1. Science

    1. What is the difference between a scientific theory and a scientific law? A) A scientific theory describes a pattern of observations, while a scientific law is an educated guess based on observation. B) A scientific theory is based on a few experiments,

    asked by Tim on September 14, 2015
  2. science help PLS

    Which of the following statements about matter is false? The amount of matter increases slightly as water changes state. The amount of matter in an object remains the same during changes in state. Matter is neither created nor destroyed. Liquids, gases,

    asked by Oscar on November 9, 2015
  3. plant biology

    I'm doing a writing assignment on plant stress physiology. The stress that I chose to research was heat stress. One of the things that I have to do is describe at least 3 experiments that I plan to perform (hypothetically speaking, of course). At least one

    asked by Victoria on November 11, 2012
  4. Science--HELP!!

    Can you please check my answers: 1. Dalton's idea that atoms cannot be divided into smaller parts was disproved by the discovery of _________ (electrons?) 2. The description of the structure of the atom is called ______ (atomic model?) 3. In a water

    asked by Amy on June 4, 2015
  5. American Government

    1. Thomas Hobbes and John Locke were European philosophers who influenced American founding documents with which theory? A. social contract theory B. divine right of kings theory C. no taxation without representation theory D. equal pay for equal work

    asked by Jessica on September 19, 2016
  6. Science

    What is the difference between a scientific theory and a scientific law? A. A scientific theory describes a pattern of observations, while a scientific law is an educated guess based on observation. B. A scientific theory is based on a few experiments,

    asked by Amber on August 13, 2015
  7. chm

    Why are the atomic masses listed in the periodic table not whole numbers? Answer Scientists have yet to make the precise measurements. That would be too much of a coincidence. ??>>The atomic masses are average atomic masses. or >>Today's instruments are

    asked by jj on February 23, 2013
  8. science Help 911!!

    If new information about the behavior of atoms is discovered and verified, then revisions will need to be made to the current? A. atomic theory B. atomic model C. atomic number D. carbon cycle Is the answer A?

    asked by blue on November 14, 2014
  9. Earth Science

    A measurement is best defined as (1)an inference made by using the human senses (2)direct comparison to a known standard (3)an interpretation based on theory (4)a group of inferred properties (2), right?

    asked by Anonymous on June 18, 2008
  10. Science

    Explain what the difference is between a scientific law and a scientific theory. My answer: A scientific theory predicts why something might happen and when more information goes into the theory it can better predict. But a law is something that no matter

    asked by Cough on October 2, 2017
  11. PS

    Does it look to you like Aristotle ever performed any actual experiments with falling objects? Explain your answer, based upon your observations from this lab .

    asked by pete on June 7, 2011
  12. Final Exam- Honors Physical Science

    how can you determine the number of protons, electrons,neutrons, atomic number, and the atomic mass of an element using the periodic table? Atomic mass is given in the table, as well as the atomic number and atomic mass number. Atomic number is the number

    asked by Kate on June 4, 2007
  13. physics

    What happens to the atomic number of the daughter nucleus if it is formed after the emission of the beta particle? The atomic number remains the same. The atomic number increases by two. The atomic number increases by one. The atomic number decreases by

    asked by eothwoie on October 23, 2012
  14. science Help 911!!

    One way the modern atomic model differs from Thompson's atomic model is that electrons are no longer scattered throughout an atoms positive matter like chocolate chips in cookie dough. Instead, each electron is outside of the nucleus occupying a

    asked by blue on November 14, 2014
  15. Grade 9 science

    What is an example of a homogeneous mixter that is a solid liqued or gas an example of homogeneous mixter that is a solid Steel is a homogenous mixture of iron, carbon, and other metals. air is a homogenouse mixture of gas Sea water is a homogenous mixture

    asked by Layal on October 11, 2006
  16. Chemistry

    Where am I going wrong? Law, Theory or Hypothesis 1) A doctor thinks, but has not verified, that a patient with stomach pain has appendicitis - Hypothesis 2) a description that predicts what happens, but does not explain how -Hypothesis 3) an explanation

