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September 3, 2014

Search: Science 7R (Lab questions)

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Science 7R (Lab questions)
We did a lab today at science and for homework we have to answer questions about the Lab. I need help on 2. 12. Name two ways that a plant and animal cells differ in structure? 13. How are plant and animal cells different in function? She said that we have t write it in ...
December 1, 2011 by Laruen

Chem Lab Help
I wanted to know if any one has done the Determination of ASA Content of Tablets Lab Report. I need help doing the post lab questions
December 4, 2012 by Latica

Biology
I really need help with my science lab. I was sick when we did the lab on Thursday and Friday was a snowday so I did not get to get the observations off my peers. My teacher has allowed people one more day and I do not understand this Lab at all. If someone could help me write...
March 5, 2007 by Scott

Integrated Science.
Hello there experts!Can you help me out with some of my questions?Thank you. My first question is. 1.)List 3 warning symbols in my home...please! 2.)What are some precautious i should take in a lab? and or Give 3 reasons why keen attention is being paid in a lab room? Please ...
September 11, 2007 by Roseana.

Science 7R: Lab Questions (plz help)
I really need help. 12. What are the three main parts of an animal cell? 14. If all of our surfacecells were colorless, where do you think our skin color is located? My science teacher is collecting it tommrrow and grading it. Please Help!!! Thank You!!! :)
December 5, 2011 by Laruen

chemistry
I did a lab on pressure and depth today. This lab was to simply submerge a plastic tube into a large graduated cynlinder to find the relationship between the two. I found that as the depth increases, so does the pressure. One of the questions I'm stuck on for part of my lab ...
January 11, 2010 by CL

science
Has anyone written up a Lab for the Sponge Capsule lab? I am trying to do a graph
September 9, 2012 by Gen

decision science
The university computer lab has 10 computers which are constantly being used by students. Users need help from the one lab assistant fairly often. Students ask for help at a Poisson rate of an average of 4 requests per hour for any one computer. the assistant answers questions...
May 2, 2012 by sharon

Algebra 2
In a quiz program, 3 questions on sprots, 3 questions on general knowledge, and 4 questions on science are printed separately on 10 cards and placed upside down. John is asked to select 2 cards at random. What is the probability of Joohn selecting 2 questions on science?
January 29, 2012 by Dena

Chemistry: Bunsen Burner Lab
Hi! I have recently completed a bunsen burner lab and need help with a few conclusion questions: 1) What kind(s) of energy is released by the reaction of fuel and air in this system? 2) Which part of the Bunsen flame is hottest? How do you know? ->I researched it and know ...
February 6, 2012 by Cicilia

Science
For science class, we had to do a lab that involved parachuting eggs off a third floor window of our school. This lab would help us learn the forces of gravity, friction, and air resistence. We were supposed to construct a parachute that would make our egg land safely. After ...
January 23, 2011 by Danielle

Science
1. What is the question that this study aimed to answer? State the hypothesis that you tested. I completed the lab but I dont understand what it is that I am testing. The lab had me test fragmentation at 0,25,50 and 75%.Included Spiny Grass, Blue bunch wheat flower, deer elk, ...
October 7, 2011 by Tameika

Science
1. What is the question that this study aimed to answer? State the hypothesis that you tested. I completed the lab but I dont understand what it is that I am testing. The lab had me test fragmentation at 0,25,50 and 75%.Included Spiny Grass, Blue bunch wheat flower, deer elk...
October 10, 2011 by Tameika

Chemistry
I'm doing some post lab questions and I'm stuck on one. In lab we performed Tollens test, Fehlings test, and Jones Oxidation to differentiate our unknown between an aldehyde or a ketone. The question I'm stuck on is " older bottles of benzaldehyde are often contaminated with ...
July 16, 2013 by hayley

Science
Plants, cows and humans use the same amino acids to make up their proteins and yet the proteins are very different. Why?? Could a plant make a human protein if we could splice a human protein gene into the plant's genome? Why? ----Those questions are from a lab we did, i got ...
February 11, 2010 by Emily

chem 121
We did a lab separating out the components of a mixture. One of the lab questions is "The weight of naphthalene was obtained by weighing the collected solid. Was this an accurate weight of the naphthalene present in the original sample?" I don't know how to answer this.
October 17, 2010 by Martha

Biology
I had a Bio lab about gel electrophoresis and PCR. for each lab, we have to make up thoughtful, detailed questions. You don't have to answer the questions so please don't go through the trouble by answering them. The first question is about something we did in lab. My question...
December 1, 2009 by Anonymous

algebra
My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match people up. During ...
November 1, 2011 by Linda

