Post a New Question | Current Questions | Chat With Live Tutors
Homework Help: Science: Scientists
Recent Homework Questions About Scientists
Post a New Question | Current Questions
chemistry
a scientist wants to make a solution of tribasic sodium phosphate ,Na3PO4, for an experiment. how many grams of Na3PO4 will be needed to produce 750 mL of a solution that has a concentration of Na+ ions of 1.30M
Physics
A synchronous satellite, which always remains above the same point on a planet's equator, is put in orbit around Neptune so that scientists can study a surface feature. Neptune rotates once every 16.1 h. Use the data of Table 13.2 to find the altitude of the satellite. Mas...
classroom instruction
Teachers do need to establish ground rules about discussion: students should learn to listen politely to each other, and to agree to differ on occasion. Teachers can model calm and polite behavior, without giving in to irrationality. It is important to make clear to children t...
arts high enviromental science
describe the four properties that scientist use to predict population size
Space Exploration
Space is our final frontier. Agree or disagree. Then explain I really don't know the answer to this. I don't think it is true, but then again, I'm not sure. Why I don't think it is true is because scientists are still making discoveries; they are still learning...
english
please explain : “Science gives an intellectual view of reality, and the arts try to make the emotions as precise and disciplined as sciences do the intellect. But of course it’s nonsense to think of the scientist as a cold, unemotional reasoner and the artist as som...
english
please explain : “Science gives an intellectual view of reality, and the arts try to make the emotions as precise and disciplined as sciences do the intellect. But of course it’s nonsense to think of the scientist as a cold, unemotional reasoner and the artist as som...
english
please explain : “Science gives an intellectual view of reality, and the arts try to make the emotions as precise and disciplined as sciences do the intellect. But of course it’s nonsense to think of the scientist as a cold, unemotional reasoner and the artist as som...
english
please explain : “Science gives an intellectual view of reality, and the arts try to make the emotions as precise and disciplined as sciences do the intellect. But of course it’s nonsense to think of the scientist as a cold, unemotional reasoner and the artist as som...
science
Are there any questions on earth that haven't been answered or are to compicated for scientists to get to or understand?
2nd grade
Why is it helpful for scientists to know how long animals can live?
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 electrop...
Environmental Science
Demography is the study of populations, but most often it refers to the study of human populations. Therefore, demographers are the scientists that study populations. There are four properties that scientists use to predict population sizes. These are age structure, survivorsh...
writing
Can you help me correct these sentences? 1.She wants to become an environmental scientist she is especially interested in marine life. 2.If she can get a scholarship she would like to spend her senior year in New Zealand. 3.The Great Coral Reef almost cicles New Zealand it has...
Biology
41. A group calling itself "Virus Alive!" believes that viruses are living organisms. They have petitioned the scientific community to include viruses in the biological classification system. You are a scientist assigned to explain to this group that, although they s...
Biology
41. A group calling itself "Virus Alive!" believes that viruses are living organisms. They have petitioned the scientific community to include viruses in the biological classification system. You are a scientist assigned to explain to this group that, although they s...
sciencew
Scientists know that water is nonliving because a) it gets energy from food b) it reproduces itself c) it responds to its environment d) it cannot make itself move Is d the answer?
science
Scientists know that water is nonliving because a) it gets energy from food b) it reproduces itself c) it responds to its environment d) it cannot make itself move I think letter c but I'm uncertain. Thanks
science
Question 1: Candance is trying to explain that a dog is a living thing, but a river is not. What is one difference that will help her show this? a)a river cannot make another river b)both the dog and the river can move c)a river can be made by people, but the dog can only be m...
Chemistry
Sally Scientist is trying to determine Avogadro's number using a procedure analogous to that in Experiment 4. She fills a watchglass with diameter 11.9 cm with water and is trying to create a monolayer of stearic acid on the top of the water. What is the area of the water ...
science
In 4th grade science, How could measuring the orbit of a comet help scientists understand when it will next be visible from Earth?
