Science test flash cards

Question 1

Science

Answer 1

a way of learning about the natural world through observations and logical reasoning leads to a body of knowledge.

Question 2

Sciencfic inquiry

Answer 2

Another term for the ongoing process of discovery and science.

Question 3

Physical science

Answer 3

The study of matter, energy and the changes that matter and energy undergo.

Question 4

Observation

Answer 4

using one or more of the five senses to gather information.

Question 5

Data

Answer 5

facts, figures and other evidence learned through observation.

Question 6

Inference

Answer 6

a logical interpretation based on observations and prior knowledge

Question 7

Hypotheis

Answer 7

a possible explanation for a set of observations or answer to a scientific question must be testable.

Question 8

Variable

Answer 8

any factor that can change in a experiment

Question 9

Manipulated

Answer 9

the one factor that a scientist changes during an experiment also called independent variable

Question 10

Responding Variable

Answer 10

the factor that changes as a result of changes to the manipulatod or independent variable, variable in an experiment: also called dependent variable

Question 11

Controlled experiment

Answer 11

An experiment in which all variables except one are kept constant.

Question 12

Scientific law

Answer 12

A statement that describes what scientists expect to happen every time under a particular set of conditions.

Question 13

Scientific theory

Answer 13

A well tested idea that explains and connects a wide range of observations.

Question 14

Chemistry

Answer 14

The study of the properties of matter and how matter changes.

Question 15

Element

Answer 15

A substance that cannot be broken down into other substances by chemical or physical means.

Question 16

atom

Answer 16

The smallest particle of an element.

Question 17

Symbol

Answer 17

usually one or two letter set of charcter that is used to identify an element.

Question 18

Compound

Answer 18

A substance that is made of two or more elements chemically combined

Question 19

Formula

Answer 19

A combination of symbols that shows the ratio of elements in a compound

Question 20

Mixture

Answer 20

Two or more substances that are mix together but not chemically combined

Question 21

Physical Change

Answer 21

A change that alters the form or appearance of a substance but does not make the material into another substance.

Question 22

Chemical Change

Answer 22

A change in matter that produces new substances

Question 23

Chemical reaction

Answer 23

A Process in which substances undergo chemical changes.

Question 23

Weight

Answer 23

a measure of the force of gravity on an object

Question 24

Mass

Answer 24

A measure of how much matter is in an object.

Question 25

International System of Units

Answer 25

A system of measurement based on multiples of ten and on establishes measures of mass, length, and time.

Question 25

Volume

Answer 25

The amount of space that matter occupies.

Question 26

Density

Answer 26

The measurement of how much mass is contained in a given volume.

Question 26

Chemical Bond

Answer 26

The force that holds two atoms together.

Question 27

Molecule

Answer 27

A combination of two or more atoms that are bonded together.