    asked by Bella on February 10, 2014
  17. Science

    18. The description of the structure of the atom is called the ___. ATOMIC MODEL 19. In a water molecule, two atoms of hydrogen and one atom of oxygen share electrons. A ______ bond is found in a water molecule. COVALENT BOND 20. Sodium chloride is formed

    asked by Amy@@ on March 3, 2017
  18. Biology

    Can someone please tell me if I have the right answers? Pasteur's experiments led to which theory? A. biogenesis theory B. endosymbiont theory C. evolution theory D. spontaneous generation theory I think its A or D Scientists have fossil evidence for which

    asked by Jaylee on April 7, 2014
  19. Biology

    Can someone please tell me if I have the right answers? Pasteur's experiments led to which theory? A. biogenesis theory B. endosymbiont theory C. evolution theory D. spontaneous generation theory I think its A or D Scientists have fossil evidence for which

    asked by Jane on April 6, 2014
  20. Philosophy

    Derek Parfit believed that the split brain experiments provided evidence in favor of which of the following? Select one: a. Determinism b. Free will c. Hume's bundle theory d. The human soul e. Locke's memory theory I think b

    asked by TayB on February 20, 2015
  21. Science

    Daltons idea that atoms cannot be divided into smaller parts was was disproved by the discovery of______? The description of the structure of the atom is called the________? In a water molecule, two atoms of hydrogen and one atom of oxygen shared

    asked by Summer Moriarty on April 18, 2016
  22. chemistry

    Which of the answers choices best describes John Dalton's contribution to atomic theory? he discovered to nucleus he gave future scientist a foundation for understanding how electrons move. he gave future scientist a foundation for understanding how atoms

    asked by lydia on August 24, 2017
  23. Science - Chemistry

    1. Dalton's idea that atoms cannot be divided into smaller parts was disproved by the discovery of the ____. 2. The description of the structure of the atom is called the ___. 3. In a water molecule, two atoms of hydrogen and one atom of oxygen share

    asked by Hunter on April 29, 2016
  24. Science 1 easy question!!!!

    One way the modern atomic model differs from Thomsons atomic model is that electrons are no longer scattered throughout an atoms positive matter like chocolate chips in cookie dough, instead each electron is outside of the nucleus occupying a specific

    asked by check my answer on November 25, 2014
  25. English

    Could you check this? Complete the questions. I wrote my answers with capital 1. Researchers are SUPPOSED TO BE VERY careful when working in the lab. 2. They ARE SUPPOSED TO CHECK and recheck dangerous experiments. 3. They are SUPPOSED TO THINK before

    asked by Eliz on September 4, 2017
  26. 7th grade

    what is the modern atomic theory

    asked by olivia on November 19, 2009
  27. chemistry

    How is collaboration necessary and important for scientific advancement. use examples from the atomic theory please help

    asked by Anonymous on August 25, 2017
  28. science

    Which of the following best describes a theory? A a theory is a guess or hunch about something that has occurred in nature B a theory is based on verifiable laws that can be proven true C a theory is a set of ideas that explains a phenomenon that has been

    asked by moshimonsterssssss on September 24, 2018
  29. physical science

    what are contibutions jj tomson made to the atomic theory and the experiment he conducted to find his dicovery

    asked by jes on November 8, 2012
  30. Chemistry

    If there are 10 groups performing an experiment and each group needed 25.0 mL of 0.250 M NaOH, how would you prepare the NaOH solution for the whole lab using the NaOH pellets?

