8. Back to the Question Amanda says : In scientific notation, numbers are written in the form M x 10n, where the factor M is a number greater than or equal to 1 but greater than 10 and n is a whole number.
14. Back to the Question Amanda says : Percent error is calculated by subtracting the experimental value from the accepted value, dividing the difference by the accepted value, and then multiplying by 100.
15.
16.
17. Back to the Question Amanda says : Professor Ali rewarded his students for working hard on the final project and going beyond the call of duty.
18.
19.
20. Back to the Question Edward says : credit card balance
21.
22.
23. Back to the Question Edward says : It would introduce error in the measurement and any subsequent calculations.
24.
25.
26. Back to the Question Edward says : 5.21 x 10 11 mm
27.
28.
29. Back to the Question Edward says : Weight is the measure of the gravitational pull on matter.
30.
31.
32. Back to the Question Joseph says : 440 g Joseph
33.
34.
35. Back to the Question Joseph says : 7.5 m 3 Joseph
36.
37.
38. Back to the Question Joseph says : Quantitative information is numerical; qualitative information is non-numerical. Joseph
39.
40.
41. Back to the Question Joseph says : Volume is how much the object weighs. Joseph
42.
43.
44. Back to the Question Cynthia says : Larger units are used because gases take up more space. Cynthia
45.
46.
47. Back to the Question Cynthia says : Scientific figures in a measurement consist of all the digits known with certainty plus one final digit, which is somewhat uncertain or is estimated. Cynthia
48.
49.
50. Back to the Question Cynthia says : There needs to be agreements on meaning and size of units. Standards for units must be unchanging to avoid confusion and ambiguity. Cynthia
51.
52.
53. Back to the Question Cynthia says : A model in science is more than a physical object; it is often an explanation of how phenomena occur and how data or events are different from each other. Cynthia
54.
55.
56. Back to the Question Logan says : A hypothesis is a testable statement. Logan
62. Back to the Question Logan says : 2.156 g Logan
63.
64.
65. Back to the Question Logan says : Accuracy refers to the closeness of a set of measurements to one another. Precision refers to the closeness of measurements to the correct or accepted value. Logan