Chemistry
Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a solubility curve for ...
February 18, 2013 by Lori

Chemistry
Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a solubility curve for ...
February 18, 2013 by Lori

Science 8R - Volume Lab
I doing this lab for my science class about volume. In class today I collected my data. I measure the regular solid (LxWxH) and as for the irregular solid I use water displacement by putting the irregular solid (that is small) in the graduated cylinder full of water and you ...
October 9, 2012 by Laruen

SCI LAB
In my science lab we tested anaerobic vs aerobic respiration. for the anaerobic we covered the test tubes with a plastic film. what is the term for that?
March 9, 2008 by Quick question

integrated science
I have two questions for you experts out there.. 1.)List and draw six warning symbols found in your home. and 2.)Give three reasons why special attention must be pay to rules in a lab. Thank you so much for your help experts.
September 11, 2007 by kavita

PLeASE Help
Can someone please take a look at my biology questions I have posted? I am doing a lab that is due tomorrow ( Only got it today) and I haven't learned enough to properly answer these questions. Thanks!
February 25, 2008 by Grade 12 Biology

Chemistry
Sorry to post again but I'm really stuck on this one! I'm doing some post lab questions and I'm stuck on one. In lab we performed Tollens test, Fehlings test, and Jones Oxidation to differentiate our unknown between an aldehyde or a ketone. The question I'm stuck on is " older...
July 16, 2013 by hayley

Science/Lab
Can anyone tell me what happens when you do the diffusion lab? It is the one where you take food coloring and drop it into hot, cold and room temperature water and tell the differences.I need all the info.... please help.
April 2, 2008 by Molly

Microbiology
How can lab practices and safety precautions help reduce hazards in a lab setting? How do you handle blood cultures and pathogenic strains in a lab to minimize contamination?
May 3, 2013 by Sara

Math
To determine a GPA: 2(credit( Hr. Art, 3Hr. History, 4 Hr. Science 3 Hr. Math, & 1 Hr. Science lab. The scores were B in Art, A in History, C in Science, B in Math, A in Science Lab. What was the GPA based on 4 point scale? I continue to get 3.2 but that answer is incorrect, ...
March 5, 2007 by Betty

FACS - Reading Assignment Help!
I have this reading assignment for Family and Consumer Science. She gave us this packet for notes and to read to answer questions she gave us (that's our reading assignment which she is grading). So we answer the questions and to find the answers we look in the packet (the ...
April 22, 2012 by Laruen

Chemistry
I did a lab in which I added ionic solutions to tap and distilled water and another ionic solution. Distilled water is the control because it does not react to any solutions since it doesn't contain ions. But one of the lab questions I need to answer is: These tests cannot ...
November 16, 2008 by Fred

Chemistry
Can someone please help me on this two Chemistry questions...they are from my lab....the lab was on Acids and Bases using Red Cabbage Indicator. Q1- How consistent was the cabbage juice indicator for this lab? Discuss the limitations of using red cabbage juice as an indicator ...
October 12, 2009 by Jessie

Chem
I am doing a lab on enthaply of vaporization of water, I got everything else on the post lab but these two questions, please help. The deltaHvap data from the handbook reference vary with temp. 1) if your data were perfect, but deltaHvap is not constant, how would this show up...
February 13, 2013 by Please please helppppp!!!!!

chemistry 12 lab
We did a lab on equilibrium and this is one of the following questions: When Ag ions are added to FeSCN ions (which are red in colour), the colour disappears, and a white precipitate of AgSCN forms. The question is.. Explain why Fe can be used as an indicator in a reaction to ...
November 5, 2010 by cel

Science Olympiad
I don't know if you can help me but i am in science olympiad and i dont now what to bring for the second part of physical science lab. I already tried going on their website so that did not help.
November 17, 2009 by Anonymous

Lab in general
I just read my syllabus for lab and I am kind of shocked at what it says. I do know that I have to write out procedures of the lab in my nbk before coming to lab but I just read that it says "You will NOT be allowed to refer to you textbook/handout during the lab period" Is ...
September 3, 2007 by ~christina~

Drbob222
Can you please help me with some questions I have on my Chemistry lab?
November 27, 2010 by Mandy

child care
I have a questions please 1.An inappropriate science activity for a toddler would be:A:reporting the weather B:caring for pets of the facility C:planting a flower D:watching a science show on TV(I answered B) Thank you for answering my questions
February 10, 2010 by Barb

ENGLISH
Hello, what is the format of "affiliation" in a lab report? A lab report? Are you sure this isn't a science assignment?? http://www.google.com/search?hl=en&q=affiliation+lab+report&btnG=Google+Search ??
December 5, 2006 by Kate