SCIENCE
how did the bicycle help other scientist discover or invent things
Biology
Why do some scientist think that areas protected from the atmosphere might have favored the production of organic compounds on early life?
Science/History
On my previous post at 3.22pm (& 3.29pm) pm I asked what famous scientists did Isaac Newton work with. Unfortnately no-one has answered and I have been unable to find a website that tells me. I have come across Edmund Halley name linked to Newton's would he be a scientist ...
com220
Need some feedback or a review of a rough draft essay and full sentence outline. It may appear that I am not referencing sources, but believe me I have full reference page with 7 sources to site thus far in. I just need someone to take a look at the layout and give me some sug...
science
I am doing a project on Isaac Newton and have to find info on born,died,study, famous scientists he worked with,apple and laws of motion. I have found all the answers except the famous scientists he worked with. I have been on lots of websites but I cannot find one which says ...
Environmental Science
are these correct? 29. A common feature of thermal pollution and artificial eutrophication is that they both a. ave sources that are idfficult to identify and control b. cause large mats of algae to bloom in fresh water c. are a result of power plants and other industrial acti...
algebra
What were the headlines after a mad scientist trained two eggs to attack a candy store with sharp sticks ?
Environmental Science
29. A common feature of thermal pollution and artificial eutrophication is that they both a. have sources that are difficult to identify and control b. cause large mats of algae to bloom in fresh water c. are a result of power plants and other industrial activity d. decrease t...
critical thinking
identify and classify the different fallacReprinted from "Animals Hold the Key to Saving Human Lives," Los Angeles Times, February 5, 1996, by permission of the author. Dr. Joseph E. Murray, a Nobel laureate, performed the first human kidney transplant in 1954. He is...
Comp150.
What kind of supporting paragraphs would go with the following topic?Scientist have discovered human remanis thought to be more then 2 million years older then Lucy Explain why
scientist
EXPLAIN WHAT HAPPENS TO A ROCK AFTER THEIR ELASTIC LIMIT IS PASSED.
science
how do scientists think the ocean was formed?
biology
Start by observing the living species around you. Ever wonder why a pollinator is attracted to a particular flower, or what would happen to predator species if a particular prey species is eliminated? If you were a scientist you could do an experiment to answer your question. ...
biology
how do scientists use radioactive dating to approximate a rock's age
SCIENCE helppp!!
Our sun is what scientists call a "yellow-green star." Does it emit energy in the frequency of red light? I have no idea!
Environmental science
here is another question that i couldn't decide an answer to: 2. Bacteria and fungi are important in the environment because a. some convert nitrogen to a form used by plants b. some return nutrients from the remains of organisms to the soil c. some break down the remains ...
science
what do scientists do when information becomes available inregards to current scientific understanding
Physics
I'm having trouble with this question. Some __ objects emit no visible light but are known through __ and radio images; satellite observations __ Earth's atmosphere help scientist study space at wavelengths that do not reach Earth's surface. If you can answer it, I...
science
Why didnt scientists before rorbert hooke develop the cell theory
history
what are some acheivements on islamic scientists,astronomers, geographers and mathematications?
enhaning self-esteem
Help please. 2)according to many social scientists,adolescence ends for most people? A.when the physcial and intellectual changes of puberty have occurred. B.by the time the person reaches age 20. C.when they're most comfortable with and have a clear understanding of who t...
enhancing children's self esteem
I need a little help.2.according to many social scientist,adolescence ends for most people. A.when the physical and intellectual changes of puberty have occurred B.by the time the person reaches age 20. C.when they're most comfortable with and have a clear understanding of...
science
HOW COULD MEASURING THE ORBIT OF A COMET HELP SCIENTISTS UNDERSTAND WHEN IT WILL NEXT BE VISIBLE FROM EARTH?
SCIENCE
HOW COULD MEASURING THE ORBIT OF A COMET HELP SCIENTISTS UNDERSTAND WHEN IT WILL NEXT BE VISIBLE FROM EARTH?
