Unit 1

Question 1

base unit for length

Answer 1

meter

Question 2

long distance for length

Answer 2

kilometer

Question 3

small lengths

Answer 3

centimeters

Question 4

base unit for mass

Answer 4

gram

Question 5

big units of mass

Answer 5

kilograms

Question 6

base unit for volume

Answer 6

liter

Question 7

the curved upper surface of a liquid in a tube

Answer 7

meniscus

Question 8

a scientific explanation for a set of observations, an “educated guess”, must be testable, and an experiment will either support or reject the hypothesis

Answer 8

hypothesis

Question 9

tests the effects of a single variable

Answer 9

controlled experiments

Question 10

not treated with the independent variable

Answer 10

controlled experiment

Question 11

treated with the independent variable

Answer 11

experimental group

Question 12

a condition that changes

Answer 12

variable

Question 13

the variable that is changed or manipulated

Answer 13

independent variable

Question 14

responding variable that changes in response to the independent variable

Answer 14

dependent variable

Question 15

data that is descriptive

Answer 15

qualitative data

Question 16

data you can count

Answer 16

quantitative data

Question 17

a well tested hypothesis, unifies observations and data, enables scientists to make accurate predictions

Answer 17

theory

Question 18

the process in which organisms keep their internal conditions fairly constant

Answer 18

homeostasis

Question 19

2 parents to create an offspring

Answer 19

sexual reproduction

Question 20

copies DNA and split into two (1 parent)

Answer 20

asexual reproduction`

Question 21

enlargement of the specimen, objective, ocular

Answer 21

magnification

Question 22

multiply ocular by objective

Answer 22

total magnification

Question 23

2 lenses, uses light rays, magnifies up to 2000x, good resolution, can view images .2 microns or larger, can view living specimens

Answer 23

compound light microscope

Question 24

uses an electron beam, magnifies up to 2,000,000x, excellent resolution, can view images .2 microns or smaller, can only view dead specimens

Answer 24

electron microscope

Question 25

the least distance between 2 points in which they are seen as 2 points

Answer 25

resolution

Question 26

the area that we see while looking under the microscope, the area decreases with increased magnification, illumination decreases

Answer 26

field of view

Question 27

the distance between the objective and the slide, decreases as the power of the objective increases with magnification

Answer 27

working distances

Question 28

a less specialized cell takes on bigger tasks

Answer 28

differentiation

Question 29

producers

Answer 29

autotrophs

Question 30

consumers

Answer 30

heterotrophs

Question 31

tube that contains the eyepiece

Answer 31

eyepiece tube

Question 32

revolver allowing you to move the lens

Answer 32

nose piece

Question 33

lowest power objective 10x

Answer 33

scanning power

Question 34

40x objective

Answer 34

low power

Question 35

100x objective

Answer 35

high power objective

Question 36

clips that keep the specimen in place

Answer 36

stage clips

Question 37

regulates light

Answer 37

diagphragam

Question 38

produces light

Answer 38

illuminator

Question 39

allows you to see the slide

Answer 39

eyepiece

Question 40

connects to the base

Answer 40

arm

Question 41

moveable up and down holds the slide

Answer 41

stage

Question 42

big knob moving the stage up and down

Answer 42

fine adjustment

Question 43

small knob moving the stage left to right

Answer 43

course adjustment

Question 44

bottom of the microscope

Answer 44

base