    asked by Mason Rutledge on November 26, 2016
  31. Science

    For each reaction in a lab I have to write: 1. the balanced molecular equation including states of matter 2. the balanced complete ionic equation, crossing out spectator ions, including states of matter 3. the balanced net ionic equation, including states

    asked by Al on March 29, 2007
  32. Science

    A)Could you add marbles to a beaker filled with sand and get the same results? B)How does the Particle theory model explain that a substance can be solid while having spaces between its particles? C)Why does 50 ml of water and 5oml of sugar NOT produce 100

    asked by Harmony Ann on February 24, 2014
  33. Physics

    What happens to the atomic number of the daughter nucleus if it is formed after the emission of the beta particle? The atomic number remains the same. The atomic number increases by two. The atomic number increases by one. The atomic number decreases by

    asked by tyewywtw on October 25, 2012
  34. 7th Grade Science

    What can be inferred after performing the experiments in the atomic theory lab? A) Where matter comes from B) How salt is formed C) If salt can dissolve in water D) If matter is created or destroyed Is it D?

    asked by kathy on August 21, 2012
  35. science

    What can be inferred after performing the experiments in the Atomic Theory lab?

    asked by fred on November 14, 2013
  36. Science 7th Grade

    How do i solve this. Atomic Theory Date (year) Name of Scientist(s) Contribution to the Theory Source 5th century BC Leucippus and Democritus They proposed that all matter is composed of tiny particles called atoms that can’t be split into smaller pieces

    asked by None Of Your BIzz on September 18, 2016
  37. science

    What is a possible hypothesis that could be tested in the Atomic Theory lab?

    asked by bob on September 30, 2013
  38. Chemistry

    I have to summarize the development of atomic theory. I think this question is talking about Dalton's atomic theory, is that right

    asked by Sue on November 4, 2008
  39. chemistry

    Explain how understanding of the atomic emmission spectrum led to developement of the atomic theory. The emmissions spectrum for each element is unique. You can identify an eleement by its spectrum. The atomic theory states that all atoms of a given

    asked by lulu on October 15, 2016
  40. Science, Astrenomey

    This is my theory, read well if you wish to know the truth: according to the big bang, there is a equal amount of anti-matter to the matter, BUT nearly all that matter is missing! In this theory there was NO anti-matter when the earth was made. anti-matter

    asked by The Curse Word Destroyer, age 11 on August 23, 2012
  41. Chemistry (The Composition of an Atom)

    In 1808, John Dalton wrote his atomic theory of matter. The following is a list of points from that theory. If it is still considered true today, label it true. If it is not considered true today, label it false. 1)Atoms cannot be subdivided. 2)Atoms

    asked by Andy on April 14, 2011
  42. Science

    Use the following words to fill in the blanks. Atomic number Ionic bond Atomic mass Law of conservation of mass Endothermic reaction Electron Covalent bond Product Isotope Proton Carbon cycle Energy level, orbital, or shell Atomic model Atomic theory 1.

    asked by Ⓙⓤⓟⓘⓣⓔⓡ on February 7, 2020
  43. physics

    In a specific region of interstellar space the atomic composition of gaseous matter is 89.1% atomic hydrogen and 10.9% helium, the temperature is 27K and the pressure is 2.58x10^-15Pa. What is the density of matter in this region? What is the particle

    asked by alicia on February 13, 2013
  44. Sciences

    Helenium has an atomic number two. What can be inferred about helium from this fact?

    asked by Anonymous on September 16, 2013
  45. science,physics,chemistry

    According to our theory atomic size should increase in groups from top to bottom but in group 13 Aluminium has atomic radius 143 pm and Gallium has atomic radius 135 pm which is less WHY??????

    asked by Neh on July 7, 2016
  46. child psychology in general

    in conducting experiments to test scientific theories,exceptions? a.can be triggered if they are few in number b.tend to be disproved or substantially weaken the theory and must be reported c.are included to increase the power of the theory d.suggest that

    asked by susue on July 30, 2013
  47. Science Help!!!