Science
With today's advanced technology, scientists are able to predict when an earthquake will occur. A)true B)false
Science
With today's advanced technology, scientists are able to predict when an earthquake will occur. A)true B)false
Science
With today's advanced technology, scientists are able to predict when an earthquake will occur A)true B)false
10th grade
What element, found in all plants and animals, is used by scientists to determine approximate dates for an artifact’s age?
science
show the steps a scientist would take to classify a newly discovered animal
Science
hello my exams are just going to start and i don`t have science book because it`s not available in shops so for standard 6 can you give me some information in these topics: 1. Interdependence and Adaption 2.Scientists in the book scientists` topics are Alhazen, Brunel and Albe...
science
scientists often use models to study the movement of earth and it's moon. Why do they use models to study the movements? please help pretty pretty please with cherry on top!
Science
scientists often use models to Study the movement of earth and it's moon. Why do they use models to study the movements?
science
why is it difficult for scientists to find the densities of extrasolar planets
science
What is the experimental tests that scientists do more than once so they can reduce the effects of chance error?
science
can you give me some facts and info bout how plate tectonics accounts for the features and processes that geoscientists observe in the earth -thank you
sat writing
With one of the most successful African American business in history, the Motown Record Corporation was founded in 1959in Detroit by Berry Gordy,Jr. A.With one B.It was one C.Being one D.One E.As one why can't i choose E? Assignment; does planning interfere creativity? Man...
9th grade
each question is 10 points each, and i dont get 4 questions. I am in Earth Science and in 9th grade i would appreciate it if some one would help me. THANKS ! Where have earthquakes occurred most frequently during the last one hundred years? 1) in the polar regions 2) in the in...
scientist
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in run...
sat
With one of the most successful African American business in history, the Motown Record Corporation was founded in 1959in Detroit by Berry Gordy,Jr. A.With one B.It was one C.Being one D.One E.As one why can't i choose E? Assignment; does planning interfere creativity? Man...
sat essay
assignment:should people always prefer new things, ideas, or values to those of the past? Should people always prefer new thing to the old? Many people argue that we should not accept the new easily and should sick to the old. As far as I am concerned, we must always try our b...
social studies
human resources includes the skills,talents and abilities which individuals possess.a variety of human resources exists in the Caribbean such as engineers,doctors,lawyers,teachers,scientists,farmers,authors,poets,artists,fisherman and sport personalities
science
Why would it be helpful for scientists to know how long animals live?
geography
I can't find any of the answers in the book, could you please help? 1. The landform occupying the center of the triangle that forms the indian subcontinent is the.. A Deccan Plateau B Western Ghats C Indo- Cangetic Plain D Eastern Ghats 2. Which account of an Azerbaijani d...
Repost- Biology
A scientist separates plant pigments from leaf, root, and stem samples by paper chromatography. All the leaf chromatographs include yellow green and blue green spots but none of the root and only a few of the stem chromatographs have these green spots. Many of the samples have...
Science
Respected teachers, I have got assignment that i have to write about 7 scientists i am in class 6 and we have to write 1 page for 1 scientist we have to write about their life style and what they invented and how they were great and i know names of some scientists .... Albert ...
Biology
A scientist separates plant pigments from leaf, root, and stem samples by paper chromatography. All the leaf chromatographs include yellow green and blue green spots but none of the root and only a few of the stem chromatographs have these green spots. Many of the samples have...
Enchancing Children's Self-Esteem
Please check to make sure my answers are correct. 1. It’s important to help children develop positive self-esteem because A. it will help them be more successful at their careers later in life. B. they’ll be more likely to question authority, when necessary. C. they&...
Writing I
Label each sentence below. Use S for simple, CD for compound, CX for complex, and CD-CX for compound-complex. 1. Do you know the theory of black holes? 2. Objects in space have gravitational pull, so smaller objects are attracted to larger object. 3. Throw a rock into the air,...
Literature
In reply to my past post-- On the third of December on the Cornish coast of England many years ago, the weather changed overnight from a mild autumn to a cold, harsh winter. Nat Hocken, a worker at a farm noticed that the birds appear more restless than usual and told his wife...