AP BIOLOGY LAB
I am doing an ap biology lab on plant photosynthesis. It's specifically lab # 4 on plant pigments and photosynthesis and it's on question # 8 on Exercise 4B: Photosynthesis/ The Light Reaction. Identify the function of each of the cuvettes. I already have gone to the lab bench...
November 2, 2008 by Roger

Science
Hi any info on water purification that can be done in the science lab would be real helpful... thanks a heap Minnie
July 31, 2008 by Minerva Wisdom

Chemistry
I am doing a lab on enthaply of vaporization of water, I got everything else on the post lab but these two questions, please help. The deltaHvap data from the handbook reference vary with temp. 1) if your data were perfect, but deltaHvap is not constant, how would this show up...
February 13, 2013 by Kim

lab questions (chemistry)
why must not the condensed water drip into the flask?
March 27, 2011 by felaa

Science
Identify commonly used lab equipment. (beaker, graduated cylinder, triple beam balance, test tube, Patri dish) I really dont need answer. Does this means I have to write definations for each lab equipment???? I really need help.
November 6, 2011 by Laruen

Chemistry Lab
So I did a kinetics lab on the rate of reaction of peroxydisulfate ion with iodide ion. Part 1 was the effect of concentration. One of the questions asked is to calculate the amount of thiosulfate consumed in moles. My results for trial 1 were (Times taken for consumption of 1...
February 2, 2014 by Anonymous

Science
Hi, I have two questions about biology I need help with. 1) Some questions fall outside the realm of science, which of the following questions could not be answered using the scientific method? A)What is the function of the appendix in human beings? B) Why is it unethical to ...
September 17, 2011 by Jon

Science
We made t-pentyl Chloride in Lab today using HCl and t-pentyl alcohol. I know t-pentyl chloride is not soluble in water, but I'm still not sure the answer to some of my post lab questions. I've answered a few, but I have 3 that still confuse me. We performed a water extraction...
October 12, 2011 by Louis

chemistry
So i had trouble finding the answers to these questions on a lab: Background: If we were using a burret/flask instead of a pipette and well plates. Before you started, the buret must be rinsed with 1 ml of distilled water and then 1 ml of NaOH solution. The flask would also be...
October 1, 2009 by Jenny

Chemistry
So i had trouble finding the answers to these questions on a lab: Background: If we were using a burret/flask instead of a pipette and well plates. Before you started, the buret must be rinsed with 1 ml of distilled water and then 1 ml of NaOH solution. The flask would also be...
October 1, 2009 by PPLLEEAASE Help!!!!

Biology Lab gr 12
hi, i did this lab, from this website and I was wondering if anyone could come up with 3 sources of error, and they can't be human error. Thanks! You are saving me! Seeing as I am not allowed to post to the website :(, search on google liver lab with sand, and it is with a ...
February 26, 2008 by INSANELY URGENT

Physics Lab
I'm doing a lab on centripetal force but I'm not sure how to make the graphs. If you search for "centripetal force lab" on Google and click "I'm Feeling Lucky" it will take you to the exact lab I'm doing. I'm supposed to graph Fc vs. Vt, Fc vs. Vt^2, and Fc vs. e^Vt, but I don...
December 18, 2008 by Bob

math
the biology class has a lab every days. the earth science class has a lab every three days . which class day do they both have class ?
October 22, 2013 by mike

physics
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at V=0.960c? b) How far does it travel in the lab during that time? c) What is the distance travelled in the lab frame according to an observer moving with this particle.
March 10, 2011 by libby

physics
A proper lifetime of a certain particle is 100.0ns. a) How long does it live in the lab frame if it moves at V=0.960c? b) How far does it travel in the lab during that time? c) What is the distance travelled in the lab frame according to an observer moving with this particle.
March 10, 2011 by libby

Science
I am trying to find an example of how to write a prediction for a Biology Lab Report. I think a prediction should be written as an if/when statement. Does anyone know of some where that I can find a lab report that includes a prediction(s)? All of the website show predictions...
April 1, 2008 by Lori

Science (Lab)
So I have yo do a Lab for science (this is our very first lab, well we did a second one) & I really need help. This ia fictional lab experiment not a real one we are not really doing the experiment. Me 7 my group was doing it together we just have to do our own procedures (we ...
October 8, 2011 by Laruen

Science 7R - Worksheet (Q5)
********* Sorry I post too much question but these are the questions I'm having trouble with, the other questions on my science worksheet i done it by myself This is the last one I need help with and that's it E. How is the structure of a bone related to its function? Use one ...
April 22, 2012 by Laruen

