Number of results: 88,171
Please check these! Physical or Chemical properties? 1. solubility = physical 2. melting point = physical 3. reacts with water to form a gas = physical
Wednesday, September 12, 2012 at 10:54pm by Reed
Intro to Physical Science
Define physical science Andrew: I went to www.dictionary.com and typed in physical science. The following is what it returned.I hope this helps. physical science 1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and ...
Saturday, September 9, 2006 at 3:31pm by andrew
A=Vf - Vi divided by 29 seconds Can you please help me. This is 9th grade Physical Science homework.
Tuesday, September 13, 2011 at 6:15pm by Katelyn
Physical Science in Action
I need help with the scientific method for physical Science in Action and all I have so far is: Scientific methods in a circle and connecting circles with Scientific models , Experiments , observation and calculations and I have one circle left!! Please help ASAP
Sunday, August 16, 2009 at 6:00pm by Patsie
gimme a side of what physical science is. I know there's no shortcuts but it means alot of ev'rything I gotta know. Sho' me. I have little understanding of what you wrote. When one tries to communicate in non-standard English, the results are unpredictable. Here is a ...
Saturday, September 3, 2005 at 4:24pm by Henry
Will you please check? Physical or chemical properties 1. bitter taste = physical taste 2. can neutralize a base= physical property 3. boiling point = physical property 4. reacts with a base to form water= physical 5. reacts with acid to form hydrogen = chemical property 6. ...
Wednesday, September 12, 2012 at 9:51pm by Reed
Intro to physical science
I need a relating topic to physical science that is relating to the reasl world?
Saturday, May 30, 2009 at 10:22pm by Tanisha
I need help on a problem that i asked about 3 hrs ago..please help!!
Tuesday, July 19, 2011 at 4:29pm by king
Physical Science Need Help Please!
A light beam has a frequency of 5 x 1015 Hz. What is its wavelength?
Tuesday, November 13, 2012 at 5:15pm by Jana
I forgot to add this question into my other Physical Science Posts..sorry What is the difference between mass and weight? Mass is what an object contains inside. Weight is a measure of how strongly gravity pulls on that matter. [I got this from the internet but still need to ...
Wednesday, March 18, 2009 at 8:15pm by mysterychicken
year 7 science
Chemical and physical changes. please could someone help me i need to say whether the following are chemical or physical changes and explain why. I`ve looked myself but i can`t find anything that helps. grateful for any help .thanks Frying an egg , burning paper , mixing a ...
Tuesday, April 29, 2008 at 9:05am by choccy
7th Grade Science
what physical force can cause a change in the state of matter what is the difference between chemical and physical changes what occurs during Bose-Einstein condensation Please help me.
Tuesday, September 4, 2012 at 10:00pm by completeidiot
Below i copied the assignment but, I only need help finding a peer reviewed article about the effects of optimism on physical help. Can someone PLEASE help me fast? Here is the assignment.... Find a peer reviewed article which discusses the effects of optimism on physical and ...
Thursday, July 15, 2010 at 1:01am by QueenP
Ok I need some help of course. Please help me! What are the kinds of Eletromagnetic waves? How many are there? Ultra violet, gamma rays, x rays... What are the rest of them.. Thank you!
Tuesday, April 21, 2009 at 6:30pm by sjsjfs
If the absolute temperature of a gas is 600K, the temperature in degrees Celsius is? C= K-273 327 C what is the first step to designing an experiment what is a mole in measurement like mole mass. please help me get info. explain the relationship between velocity and ...
Thursday, June 16, 2005 at 4:39pm by Julio Paz
not exactly physical science, but I'm confused about how you tell the charge of elements in the B groups on the periodic table
Sunday, June 15, 2008 at 3:49pm by jowy
PHYSICAL SCIENCE QUESTION PLEASE I NEED YOUR HELP!
What is common to all light sources, including incandescent, fluorescent, neon, halogen, laser, and sodium-vapor devices? Thank You I really appreciate your help! :3
Thursday, March 29, 2012 at 2:50pm by jEnN
Who discovered Respiration?..Ever single time i google it, it comes up as cellular respiration..i need breathing respiration..please help me!!!!! ~;D~
Tuesday, February 1, 2011 at 8:06pm by Sabrina
Need to confirm if the verbs in the sentences are physical or mental actions: 1. However he won only 2 medals --Physical 2. Spitz also teamed with three other Americans in 3 relay races - Physical 3. In total, Spitz won s7 gold medals in a single Olympics---physical 4. That ...