    Sodium chloride is formed when the mental sodium bonds to the nonmetal chlorine. The atoms are held together by a *Blank* Atomic Number Product Isotope Ionic Bond Proton Atomic Mass Atomic Theory I would say Ionic bond is that right?

    asked by that emo girl! on March 15, 2018
  48. child psychology in general

    in conducting experiments the test scientific theories exceptions? a.can be ignored if they are few in number b.tend to disprove or substantially weaken the theory and must be reported c.are included in order to increase the power theory d.suggest that the

    asked by susue on July 31, 2013
  49. Science-Universe and Stars

    what s the osc illating theory of universe? the oscilaating theory of the universe is the theory on the universe expanding. The gravitational pull of all the galaxies plus whatever the other matter existed in the universe would be great enough to slow down

    asked by Sara on March 1, 2010
  50. Universe and the Stars

    what s the osc illating theory of universe? the oscilaating theory of the universe is the theory on the universe expanding. The gravitational pull of all the galaxies plus whatever the other matter existed in the universe would be great enough to slow down

    asked by Sara on March 1, 2010
  51. Chemistry

    The statement "matter can be neither created nor destroyed by chemical means, but it can be changed from one form to another" is the chemical law of A. definite proportions. B. atomic disintegration. C. conservation of energy. D. conservation of matter. im

    asked by Dave on February 25, 2015
  52. PLEASE HELP!!!

    Hi, I'm doing a science fair and they're asking us to put pictures of us doing experiments or to bring in a model. In my project I experimented on people so was I supposed to take pictures of people performing the tasks? I already did the project and

    asked by samantha on March 31, 2012
  53. science fair

    Hi, I'm doing a science fair and they're asking us to put pictures of us doing experiments or to bring in a model. In my project I experimented on people so was I supposed to take pictures of people performing the tasks? I already did the project and

    asked by samantha on March 31, 2012
  54. chemistry

    which pairing below does not correctly match the scientist with the contribution to the understanding of the atom A. Proust and the realization that the elements of compounds are found in certain proportions by mass B. Thomson and the law of definite

    asked by Emiko on September 7, 2014
  55. chemistry

    which pairing below does not correctly match the scientist with the contribution to the understanding of the atom A. Proust and the realization that the elements of compounds are found in certain proportions by mass B. Thomson and the law of definite

    asked by Kaoru on September 7, 2014
  56. phy

    what assumption have you made in performing the free fall lab experiment and analyyzing the results?

    asked by ami on August 26, 2010
  57. Science help please...

    what element results if two protons and two neutrons are ejected from Radium what element results if two protons and two neutrons are ejected from Radium Look up the atomic number for radium, and subtract two. What element has that number? Radon??? a

    asked by Julie on March 5, 2007
  58. Physical Science

    Hello! Thanks for checking my question out! ____ Fill in the Blank 10. The _______________ theory of matter states that all particles of matter are in constant motion. (1 point) My Answer: kinetic Could someone please check my answer? Thanks! - Da Fash

    asked by Da Fash on September 21, 2017
  59. Chemistry

    We did a lab to find the atomic mass of Magnesium. We used an eudiometer and HCL and a mg ribbon. Explain in terms of moles, limiting reactants and experimental feasibility, why we use concentrated HCl (12M) instead of 1M or 6M?? Would the calculated

    asked by Denise on June 25, 2012
  60. Chemistry

    I'm doing a virtual lab in which I'm trying to separate tin, aluminum, and steel. Does the order in which I heat them at 300 degrees and observe their magnetism matter? The lab says the three are isolated when they are heated to 300 degrees and then placed

    asked by Anonymous on September 8, 2015
  61. college_ethics applied

    Match the following definitions of happiness to the theory: a. Egoism b. Virtue Ethics c. Natural Law d. Hedonism Happiness is a matter of fulfilling one's purpose in life. Happiness is a matter of immediate gratification, living for one's self in the

    asked by HK on October 27, 2008
  62. Biology

    Describe two scientific theory (atomic,kinetic,cell theory) and non scientic (moral, ethical, religious theories ).Differentiate between the scientific and non scientific theories explaining why there are some questions that science cnnot answer.

    asked by Leila on October 1, 2008
  63. science help pls pls

    Which statement best explains why the Big Bang Theory is the leading scientific explanation of the development of the universe over time? Its experiments reject all old theories on the origin of the universe. Its experiments yield different results every

    asked by Oscar on April 14, 2016
  64. Science "HELP"!

