Unit 1: Nature of Science Quiz 1

Question 1

range

Answer 1

the smallest number subtracted from the largest number in the set of numbers

Question 2

mode

Answer 2

the number that occurs the most

Question 3

median

Answer 3

put in order from least to greatest or greatest to least and find the number in the middle

Question 4

mean

Answer 4

all of the numbers in a set added together and then divided by the amount of numbers in the set

Question 5

law

Answer 5

always happens, doesn’t change (has been proven)

Question 6

theory

Answer 6

an accepted hypothesis

Question 7

hypothesis

Answer 7

an educated guess

Question 8

constant variable

Answer 8

the variable that does not change during an experiment (aka as the controlled variable)

Question 9

dependent variable

Answer 9

the variable that you measure or observe

graphed on the y axis

Question 10

independent variable

Answer 10

the one condition that you change in an experiment (graphed on the x axis)

Question 11

variables

Answer 11

a variable is any factor that can be controlled or changed in an experiment

Question 12

Quantitative

Answer 12

• deals with numbers
• data which can be measured
• length, height, area, volume, weight, speed, time, temp., humidity, sound levels, cost, members, ages, etc.
• Quantitative= quantity

Question 13

Qualitative

Answer 13

• deals with descriptions
• data can be observed but not measured
• colors, textures, smells, taste, appearance, beauty, etc.
• qualitative= quality

Question 14

observation

Answer 14

using one or more of the 5 senses to gather info, may include the use of equipment

Question 15

inference

Answer 15

the development of ideas based on observations (guessing)