Monday, March 17, 2014 at 6:56pm by cee
Will you please give me an article discusses the effects of optimism on physical and psychological health.(you may need to find two articles in order to cover both the physical and the psychological areas).
Wednesday, July 9, 2008 at 1:57pm by BaBa
Hello! I need help with this science questions. Thank You! 2. One of the reasons E=mc^2 is important to us is because it explains how our sun produces huge amounts of energy through nuclear fusion of hydrogen atoms. Use this example to describe the relationship between the ...
Wednesday, March 25, 2009 at 5:52pm by Amy
I have to da a 10 page paper on Integration of health and physical education in curriculum. I need help finding 10 journal articles that are peer-reviewed, current trends and political background. Help please???
Wednesday, February 12, 2014 at 11:12pm by LaTarial Williams
the need for gaps in railway lines
Sunday, February 10, 2013 at 12:58pm by boitumelo lipheko
in physical science how do you graph a number from 0 to .600
Wednesday, September 7, 2011 at 2:32am by Anonymous
i need to draw an example of a combined pulley
Friday, March 26, 2010 at 4:07pm by carrie smith
maths, physical science , life science , geography
Hi I am in grade 10 , I am doing maths physical science, life science and geography, what jobs can I get into with those subjects
Sunday, January 19, 2014 at 12:45pm by zaakiyah
What mass of NaCl do you need to make 71g of Cl2?
Sunday, November 15, 2009 at 10:17pm by savannah
The physical properties of ice are different from the physical properties of dry ice (frozen carbon dioxide). But the physical properties of gaseous water vapor and the physical properties of gaseous carbon dioxide are the same. Why? A.) The valence electrons are more tightly ...
Monday, October 17, 2011 at 10:26am by Anonymous
If mecury is 13.54 g/cm3, and you need 40 gm of mercury. What volume of mercury do you need?
Friday, December 7, 2007 at 12:28am by TASHA
physical fitness or sports
Name 10 career options in the fields of physial fitness or sport. I have come of with these: -physical trainer -player -coach -refree I need help. Can someone help me to come up with the other 6. And also please check if I am corect. Thanks for help!!!
Monday, January 19, 2009 at 6:52pm by jess
Most abundant halogen. I need a word eight letters long.
Tuesday, June 24, 2008 at 12:19am by Tony Leal
what is the answer to 3.45 km= ______cm? please
Wednesday, September 10, 2008 at 9:08pm by wendy
An area in your state has been flooded due to heavy rains. How might scientists from the three main branches of science interact in their study of the flood, its effects, and how future flooding might be controlled? OK, I will bite: What do you think the three main branches of...
Sunday, September 17, 2006 at 7:08pm by alexa
language arts -
Need to confirm if the verbs in the sentences are physical or mental actions: 1. Other Americans in the Olympics challenged their opponents, too. --physics 2. Wilma dazzled the crowds in the track & field competition. --physical 3. Al Oerter, an American discus thrower, ...
Monday, March 17, 2014 at 8:25pm by cee
What physical quantities are governed by the quantum numbers of an atomic electron?.
Friday, March 22, 2013 at 11:05pm by Dee
Please help.How can the IMA of a screwdriver be increased?
Tuesday, October 20, 2009 at 2:52pm by zack
Need to know how to measure mass on a balance ruler printed on worksheet. It's getting late... HELP :(
Monday, October 1, 2007 at 9:38pm by Meg
A sample of copper can be drawn into thin wire. Is this chemical or physical property?
Tuesday, September 9, 2008 at 3:16am by Mari
What happens when a candle is alight (on one side we had to show physical change and on other side the chemical change). The question sheet says 'Explained both changes using the Big Idea of Energy.' The physical changes are what you can see, and what you can measure. Include ...
Saturday, October 21, 2006 at 10:00am by liverpool
i need to solve this : 1. we should show the chemical structure of oligosaccharide which contains 2 galactoses and 1 saccharose. 2. compare the difference in physical features og dicarboxylic acids and glucose beta chain 3. determine the calorific value of 5g saccharose please...