Science
I need help with this chemistry flame test lab discussion question. "List the metals used in this lab in increasing order of the energy of the light emitted." We tested BaCl2, CaCl2, CuCl2, FE(NO3)3, KCl, LiCl, NaCl, & Sr(No3)2. I'm not completely sure how to know the energy ...
November 3, 2013 by Elva

Chemistry
We did a lab for acid-base titrations, and I'm having trouble with my post lab questions because I had trouble with acid-base reactions and titrations in the first place! "Calculate the molar amounts of NaOH used in the reaction with the HCl solution and with the HC2H3O2. I ...
April 21, 2007 by Rachel

Ms. Sue Help me, please
Hello, I was wondering if it was possible for you to assist me in having a science/biology teacher answer my question. It is called 12 Biology and I reposted as Biology Lab Banana DNA. My reason for this is that so many questions keep popping in, all in a row**, and mine is ...
April 1, 2008 by LC

Math
Homework grades are 5% of the overall grade. Lab work is 15% of the overall grade. Tests are 60% of the overall grade. The Final is 20% of the overall grade. Could a student that has a 75 homework average, 80 lab average, 40 test average, and 50 on the final pass the course? ...
September 19, 2006 by Veronica

math/science
Since the SI unit for temperature is Kelvin, why is the Celsius scale most often used in the science labs? I don't know that it IS the most often used. For example, almost all of the calculations require changing from C to K (gas law problems, and almost all others EXCEPT ...
August 15, 2006 by carter

com 200
Kyle has struggled to feel comfortable in science classes with labs since his junior year of high school, when a solution he was working with ignited. He was always cautious with chemicals but his lab partner that year enjoyed seeing what would happen when he mixed random ...
July 25, 2012 by susie

science
how we can do a lab reporte
December 14, 2009 by jean.b

Chemistry
Why wouldn't you do this reaction directly in a lab (and would rather use Hess' Law to determine the enthalpy of formation)?: 1/2N2(g) + 2H2(g)+ 1/2Cl2(g) -> NH4Cl(s) I don't think the reactants are that dangerous...? It's still pretty safe to do in a lab, isn't it? Are ...
February 18, 2013 by a Canadian

science
What type of organism makes restriction enzymes? How did restriction enzymes evolve? How do scientists use restriction enzymes? If you digest an entire human genome with a restriction enzyme you get a blurry smear in the lane of the gel. Why? I have a quiz tomorrow on ...
March 1, 2010 by Emily

7th grade science
Sorry! this is alot of questions. Science is not my best subject but i still do well in it but the questions are really hard for me pleas help answer this. What might you ask yourself in drawing a conclusion about an experiment? Why is scientific inquiry a process with many ...
August 31, 2011 by saranghae12

Chem Urgent Help ?
I have a lab dis monday .. plz someone help .. Lab Title is (( Recrystallization of a Solid )) Pre-Lab Questions.... Explain the purpose of the following in this experiment. a) using hot filtration b) not cooling (chilling) the hot filtered solution immediately c) washing the ...
November 22, 2008 by Juliana

Science-URGENT please
Does anyone have any suggestions for a lab that would test the effects of exercise on human physiology? I thought of a lab involving running and heart rate, but my other classmates came up with a similar idea and i would prefer to do something different. is there any way of ...
March 9, 2008 by John

Chemistry
I'm in 10th grade and we did a titration lab; with every lab we have to answer follow up questions and I'm totally stuck on this one: We did not uses the volume of the water added initially to the Erlenmeyer flask in our calculations. Why? Ok as far as calculations go, I'm not...
May 9, 2012 by Sarah Hejnosz

Biology
Some questions fall outside of the realm of science;which of the following questions could not be ansewered usingf the scientifec method
February 24, 2012 by Anonymous

Help Please - Science
I'm stuck on this thing in science. It's a lab report so its kinda hard to explain. We did a topographic map experiment. We had a big rock, and put it in a plastic bin. We then marked centimeters on the bin and filled water to the first centimeter. We drew the water line on an...
November 13, 2007 by Alex

Chemistry - titration lab
Hello. For my chemistry of solutions class, we had a titration lab where we titrated NaOH into an HCl + H2O mix. This was a preparatory titration for the next one consisting of the hydrolysis of ethyl acetate into acetic acid with H+ ions as a catalyst (in our case the HCl). ...
July 31, 2012 by Robertq

science lab
What is the location of this piece of equipment
August 11, 2008 by Leo

science
What are attributes of lab safety rules
August 28, 2011 by lilo

Physics
what can be the source of error in lab of forces equilibrium,force board lab?
September 26, 2013 by Riana