    Passage:The particles of matter are in constant motion. The energy of motion is called kinetic energy, so the particles of matter have kinetic energy. As matter becomes warmer, its particles move faster. As a result, their kinetic energy increases.

    asked by #FreeGucci on April 15, 2016
  65. Science.

    Whats the difference between a scientific theory and a regular theory? A theory may be about anything but a scientific theory is designed to explain some scientific principle. Why people shop at a certain store might be an ordinary theory but why AgCl is

    asked by Christina on August 9, 2007
  66. 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

    asked by Scott on March 5, 2007
  67. Science

    Was Daniel Bernoulli for the atomic theory or against it and explain why?

    asked by Ali on December 8, 2011
  68. Science

    Why is the atomic model and theory subject to change?

    asked by Parakeenta on February 18, 2020
  69. chemistry

    what did amedeo avogadro contribute to the atomic theory?

    asked by mark on February 21, 2012
  70. sociology

    Which theory, in conjunction with labeling theory, tries to explain how people define deviance in situations in everyday life? A. conflict theory B. functionalism theory C. network theory D. symbolic interaction i cant find this in my vocabulary list so

    asked by orpheus on November 27, 2013
  71. physical science

    describe the three main ideas of Dalton's atomic theory.

    asked by taylor on October 15, 2008
  72. chemistry

    why is Collaboration necessary and important for scientific advancement. use an example from the atomic theory please help

    asked by malia on August 25, 2017
  73. Science

    explain the key concepts of atomic theory and potential uses. Help please and thank you :D

    asked by URGENT on September 6, 2019
  74. physical science

    Describe the three main ideas of Dalton's atomic theory.

    asked by taylor on October 15, 2008
  75. 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

    asked by ~christina~ on September 3, 2007
  76. psy-

    match -Psychodynamic Theory -Trait Theory -Learning Theory -Humanistic Theory -Sociocultural E. Popular theorists include Maslow and Rogers. A. psychodynamic theory

    asked by rose - Ms. Sue on April 20, 2008
  77. Atoms and Elements

    what is the particle theory of matter?

    asked by Brooke on May 21, 2009
  78. Social studies

    Which theory of migration states that people sailed down the West coast of North America to make settlements? A) European Migration theory B) Northern Asia Coastal theory C) Bering Land Bridge theory D) Polynesian theory

    asked by Xoxo on November 20, 2017
  79. chemistry

    Back to the atomic emmission spectrum and the atomic theory. in the 1900s, scientists observed that when a gaseous element, such as hydrogen was subjected to an electric discarge that the atoms emitted electromagnetic radiation. The light emmitted could be

    asked by lulu on October 15, 2016
  80. law of definite composition

    when performing an experiment using potassium chlorate and heating it to form potassium chloride what reasons can you offer for any differences between your results and another lab group in your class?

    asked by Ash on March 10, 2010
  81. Re: Plant biology

    I'm doing a writing assignment on plant stress physiology. The stress that I chose to research was heat stress. One of the things that I have to do is describe at least 3 experiments that I plan to perform (hypothetically speaking, of course). At least one

    asked by Victoria on November 14, 2012
  82. psy 210

    Match the psychological theories with the appropriate statement(s): Psychodynamic Theory Trait Theory Learning Theory Sociocultural Humanistic Theory

    asked by Anonymous on June 26, 2008
  83. chem

    use atomic theory to explain why chemical reactions obey the law of conservation of mass

    asked by sara on February 4, 2016
  84. Child Development

    Please help I am correcting my child's homework. which of these theories would be considered behaviorism and why? A. Psychosocial Theory B. Social Learning Theory C. Cognitive-Development Theory D. Sociocultural Theory

    asked by Anonymous on September 18, 2011
  85. Chemistry lab reports online?

