chapter 1

Question 1

How is science and technology related

Answer 1

advances in science may lead to advances in technology and vise versa

Question 2

how does earth science overlap with life science

Answer 2

earth science involves the study of systems that may include living organisms

Question 3

what are the building blocks of all matter

Answer 3

atoms

Question 4

what happens when the data in an investigation do not support the original hypothesis

Answer 4

the hypothesis will be revised

Question 5

which of the following statements is true about scientific theories

Answer 5

scientific theories are never proven

Question 6

why are scientific models important

Answer 6

they help visualize things that are very complex, very large, or very small

Question 7

which of the following is an example of a safe laboratory procedure

Answer 7

tying back long hair and loose clothing

Question 8

which of the following conversion factors would you use to change 18 kilometers to meters

Answer 8

1000m/1km

Question 9

there are 1660 megawatts of wind-generated eletricity

Answer 9

1,660,000 kilowatts

Question 10

which of the following clocks offers the most precision

Answer 10

a clock that measures time to the nearest tenth of second

Question 11

approximately how many kelvins are equal to 60F

Answer 11

289

Question 12

the type of graph used to show how a part of something relates to the whole is a..

Answer 12

circle graph

Question 13

how do scientists who speak different languages make their data understandable to one another

Answer 13

they all us si

Question 14

why are peer reviews important

Answer 14

all of the above

Question 15

if the relationship between the manipulated variable and the responding variable is a direct proportion, what will a line graph of this relationship look like

Answer 15

a straight line

Question 16

a measurement must include both a number and an..

Answer 16

unit

Question 17

an experiment in which only one variable, the manipulated variable, is changed at a time is called a..

Answer 17

controlled experiment

Question 18

the two mean areas of physical science are physics and…

Answer 18

chemistry

Question 19

in an experiment, if doubling the manipulated variable results in a doubling of the responding variable, the relationship between the variables is a

Answer 19

direct proportion

Question 20

the three values- 10.714 m, 12.821 m, and 13.646 m, have the same number of

Answer 20

sig figs

Question 21

explain hoe technology and science are related

Answer 21

science is a system of knowledge while technology is a pratical application of the knowledge

Question 22

what type of graph would be the best to use to compare the levels of lead contamination in six water wells

Answer 22

a bar graph

Question 23

what is the relationship between two variables if the product of variables is constant

Answer 23

inverse proportion

Question 24

what happens to the number in a measurement that is converted from kilometers to meters

Answer 24

it gets larger

Question 25

describe a mean idea of physical science that deals with space time

Answer 25

universe