Tuesday, March 29, 2011 at 4:19pm by nina
Introductory physical science
We needed to find the sensitivity of our equal arm balance and the question I need help with is....What are 2 reasons why you need to know the sensitivity of your balance?
Thursday, October 14, 2010 at 7:58pm by Erin
Physical Science 9
when an electric current is passed through water 2 gasses are formed is this a chemical or physical change
Sunday, March 16, 2014 at 3:44pm by Steve
Two 2.2 kg physical science textbooks on a bookshelf are 0.15 m apart. What is the magnitude of the gravitational attraction between the books?
Thursday, February 14, 2013 at 1:14pm by Brandy
The entire physical universe is called__________?
Wednesday, August 27, 2008 at 3:09pm by Mickey
Drwls, would please explain more? I'm not getting this. Thanks
Friday, November 2, 2007 at 10:13pm by Sarah
please could you help me to draw the structural formula of C_5 H_12
Wednesday, June 16, 2010 at 7:54am by bindiya farswani
suppose one of your test tubes ha a capacity of 23 mL. you need to use about 5 mL. of a liquid. describe how you could estimate 5 mL
Wednesday, September 8, 2010 at 8:51pm by CAMILA
You learned that a tree can be cut down and shaped into a bat.This is a physical change.What are some of the physical changes we find in nature?
Monday, May 2, 2011 at 7:04pm by Frances
please help me i am looking for word problems involving potential and kinetic energy i need for my homework in science PLEASE HELP!
Wednesday, December 9, 2009 at 5:07am by iya
I need help on how to set up a formula for 27c and 750 mm hg,a sample of hydrogen occupies 5.00 l how much space will it occupy at stp
Tuesday, October 2, 2012 at 5:29pm by Glenda
I studied this 2 years ago in college and am no back in school. I can't remember any of this stuff and I really need to figure it out. Please Help Me!! The Latent Heat of Vaporization for water is 540. cal/g. How much heat (in calories) must be added to 10.0 g of water at ...
Tuesday, February 5, 2013 at 10:05pm by Jessica
I need a little assistance. Can you help? The question which seems to be simple enough is What is a physical change? My son answered - A physical change is any change that alters the form or appearance of matter into a different substance. I do not agree. He is missing ...
Monday, September 17, 2012 at 10:57pm by From a Mom
Drug Abuse (URGENT)
What are some non physical effects of marijuana use? I've found lots of physical but I can't seem to find any non physical effects. Can someone help me please. Thanks very much.
Monday, October 12, 2009 at 7:19pm by John
I NEED HELP!!! this is urgent!!! Human-Environmental Interactions: how did the people in Khartoum modify the environment? how is the people in khartoum being influence by the physical landscape/environment? sorry my grammar sucks i have other questions but i really extremely ...
Thursday, November 18, 2010 at 7:50pm by NEED HELP URGENT!!!
Science. plz help!!
What is the physical and chemical characteristics of the element neon? p.s- a really need help i'm not joking. oh yeah and thank you for your time! I think I answered this last night but it may not have been your question. Anyway, go to www.webelements.com and click on element...
Monday, November 13, 2006 at 8:13pm by Vicky
Can anyone please answer my science question???? PLEASE!! if nobody on here is answering, try doing a little research on other websites i need some help on my homework
Thursday, February 22, 2007 at 10:07pm by jk1115
Mathematics, physical, science agricultural science, life science english
What it means to be a grade 12 learner?
Friday, February 18, 2011 at 8:36am by Anonymous
good day! can you please give me the wave explanation for colors? i need it for my report tomorrow. i need an immediate answer please!
Sunday, July 4, 2010 at 5:11am by Kareen
PLEASE HELP I NEED A GOOD SCIENCE FAIR PROJECT. PLEASE HELP THANK YOU JUSTIN
Wednesday, November 28, 2012 at 5:29pm by justin
i have 25 examination quesions i need answered. can you help me? We can help you with some of them if you post them individually and show your own work or thoughts. We don't do exams for you here.
Friday, March 9, 2007 at 10:33am by cynthia
I need some help. I have tried working this problem and can't get it. What is the mass of the Sun, in kilograms, based on the revolution period and distance from Venus?