    Are there any websites with other students' lab reports with calculations online? I do not want to copy and am completely against plagiarism. I just want to look at others' examples to help in giving me ideas on how to write my own and make sure I have

    asked by Joanna on April 28, 2014
  86. Physical science

    How does the law of conservation of matter apply to chemical equations? A. The sum of the coefficients on each side of the equation must be the same. B. The sum of the atomic masses on both sides of the equation must be the same.** C. The sum of the atomic

    asked by Sophia on March 23, 2020
  87. child psychology in general

    in conducting experiments to test scientific theories,exception a.can be ignored if they are few in number b.tend to disprove or substantially weaken the theory and must be reported c.suggest that the research method was faulty my answer is b

    asked by susue on February 23, 2015
  88. Socioloy

    Cassie is a 15 year runaway who is assaulted. Which victimization theory would best apply to her stituation? 1)Victim precipitation 1)Lifestyle Theory 3)Deviant place Theory 4)Routine activities Theory

    asked by sara on October 30, 2014
  89. Psychology 210

    I need help with the different Psychological theories 1) Psychodynamic Theory,2 learning theory 3) Humanistic theory, 4) Trait Theory 5) Sociocultural

    asked by ms miller on May 23, 2009
  90. Physical Science

    How does the study of heat relate to the kinetic theory of matter?

    asked by Sue on April 27, 2010
  91. physical science

    compare the postions of the electrons in Bohr's model of the atom with their positions according to modern atomic theory

    asked by taylor on October 15, 2008
  92. Chemistry

    The standard atom for the atomic masses of all the elements is the atom of carbon which has 6 protons and 6 neutrons (12C) and is assigned the atomic mass of exactly 12. Under this standard, the atomic mass of iron, atomic number 26, is 55.845 u and the

    asked by Anonymous on September 19, 2008
  93. psychology -

    I have to match the following: A. Individualism versus collectivism answer: Humanity theory B. Popular theorist Eysenck initiated the five-factor model. answer: Learning theory -psychodynamic -Trait Theory -Learning Theory -Humanistic Theory -Sociocultural

    asked by rose - Ms. Sue on April 20, 2008
  94. psychology

    A theory differs from a hypothesis in the following ways: Question 2 options: 1) they are proven hypotheses and are not subject to change 2) acts as a starting point for additional experiments 3) allows us to describe and explain observed behaviour 4) all

    asked by Indigo on April 5, 2014
  95. chemistry

    Please, can someone help me? How do the submicroscopic and macroscopic views of matter differ? How are the submicroscopic and macroscopic views related? Also, what are the submicroscopic and macroscopic views? Thanks! submicroscopic = atomic macroscopic =

    asked by Maryann on October 31, 2006
  96. Chemistry labs in highschool

    I was curious to know whether it was standardized practice to have labs for chemistry classes in highschool. I personally have never had labs for chemistry in highschool. In my state we have the Regents. You may or may not have heard of this test, but the

    asked by ~christina~ on August 23, 2007
  97. Biology helppppppp

    1. Why was communication through books, letters, and lectures such an important factor in the development of the cell theory? What do you think would happen if scientists today were unable to communicate with each other? In science, we build on the works

    asked by Maya on October 16, 2006
  98. CHEMISTRY-For Dr.Bob

    My chem class just finished a lab in which the objective was to find the percentage of silver and barium in a nitrate salt mixture by precipitating the chromates, separating out the precipitate from the solvent and spectator ions via filtration, and

    asked by Catie on January 29, 2008
  99. History

    10. Many geographers, such as Elder, Knopp, and Nast, refer to theories that explain or inform our understanding of sexuality and space as........ A. queer theory B. heteronormative theory C. gender studies D. spatial theory E. modernization theory A

    asked by Anonymous on January 23, 2016
  100. Biology

    How does a theory provide a framework for the way scientific investigations are conducted? Identify a theory that served for a time and was then supplanted. Compile what you know about the theory, and the effect of the wrong theory on the way people

    asked by Olivia on August 23, 2009