Literature
'Du Maurier, who wrote the short story The Birds, tells us that the birds are trying to destroy human life, but we never know what is making them do it. Is it really the weather, as some characters in the story think? Is it an evil force? Suppose you're a historian at ...
scientist
A techer pushed a 98 newton desk across a floor for a distance of 5 meters she exerted a horizontal force of 20 newtons. how much work was done?
scientist
Mrs. leuenberger ran the same marathon but since her husband was hunting and she couldnt find a babysitter she had to carry her two daughters in her arms they weigh 40pounds and 55pounds Mrs Leuenberger weighs 145 pound (but you didnt hear that from me)How much work and power ...
scientist
Mr.Becks gigantic gas- guzzling exhaust spewing urban assault vehicle suburban weighs 10000 pounds it takes Mr Beck 2 minutes to drive 1.5 kilometers to west valley fitness so he can ride the stationary exercise bike for a half hour How much work and power did the suburban do?...
Technology
is there anything i should add to my answer: 1. There are seven inputs common to all technological systems. List these inputs and give an example of each one. There are seven inputs common to all technological systems. These include people, materials, tools (machines), energy,...
chemistry
Why is rate of reaction important to scientists?
science
on what website do you find the biography of a latin american inventor or scientist?
scientist
how do scientists keep ice fossils frozen?
Physics (Please)
I'm confused and am hoping someone could help me understand energy can neither be created nor destroyed... great... so in physics classes we can set up problems and stuff were KEo + PEo = KE + PE Energy intial equals energy final sense energy is conserved but then when fri...
AP BIO
a scientist plans to use a microtome to cut sections of a particular type of tissue so then that typical cell will be cut into about 20 sections. to help him make careful observation of internal cell structures, he considers staining the sections with a dye. which of the follo...
scientist
classify properties as chemical or physical for gold?
Science
Are there scientists studying the population of organisms? If there is, what are they called?
Grammar and Composition
please check these: tell which is the correct word in each of the sentences. 1. Sarah had to (wait/weight) at the airport all night. wait 2. What are you going to (ware/wear/where) to the party tonight? wear 3. You don't have to have (your/you're) own way with everythi...
science
What element, found in all plants and animals, is used by scientists to determine approximate dates for an artifact’s age?
Science
14 letter word for "scientists do their experiments more than once so they can reduce the effects of chance errors. This is called conducting _________
scientist
what r the 6 step of the scientific method
Scientists
Information on Julie Morgan
Biology
1. A famous scientist once said that wherever in the universe life exists, some of those life-forms must be colored. Why would the scientist make such a statement? 2. One of the accessory pigments used in photosynthesis is beta-carotene, a carotenoid found in high concentratio...
science
is a news article the same as a news story is this a news article or a news story? Is Garbage The Solution To Tackling Climate Change? ScienceDaily (Oct. 3, 2009) — Converting the rubbish that fills the world’s landfills into biofuel may be the answer to both the gro...
science
I have two questions. I'm doing a crossword puzzle and this is the question. "sometimes scientist make a mistake or ___and need to do the experiment again." The answer is 5 letters and the second to last letter is an O. The second question is "After the expe...
scientist
Scientists do their experimental tests more than once, so they can reduce the effects of chance errors. This is called conducting______________. I need help with this one.
science 4th grade
why do scientist predict?
reading/english
When studying the world of living things, biologists and other scientists use the scientific process. Observtions along with precious data are used to formulate a hypothesis. New observations and or experiments are carried out in order to test the hypothesis. Scientists often ...
