post by MadelineB
Sun Mar 31, 2019 8:53 pm
Banking a basket experiment

Last post by Bd552161 « Wed Mar 27, 2019 5:46 pm
Replies: 3
by Bd552161 » Sun Mar 24, 2019 4:31 pm

3 Replies

9911 Views

Last post by Bd552161
Wed Mar 27, 2019 5:46 pm
Could someone please help me with this mass calculation question?

Last post by norman40 « Wed Mar 27, 2019 4:06 pm
Replies: 1
by Bathtubmermaid » Tue Mar 26, 2019 2:37 pm

1 Replies

1999 Views

Last post by norman40
Wed Mar 27, 2019 4:06 pm
trebuchet research

Last post by LeungWilley « Thu Mar 21, 2019 5:21 pm
Replies: 1
by 5c87eb63059145748af79503913e2f97 » Wed Mar 20, 2019 6:49 pm

1 Replies

1928 Views

Last post by LeungWilley
Thu Mar 21, 2019 5:21 pm
two and four point measurement

Last post by norman40 « Wed Mar 20, 2019 4:50 pm
Replies: 1
by KConley66 » Wed Mar 20, 2019 8:59 am

1 Replies

1923 Views

Last post by norman40
Wed Mar 20, 2019 4:50 pm
Building an Artificial Pancreas - Normalization

Last post by norman40 « Wed Mar 20, 2019 4:34 pm
Replies: 1
by casazzar » Fri Mar 15, 2019 10:54 am

1 Replies

20067 Views

Last post by norman40
Wed Mar 20, 2019 4:34 pm
How do I calculate moles in the following question

Last post by norman40 « Sat Mar 16, 2019 3:37 pm
Replies: 1
by bsjyzx » Wed Mar 13, 2019 8:46 pm

1 Replies

2344 Views

Last post by norman40
Sat Mar 16, 2019 3:37 pm
Material Science

Last post by MadelineB « Tue Mar 12, 2019 9:22 pm
Replies: 1
by ManiEleven » Mon Mar 11, 2019 12:01 am

1 Replies

1931 Views

Last post by MadelineB
Tue Mar 12, 2019 9:22 pm
fuel

Last post by LeungWilley « Thu Mar 07, 2019 7:07 pm
Replies: 1
by matcha » Wed Mar 06, 2019 3:22 am

1 Replies

2253 Views

Last post by LeungWilley
Thu Mar 07, 2019 7:07 pm
Roller Coaster Engineering

Last post by 6d9f1d7e1a094c48b44af17c2dba6a49 « Mon Mar 04, 2019 7:49 am
Replies: 2
by 6d9f1d7e1a094c48b44af17c2dba6a49 » Sun Feb 24, 2019 6:55 am

2 Replies

3091 Views

Last post by 6d9f1d7e1a094c48b44af17c2dba6a49
Mon Mar 04, 2019 7:49 am
Control group

Last post by MadelineB « Sun Mar 03, 2019 4:12 pm
Replies: 1
by aliyahread » Sun Mar 03, 2019 9:21 am

1 Replies

1863 Views

Last post by MadelineB
Sun Mar 03, 2019 4:12 pm
Using PEM fuel cells in mainstream use

Last post by LeungWilley « Thu Feb 28, 2019 7:10 pm
Replies: 1
by 0614dcd64660473a9c516f49c27ee85b » Wed Feb 27, 2019 5:49 pm

1 Replies

1964 Views

Last post by LeungWilley
Thu Feb 28, 2019 7:10 pm
Science Fair

Last post by norman40 « Wed Feb 27, 2019 4:37 pm
Replies: 1
by Kenniette » Tue Feb 26, 2019 3:09 pm

1 Replies

1868 Views

Last post by norman40
Wed Feb 27, 2019 4:37 pm
Lightning

Last post by MadelineB « Tue Feb 26, 2019 3:48 pm
Replies: 1
by Journeyman » Tue Feb 26, 2019 3:28 am

1 Replies

1933 Views

Last post by MadelineB
Tue Feb 26, 2019 3:48 pm
Title of my poster

Last post by audreyln « Tue Feb 26, 2019 8:28 am
Replies: 1
by Honeyflowers » Sun Feb 24, 2019 12:19 pm

1 Replies

2326 Views

Last post by audreyln
Tue Feb 26, 2019 8:28 am
Deionized water

Last post by eedoherty « Mon Feb 25, 2019 6:55 pm
Replies: 1
by pranavv365 » Sun Feb 24, 2019 11:42 am

1 Replies

1846 Views

Last post by eedoherty
Mon Feb 25, 2019 6:55 pm
SCIENCE FAIR IDEAS!