Sunday, April 8, 2012 at 2:27am by mel
language arts -
Need to confirm if the verbs in the sentences are physical or mental actions: 1..Owens strong performance angered Adolf Hitler - Physical
Monday, March 17, 2014 at 8:37pm by cee
Physical science a 2.0g metal ball that carries a charge of 10 uC is placed into an electric field. the ball at rest at point A is accelerated to point B with a speed of 1.0 m/s. what is the electric potential difference between point A and point B?
Sunday, November 25, 2012 at 8:17pm by ann
Science ~CHECK MY WORK PLEASE~
Both carbon dioxide and water are pure substances. How are they similar to each other? A.) both substances have a set ratio of atoms that cannot be separated by physical means. B.) both substances have a set ratio of atoms that can be separated by physical means. C.) both ...
Tuesday, January 28, 2014 at 3:21pm by Wendy
What are two chemical and two physical properties of water? Please help me. Thank you. physical properties: boiling point, freezing point,density, color, electrical conductivity chemical properties: reactivity with sodium. Reactivity and decomposition with electrictiy.
Sunday, June 10, 2007 at 11:30pm by Jj
22. Why does a heat pump need an external source of energy (such as electrical energy)?
Saturday, March 8, 2014 at 2:37pm by Alex
Im not sure about the answer i need u to help me get the answer
Saturday, September 3, 2011 at 10:02am by Anonymous
See i took this practice test and i got a lot wrong i need help its on nature of matter and i need help so my mom can get of my back help me please I'm desperate for help please i beg
Monday, January 25, 2010 at 7:49pm by Brianna
How does the study of heat relate to the kinetic theory of matter? (Answer in a simplified terms please)
Tuesday, April 27, 2010 at 2:18pm by Sue
Water boils at _______ 01 Kelvin. I put 373.15 but I dont know if it is right. Could someone please help me?
Monday, December 12, 2011 at 10:31am by Brooke
Physical Science Help!
Can someone please help me balance these equations? Thank you for your time!! 1. NO + O2 Ā® NO2 2. NH4Cl + Ca(OH)2 Ā® CaCl2 + NH3 + H2O
Monday, February 11, 2013 at 5:51pm by Ella
X-rays can take pictures of your bones but visible light cannot. Explain why. Homework question, please and thank you!
Thursday, March 13, 2014 at 11:52am by Adam
What physical law states: When an object nears a massive celestial object in space, it is attracted to its gravity
Friday, December 31, 2010 at 11:23pm by anonymous
HELP WITH THESE PLEASE! If you ride your bike at an average speed of 4km/h and nee to travel a total distance of 28 km, how long will it take you to reach your destination? A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg ...
Wednesday, August 7, 2013 at 7:31pm by Audriana
Changes in Matter
Which of the following are examples of a physical change? a)change in physical state b)change in size or shape c)change in properties d)change in texture e)change in physical quantities f)change in substances Answer: a, b, and d Please correct me if I'm wrong, thanks
Monday, March 22, 2010 at 7:28pm by Sara
plz i need help If the density of ice is 0.92 g/cm^3, what percent of an ice cubeís (or icebergís) mass is above water.
Wednesday, April 15, 2009 at 8:49pm by Albert Kim
I need help answering a few questions? What is intertia? How is it involved in the first law of motion? Two children who are fighting over a toy pull on it from opposite sides. The result is a stand off. Explain this in terms of the net force. These questions are for my study ...
Monday, March 2, 2009 at 8:50pm by sfsfsfs
Is distillation a chemical or physical change? My answer is a physical change. Is this Correct? My Mom wrote to ask you guys to check her checking my answers. Who is right?
Monday, September 17, 2012 at 11:11pm by Reed
I'm having a lot of trouble writing my lab report it's on Density of common Solids and I'm so confused. PLEASE HELP!
Sunday, September 28, 2008 at 2:03pm by alexandra
17. Why can't carbon-14 be used to determine the age of fossils that are several hundred thousand years old? Please and thank you!
Tuesday, November 12, 2013 at 7:56pm by CJ
Is melting ice a physical or chemical change? I think it is a physical change. Am I correct?