Chemistry
A scientist wants to make a solution of tribasic sodium phosphate, Na_3PO_4, for a laboratory experiment. How many grams of Na_3PO_4 will be needed to produce 375 mL of a solution that has a concentration of Na^+ ions of 1.10M? I tried multiplying .375 L by 1.10 M to get the n...
social studies
many scientists believe that______began in africaover 2 million years ago
4th grade science
how do scientist preserve fossils frozen in ice
Science
how do scientists preserve a fossil frozen in ice
Science
There are two fill-in-the-blank questions that I can't find the missing word. If you could be of any help, I'd appreciate it. :) #1. The ____ describes the steps you use during an experiment. #2. Sometimes scientists make a mistake, or ____, and need to do an experimen...
science
sometimes scientists make a mistake or ? and need to repeat the experiment again.
science
1) what are five skills scientist use to learn about the world? 2) what are inferences based on? 3) why do scientist make models? ¢¾¢¾plz, plz help me.... i totally need help on this¢¾¢¾
scientist
The shark can accelerate to a speed of 32.0 km/h in a few seconds. Assume that it takes a shark 1.5 s to accelerate uniformly from 2.8 km/h to 32.0 km/h. What is the magnitude of the shark's acceleration?
scientist
suppose a polar bear running with an initial speed of 4.0 m/s accelerates uniformly for 18s. what is the bear's maximum speed if the bear travels 135m during the 18s of acceleration? Give the answer in both meters per second and kilometers per hour.
Science
Scientists do their experimental tests more than once, so the can reduce the effects of chance errors. This is called conducting___________________.
science
Scientist do experimental tests more than once so they can reduce the chance of errors. This is called conducting what?
history
plz check. thanks Compare and contrast the short and long- term effects of the Crusades on Western Europe and the Middle East. Western Europe: The series of military expeditions, spanning more than a hundred years, began with Pope Urban II to take back the Holy Land from Musli...
scientist
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an im...
science
When scientist do their experimental test more than once so they can reduce the effects of chance errors what is this called in one word?
biology
What are three points of evidence that scientists used to develp the three-domain system?
6th grade
How does a scientist choose which type of investigation to use?
science
scientist do test more than once to reduce chance errors which is called conducting what
Physics
(a) Identify the significance of scientists James Clerk in hertz’s research. (b) Explain the physics of why hertz was able to detect sparkling in small detector coil when the detector was located in the position shown on the diagram above. (c) Describe two tests Hertz car...
Biology
Read Scientific Inquiry, Controlled Experiments Then and Now, pages 6-7 of your textbook. Start by observing the living species around you. Ever wonder why a pollinator is attracted to a particular flower, or what would happen to predator species if a particular prey species i...
biology
Read Scientific Inquiry, Controlled Experiments Then and Now, pages 6-7 of your textbook. Start by observing the living species around you. Ever wonder why a pollinator is attracted to a particular flower, or what would happen to predator species if a particular prey species ...
science
14 letter word scientists do their experimental tests more than once so hey can reduce the effects of chance errors. This is called conducting ______________.
environmental science
Please check this: Scientists use statistics to a. graph data b. analyze data c. communicate ideas to each other d. all of the above B ( in my book it says: scientists rely on and use statistics to summarize, characterize, analyze, and compare data. statistics is usually a bra...
Science
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in run...
Intro to Psychiology 1
It is the proper role of a psychological research scientist to: A) Question data B) make safe predictions C) Keep research methods accessible only to those involved in the research D) Avoid making predictions. I know it's not (B) and i dont think it's (D) either. I'...
scientist
Scientists do their experimental tests more than once so they can reduce the effects of chance errors this called conducting__________?
science
i've got a question that i need help on what problems could occur if scientists didn't communicate the results of their investigations
economics
Discuss similarities and differences in the roles economists play as policy advisors and as scientists. How would advice offered to policymakers differ depending on which role an economist assumes?
science
how do scientists use measuremnets?
science
how do scientists use the si system?
chemistry
A scientist has 0.46 mL of a solution. How would she convert this volume to microliters?
calculus
Carbon-14 is a radioactive substance produced in the Earth's atmosphere and then absorbed by plants and animals on the surface of the earth. It has a half-life (the time it takes for half the amount of a sample to decay) of approximately 5730 years. Using this known piece ...
biology
Describe the dilemma posed by the taxon representing the protostome to scientists studying systematics in animal kingdom
10th grade English
Well, it is not quite English.. But it is an essay on my science project. I was wondering if I could get some help on grammar or awkward phrases. Please fix any mistakes in it ASAP.. Asthma, a multi-factorial disease, is caused by family heredity, which is, passed on from one ...
scientist
who was the greatest 20th century scientist?
scientist
What element, found in all plants and animals, is used by scientists to determine approximate dates for an artifact’s age?