Last post by norman40 « Sat Feb 23, 2019 9:21 am
Replies: 1
by Shevarul » Sat Feb 23, 2019 6:35 am

1 Replies

2007 Views

Last post by norman40
Sat Feb 23, 2019 9:21 am
Pleasehelp with communications project

Last post by norman40 « Sat Feb 23, 2019 9:12 am
Replies: 1
by zaria27 » Mon Feb 18, 2019 10:31 pm

1 Replies

2153 Views

Last post by norman40
Sat Feb 23, 2019 9:12 am
Designing a self propelled car with given specifications

Last post by norman40 « Thu Feb 21, 2019 5:50 am
Replies: 3
by ramvriksh » Tue Feb 19, 2019 7:09 am

3 Replies

2670 Views

Last post by norman40
Thu Feb 21, 2019 5:50 am
Is water THE MOST polar solvent in the world? Why do acids dissociate when put in water?

Last post by chemcuriosityroamer « Wed Feb 20, 2019 4:44 pm
Replies: 2
by chemcuriosityroamer » Tue Feb 19, 2019 4:44 pm

2 Replies

2504 Views

Last post by chemcuriosityroamer
Wed Feb 20, 2019 4:44 pm
help me figure out what my project hypothesis is supposed to be??

Last post by norman40 « Wed Feb 20, 2019 5:34 am
Replies: 1
by bethieboo » Mon Feb 18, 2019 12:47 pm

1 Replies

1875 Views

Last post by norman40
Wed Feb 20, 2019 5:34 am
I NEED HELP ASAP!!!!

Last post by norman40 « Wed Feb 20, 2019 5:18 am
Replies: 1
by Schyler » Sun Feb 17, 2019 7:48 pm

1 Replies

1877 Views

Last post by norman40
Wed Feb 20, 2019 5:18 am
Chemistry Project Topic

Last post by norman40 « Tue Feb 19, 2019 6:05 am
Replies: 26
by kierracov » Sun Jan 13, 2019 3:35 pm

26 Replies

16268 Views

Last post by norman40
Tue Feb 19, 2019 6:05 am
Infinity mirror advance project

Last post by norman40 « Sun Feb 17, 2019 4:29 pm
Replies: 1
by nancy2323 » Fri Feb 15, 2019 8:45 pm

1 Replies

2121 Views

Last post by norman40
Sun Feb 17, 2019 4:29 pm
Reflection?

Last post by norman40 « Sun Feb 17, 2019 11:55 am
Replies: 1
by JonathanTorres212 » Sat Feb 16, 2019 8:49 pm

1 Replies

1917 Views

Last post by norman40
Sun Feb 17, 2019 11:55 am
Candle Carousel project doesn´t spin...

Last post by norman40 « Wed Feb 13, 2019 4:45 pm
Replies: 1
by anabelaestudante » Wed Feb 13, 2019 7:35 am

1 Replies

4507 Views

Last post by norman40
Wed Feb 13, 2019 4:45 pm
science fair emergency

Last post by norman40 « Wed Feb 13, 2019 4:15 pm
Replies: 1
by niquester717 » Tue Feb 12, 2019 5:11 pm

1 Replies

1855 Views

Last post by norman40
Wed Feb 13, 2019 4:15 pm
Wire recording

Last post by norman40 « Tue Feb 12, 2019 7:46 am
Replies: 3
by clo » Sun Feb 10, 2019 12:40 am

3 Replies

2457 Views

Last post by norman40
Tue Feb 12, 2019 7:46 am
How can I innovate/improve a shoebox smartphone projector?

Last post by NaCl-y « Sat Feb 09, 2019 3:06 am
Replies: 4
by NaCl-y » Tue Feb 05, 2019 2:20 pm

4 Replies

11252 Views

Last post by NaCl-y
Sat Feb 09, 2019 3:06 am
How to make a solid rocket engine

Last post by norman40 « Fri Feb 08, 2019 4:39 pm
Replies: 1
by 9833186b8b4d49daa17f2847f91512c5 » Thu Feb 07, 2019 6:18 pm

1 Replies

2316 Views

Last post by norman40
Fri Feb 08, 2019 4:39 pm
How to find the Mass / concentration of sugars in sample of watermelon juice.