Physics
what can be the source of error in lab of forces equilibrium,force board lab?
September 26, 2013 by Riana

phsyics
hi, has anyone done the lab on 1.2 lab : constant velocity? it's about ticker tape. thanks
March 11, 2009 by ashley

Biology Lab
What tense do you use when writing a discussion in a formal lab?
October 30, 2009 by Moi

Lab
When doing a virtual lab everything is exact, but why would they still ask for absolute and relative errors?
June 21, 2011 by Diana

science
help with the chem lab. the molecular of a volatile liquid.
November 29, 2007 by Bmt

physical science
we did a lab on how to separte solids and i cant remember how to do it, does anyone know what to do???
January 3, 2008 by bob

science
what substance do you use to grow a virus in a lab
February 7, 2009 by Kate

Physical science
Anyone working on Sound Investigation lab
April 18, 2012 by lilman

Grade 12 chemistry
For a chem lab, i was given a table that results when pairs of chemical solutions are mixed.For each set of compounds that formed a precipitate, I had to determine the precipitate. I have done that and now one of the questions i have to answer based on the lab: Based on your ...
December 31, 2011 by Teneal

PLEASE
ANYONE PLEASE REPLY MY OTHER POST (SCIENCE 7R: LAB QUESTIONS) IS MY ANSWER IS CORRECT ON #13????? PLEASE!!!!!!!!!!!!!!!!!!!!! PLEASE!!!!!!!! - Laruen , Thursday, December 1, 2011 at 6:33pm Chloroplast are used for food making (photosynthesis). That is only found in a plant ...
December 1, 2011 by Laruen

Physics
I just did a lab on potential difference/voltage, resistance, and current. What would be good title for my lab? Thank You.
April 8, 2008 by Tom

physics
I did a lab on the potential difference and how it relates to the number of batteries connected. What would be a good title for my lab?
April 15, 2008 by Tom

science. . . =[[
crossword puzzle 1) Secure loose___________ before beginning lab. (its 7 letters) 2) If a chemical comes into contact with your eyes,wash them out for atleast __________ minutes (its 7 letters) 3) Know where this is before you begin any lab;you may need to find it in case of ...
August 29, 2007 by toriiii

Science
For science I have to create a safety poster about one safety rule. Are these ones good: *clean up after your mess. *Don't eat or drink in the science lab. *Wash your hands after experiments. *Never reach across a flame. *Listen to directions. More rules would be appreciated, ...
February 2, 2010 by Sara

chemistry
i need 3 types of suspensions found in a science lab
October 10, 2008 by becky

science
What is a possible hypothesis that could be tested in the Atomic Theory lab?
September 30, 2013 by bob

Honors Chemistry
We did a lab in class on Friday where we stuck a metal loop in various chemicals and stuck it in the flame of a Bunsen burner and we observed the flame's colors as the different metals went in. For every lab we do, we have to write a writeup which involves a graph. How could I...
September 20, 2009 by Emily

science
i am in 7th grade accelerated science, so i am learing 8th grade material. I am having some difficulties with covelant and ionic bonds. My lab is due tomorrow and i have a quiz on Wed. If anyone can help me understand this better i would be greatful. Thank-you.
January 4, 2010 by Michele

Science 8
IN science we are talking about chemical prefixes and compound names. For homework there are some questions where I have to "Name the Ionic Compounds" He talked about it but I am still confused, here is one of the questions. ht tp*:/ / img101.imageshack.us/my. php?image=...
December 17, 2008 by Micheal

Chemistry Titration Lab HELP!
Hi everyone! I just got a new lab that I MUST complete today, and it's about titration- I have absolutely no clue how to do it, it just doesn't make sense to me! I hope that someone can help explain to me how to do it so I can finish ASAP!! Thanks a lot, -Angel Lab--Titrations...
June 11, 2008 by Angel

science lab
does a plant need roots to have photsynthesis occur?
May 4, 2009 by Ashley

science
What can be inferred after performing the experiments in the Atomic Theory lab?
November 14, 2013 by fred

physics
soo for physics, we did a lab where we launched a cart on a track on the floor and recorded time, distance, etc. to figure out things. one of the questions on the lab is: can you think of a simple follow-up experiment that would allow you to determine how much the cart's ...
October 6, 2009 by student

science
i have a joke my science teacher asked my lab partner what is the density of water for are project it was 1.0 he said boiling it she said no then he said buring it she said no then he said throwing it of a rocet And I don't get it.
September 5, 2006 by krista

chemistry
i have to write lab report based on my determination of chemical formula & in lab we did experiment & found out the formula was cucl2*2h2o, in my lab report i have to start with mole to mole ratio how can i start writing that?
May 29, 2013 by Niki

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