Biology
Read Scientific Inquiry, Controlled Experiments Then and Now, pages 6-7 of your textbook. Start by observing the living species around you. Ever wonder why a pollinator is attracted to a particular flower, or what would happen to predator species if a particular prey species i...
Critical Thinking
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an im...
Science
How does Marie Curie help us understand the universe in which we live? Would this be correct?? With numerous experiments Marie confirmed Becquerel's observations that the electrical effects of uranium rays are constant, regardless of whether the uranium was solid or pulver...
Biology
How are scientists able to piece together the process of protein synthesis and the effects of genetic controls without direct observation?
elementary
how becoming a scientist
science
why do scientists use the same enzyme to remove the insulin and cut the plasmid?
science
why do scientists use the same enzyme to remove the insulin and cut the plasmid?
Grammar
Just a quick question- Choose the answer that best identifies the phrase in CAPS: Fossil plants that scientists have identified include cactuses and oaks, and THEY ARE PRESERVED IN BREATHTAKING DETAIL. A.adj. clause B.adverb clause C.noun clause D.independant clause D? Thanks!...
Grammar
The last four grammar questions of the day [I think]- idenify the word that the phrase in CAPS modifies: 1.A scientist WHO FINDS ONE NEW SPECIES is very happy Ans- scientist 2.WHEN SOMEONE FINDS SEVERAL NEW SPECIES AT ONCE, that is rare indeed Ans- rare?? 3.Only a few plants, ...
Grammar
I have a few more grammar questions, can someone please help me find the answer? Choose the answer that best identifies the phrase in CAPS. 1.These flower fossils, WHICH CAME FROM A VACANT LOT, are the best that have ever been discovered anywhere in the world. A.adjective clau...
Grammar
I need help on some of these questions: Identify the independant clause in the sentence: 1.Scientists have found traces of an ancient forest that once grew on an empty lot in New Jersey when the region had a tropical climate. A.on an empty lot in New Jersey B.Scientists have f...
English
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an i...
trig
Scientists believe that the average temperature at various places on Earth vary from cooler to warmer over thousands of years of gradual climate change. Suppose that at one place, the highest avg temp is 80 and the lowest is 60. Also suppose that the time it takes to go from t...
Math riddle
What is one problem That Rocket Scientist, Dr. Awkward, never has?
English
I am having trouble writing a topical outline and expanding it to a sentence for this paper: Marie Curie is best known as the discoverer of the radioactive elements polonium and radium, and is the first person to earn the honor of two Nobel prizes. Her work not only influenced...
Science
How do scientists know what the interior of the earth looks like when we have never seen it?
Science
How do scientists map the bottom of the ocean when they cannot travel there to see it?
Science
I have to do a project with a science related career (that doesn't necessarily mean a scientist, but someone who uses science frequently). What do you call a scientist who studies the science of music? I've google this but I couldn't find any results, but I know th...
Science
Can you please help me find a list of scientists that have something to do with energy? (They don't have to be famous.) Thank You!
Science
A scientist needs to take a picture of the well-ordered arrangements of the atoms and molecules within a substance. What instrument would be best for a scientist to use?
science
ok i have a couple questions. 1. How has life changed throughout Earth's history? 2.What are three things that fossils tell us about earth's past? 3.What is radioactive dating? how do scientists use parent and daughter elements to determine the age of a fossil? 4.What ...
science
Scientists believe that Earth's early atmosphere changed in composition as a result of a. the appearance of oxygen-producing organisms b. the drifting of the continents c. the changes in Earth's magnetic field d. a transfer of gases from the Sun
Pages: 1 | 2 | 3 | Next>> Post a New Question | Current Questions
Homework Help: Science
For Further Reading
|