Last post by norman40 « Fri Feb 08, 2019 4:30 pm
Replies: 1
by Captivate » Wed Feb 06, 2019 3:47 pm

1 Replies

2000 Views

Last post by norman40
Fri Feb 08, 2019 4:30 pm
Parachute Inquiry

Last post by gg04 « Mon Feb 04, 2019 7:11 pm
Replies: 2
by gg04 » Sat Feb 02, 2019 3:03 pm

2 Replies

1976 Views

Last post by gg04
Mon Feb 04, 2019 7:11 pm
Yeast Metabolism with and without Aeration NEED HELP ASAP

Last post by norman40 « Mon Feb 04, 2019 4:53 pm
Replies: 1
by DeemaaaO » Sun Feb 03, 2019 10:23 pm

1 Replies

1928 Views

Last post by norman40
Mon Feb 04, 2019 4:53 pm
Water to fuel to water buffer solution

Last post by norman40 « Mon Feb 04, 2019 4:43 pm
Replies: 8
by NEEDHELP123987 » Sun Jan 27, 2019 9:55 am

8 Replies

3297 Views

Last post by norman40
Mon Feb 04, 2019 4:43 pm
Questions About Improving Sodium Hypochlorite Cleaning Efficiency

Last post by norman40 « Mon Feb 04, 2019 4:06 pm
Replies: 1
by Appleroofcleaning » Sun Feb 03, 2019 6:29 pm

1 Replies

1916 Views

Last post by norman40
Mon Feb 04, 2019 4:06 pm
How does wraping a wifi router in aluminum help speed up the speed

Last post by norman40 « Mon Feb 04, 2019 3:59 pm
Replies: 1
by kingfaisal » Sat Feb 02, 2019 11:48 am

1 Replies

2056 Views

Last post by norman40
Mon Feb 04, 2019 3:59 pm
Help in choosing a topic please!!!

Last post by norman40 « Mon Feb 04, 2019 3:44 pm
Replies: 1
by Dan56789 » Fri Jan 25, 2019 9:15 pm

1 Replies

19746 Views

Last post by norman40
Mon Feb 04, 2019 3:44 pm
What are good sources for the construction of hair hygrometers?

Last post by MadelineB « Fri Feb 01, 2019 4:41 pm
Replies: 1
by Veasnu » Fri Feb 01, 2019 8:10 am

1 Replies

1985 Views

Last post by MadelineB
Fri Feb 01, 2019 4:41 pm
Do you have any ideas?

Last post by norman40 « Tue Jan 29, 2019 5:23 pm
Replies: 2
by lindakind89 » Tue Jan 29, 2019 1:48 am

2 Replies

2052 Views

Last post by norman40
Tue Jan 29, 2019 5:23 pm
hi guys, i have a question please help me!

Last post by norman40 « Tue Jan 29, 2019 5:12 pm
Replies: 1
by philipval » Tue Jan 29, 2019 2:09 am

1 Replies

1954 Views

Last post by norman40
Tue Jan 29, 2019 5:12 pm
Need help?

Last post by norman40 « Tue Jan 29, 2019 5:06 pm
Replies: 1
by philipval » Tue Jan 29, 2019 2:07 am

1 Replies

1792 Views

Last post by norman40
Tue Jan 29, 2019 5:06 pm
measuring the speed of sound in water

Last post by norman40 « Tue Jan 29, 2019 4:53 pm
Replies: 1
by scienceguy1237 » Mon Jan 28, 2019 3:02 pm

1 Replies

1965 Views

Last post by norman40
Tue Jan 29, 2019 4:53 pm
Orange Juice Titration

Last post by norman40 « Tue Jan 29, 2019 4:24 pm
Replies: 1
by vyu » Sun Jan 27, 2019 12:15 am

1 Replies

2334 Views

Last post by norman40
Tue Jan 29, 2019 4:24 pm
camera exposure question

Last post by colleenpolka « Sat Jan 26, 2019 8:03 pm
Replies: 2
by colleenpolka » Fri Jan 11, 2019 2:58 pm

2 Replies

2397 Views

Last post by colleenpolka
Sat Jan 26, 2019 8:03 pm
Yeast Metabolism with and without Aeration

Last post by DeemaaaO « Fri Jan 25, 2019 8:44 pm
Replies: 2
by DeemaaaO » Fri Jan 18, 2019 9:18 pm

2 Replies

2082 Views

Last post by DeemaaaO
Fri Jan 25, 2019 8:44 pm
How to find out which elements are available in a galaxy

Last post by LeungWilley « Thu Jan 24, 2019 7:51 pm
Replies: 3
by Aksh » Wed Jan 09, 2019 7:35 pm

3 Replies

2325 Views

Last post by LeungWilley
Thu Jan 24, 2019 7:51 pm
help with chamomile tea

Last post by norman40 « Wed Jan 23, 2019 4:02 pm
Replies: 1
by mummia20 » Tue Jan 22, 2019 7:32 pm

1 Replies

2158 Views

Last post by norman40
Wed Jan 23, 2019 4:02 pm

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