You Need To Know This Yesterday

Question 1

independent variable

Answer 1

the variable which is altered during the scientific experiment

Question 2

dependent variable

Answer 2

the variable being tested or measured during the scientific experiment

Question 3

controlled variable

Answer 3

the variable that is kept the same throughout the scientific experiment

Question 4

science

Answer 4

the systematic study of the natural world

Question 5

atom

Answer 5

the smallest unit of a chemical element

Question 6

cell

Answer 6

the smallest unit of living matter

Question 7

charge

Answer 7

the amount of electricity carried by an object

Question 8

clone

Answer 8

an organism that is genetically identical to the unit or individual from which it was derived

Question 9

compound

Answer 9

a substance that is composed of two or more elements

Question 10

conductor

Answer 10

any material electricity and heat can easily travel through

Question 11

insulator

Answer 11

any material electricity and heat cannot pass through easily

Question 12

electron

Answer 12

a tiny particle that has a negative charge and orbits the nucleus of an atom

Question 13

element

Answer 13

a substance that cannot be broken up into a simpler substance

Question 14

gas

Answer 14

a state of matter that has no definite shape or volume, such as air

Question 15

homeostasis

Answer 15

the tendency of a system to maintain internal stability

Question 16

ion

Answer 16

an atom or molecule that has an electric charge

Question 17

liquid

Answer 17

a state of matter that has definite volume but no definite shape, such as water

Question 18

matter

Answer 18

something that has mass and can exist as a solid, liquid or gas

Question 19

molecule

Answer 19

two or more elements that are chemically joined

Question 20

nucleus

Answer 20

the central part of an atom

Question 21

organism

Answer 21

any living thing able to carry out life on its own

Question 22

proton

Answer 22

a positively charged particle located in the nucleus of an atom

Question 23

radiation

Answer 23

the movement of heat from one place to another by waves or particles

Question 24

resistance

Answer 24

the extent to which a material opposes the flow of electricity. (copper has low resistance)

Question 25

solid

Answer 25

a state of matter that has both definite shape and volume such as ice

Question 26

solvent

Answer 26

a substance, usually a liquid, that can dissolve another substance

Question 27

stimulus

Answer 27

anything in the environment that causes a living thing to react

Question 28

substance

Answer 28

anything that has mass and occupies space

Question 29

symbiosis

Answer 29

a close and prolonged association between two or more different organisms of different species

Question 30

tropism

Answer 30

the response of a plant towards or away from a stimulus

Question 31

velocity

Answer 31

the speed and direction of an object’s motion