Chapter 1

Question 1

ask questions about things observed in nature

Answer 1

observation

Question 2

possible/testable explanation of observation

Answer 2

hypothesis

Question 3

used to find relationship between observations/hypothesis

Answer 3

experiments

Question 4

results analyzed/ determined to be true or false

Answer 4

conclusion

Question 5

put in order: conclusion, experiment, hypothesis, observation

Answer 5

observation, hypothesis, experiment, conclusion

Question 6

equation for calculating percentage (use x for multiplication)

Answer 6

part/whole x 100

Question 7

a pain reliever tablet with a mass of 550mg contains 325 mg of aspirin. what is the percentage of aspirin in the tablet?

Answer 7

59.1%

Question 8

an antiacid tablet with a mass of 1.3 g contains 38% by weight of calcium carbonate. Calculate mass of calcium carbonate in the tablet.

Answer 8

.494g

Question 9

put in order the steps of solving equations: solve, check answer, isolate variable, place like values on one side

Answer 9

place like values on one side, isolate variable, solve, check answer

Question 10

Tf= 1.8(Tc)+32 when Tf is 70*F solve for Tc (unit will be *C)

Answer 10

21.1*C

Question 11

IV or DV- cause

Answer 11

IV

Question 12

IV or DV- effect

Answer 12

DV

Question 13

convert 930900 into scientific notation (Ax10^b)

Answer 13

9.309x10^5

Question 14

convert 823.3 into scientific notation (Ax10^b)

Answer 14

8.233x10^2

Question 15

convert 0.0024 into scientific notation (Ax10^b)

Answer 15

2.4x10^-3

Question 16

convert 0.000000429 into scientific notation (Ax10^b)

Answer 16

4.29x10^-7