Thursday, December 8, 2011 at 1:08pm by Bob
Need help on this one as well: How can you predict whether an object will float or sink in a fluid if you don't know the force of its weight or the buoyant force? Thanks! -MC
Saturday, March 28, 2009 at 12:21pm by mysterychicken
I have 2 questions that I need help with please. 1.What are the three parts of the law of conservation of mass/matter? Do not need the definition but the 3 laws please. 2. How are velocity, speed, and acceleration related? I know how they are different only. Thank you
Thursday, November 29, 2012 at 8:06pm by QUICK PLEASE HELP
I need help answering these two questions, can someone please help? 1.How does energy transfer by waves differ from energy transer my moving objects? 2.Define amplitude and frequency as they relate to a wave. [I know amplitude is the height of a wave and frequency is how many ...
Monday, May 4, 2009 at 7:24pm by mysterychicken
Physical Science- Balance Equations
Hi! Can someone please balance these equations, please?! I'm having major trouble! Thank you! HCl (aq) + NaHCO3 (aq) Ā® HBr (aq) + NH3 (aq) Ā® LiHCO3 (aq) + HI (aq) Ā®
Monday, February 18, 2013 at 7:10pm by Hallie
This is a question to everybody: I was just wondering if anyone had any science related questions or things they wonder about that may require experiments. If you have any ideas please mention them. I need this for a science for a science fair project and have at most a 6 ...
Thursday, September 6, 2012 at 7:46pm by Samantha
Help me please! I need help with Floating Point Notation when converting biary and regular numbers! Please. I just need some help and would appreciate it greatly. Also instant message me at TRbal10. Thank you
Sunday, October 14, 2007 at 3:51pm by Tiler
If we changed our speed limit to metric, what would probably replace 10.mi/h? (please round to th enearest 1km/h.)
Thursday, January 13, 2011 at 12:04pm by Tori
My science post is almost at the bottom and I need it to be checked urgently. I see science helpers on this site as of right now.--Can you please have a moment to look at my Science post. Thank you very much in advance:-)
Tuesday, April 6, 2010 at 8:33pm by Sara
Geography nd physical
Can i tyk geography nd physical science if i wnt 2 become a pathologist
Tuesday, December 3, 2013 at 7:10am by Thando
Objects accelerated to relativistic speeds....live shorter or grow bigger? Please note that we don't do students' homework for them. Once YOU have attempted to come up with a response to YOUR questions, please re-post and let us know what you think. Then someone here will be ...
Thursday, March 29, 2007 at 10:03pm by Gina
An area in your state has been flooded due to heavy rains. How might scientists from the three main branches of science interact in their study of the flood, its effects, and how future flooding might be controlled? Life science, Earth science, and physical scicence.
Saturday, August 21, 2010 at 8:57pm by Jenny
please help me i am in 4th grade and i need help on my science project. my science project is, is smiling contagious and i have no idea what to do for research and data
Sunday, November 25, 2012 at 7:59pm by kaylee
Can no one help me? I posted a question earlier I don't need answer I need to understand what I did wrong my thinking is that if I have a 2:1 ratio And my total is 99 that if I divide by 3 then I can get the amounts 33x2 is 66, then 33x1 is 33 so it would be 66:33. I used this...
Thursday, October 18, 2012 at 6:52pm by Maria
20. Why is ethanol added to gasoline? Can't find this answer in my book, and I've gone back and checked for it like three times. Please and thank you!
Friday, October 25, 2013 at 7:21pm by CJ
13. Why can convex mirrors only produce virtual images? Sadly, I can't find this answer in my book. :( Any help would be appreciated, please and thank you!
Sunday, April 6, 2014 at 6:27pm by Alex
I need help with 2 questions please. 1.What are the three parts of the law of conservation of mass/matter? Do not need the definition but the 3 laws please. Wikipedia and other sites just gives me the definition of the law of conversation. 2. How are velocity, speed, and ...
Thursday, November 29, 2012 at 8:45pm by Please Please Help
English - ms. sue
for book water for elephants i need help with character personalities and physical description for rosemary i hve that she be kind, respectful and understanding but it not give physical description of her
Monday, May 7, 2012 at 10:34pm by Mohammad
This question is about a lab called Heats of Ionic Reaction in my Physical Chemistry class. I need to know why there should be a large percentage error in deltaH4
Monday, March 4, 2013 at 8:16pm by shelby
I need to do a project for the science fair but I don't know what to do. My science teacher says it has to be like the water dancing on a penny, everything has to be the same but you have to change one thing. What can I do?????? HELP ME PLEASE :/
Tuesday, October 9, 2012 at 7:08pm by Molisa