sci vocab

Question 1

Observation

Answer 1

is the act of using one or more of your senses to gather information and take notes of what occurs

Question 2

Infrence

Answer 2

is a logical explanation of an observation that is drawn from prior knowledge or experience

Question 3

Hypothesis

Answer 3

is a possible explanation for an observation that can be tested by scientific investigations

Question 4

Independent variable

Answer 4

is the factor that is changed by the investigator to observe how it effects a dependent variable

Question 5

Dependent variable

Answer 5

is the factor measured or observed during an experiment

Question 6

Constants

Answer 6

are the factors in an experiment that remain the same

Question 7

Control group

Answer 7

is the part of an experiment that contains the same factors as the experiment group, but the independent variable is not changed

Question 8

Model

Answer 8

is a representation of a phenomenon, a system, a process, or a solution to an engineering problem that helps people visualize or understand the concept

Question 9

Scientific Theory

Answer 9

is an explanation of observations or events based on knowledge gained from many observations and investigation

Question 10

Scientific Law

Answer 10

is a rule that describes a pattern in nature

Question 11

Engineering

Answer 11

is the application of mathematics to solve problems

Question 12

Engineering design process

Answer 12

Is a series of steps used to find solutions to specific problems

Question 13

Criteria

Answer 13

are requirements or specifications for a solution to be successful

Question 14

Contrains

Answer 14

Are limitations put on the design of a solution

Question 15

brain storming

Answer 15

is a problem solving technique that involves individuals contributing ideas without the fear of being criticized

Question 16

cost benefit analysis

Answer 16

is the process of comparing the predicted benefits and costs of a solution

Question 17

prototype

Answer 17

is a model that is used to test a design

Question 18

accuracy

Answer 18

is a description of how close a measurement is to an accepted value

Question 19

credibility

Answer 19

is the confidence that can be placed in the truth of scientific findings

Question 20

earth science

Answer 20

understanding how rocks are formed, galileo makes the telescope, idea of self centered solar system

Question 21

life science

Answer 21

cells are critical to understanding living things, different cells perform different functions, major grem breakthrough in 1800

Question 22

physical science

Answer 22

focus attention on motion and force, Galileo and sir newton study gravity, matter anything that takes up space