Science Final

Front 1

states of matter

Back 1

the physical forms in which a substance can exist, states include solid, liquid, gas, and plasma

Front 2

solid

Back 2

the state in which matter has a definite shape and volume

Front 3

absorption

Back 3

the transfer of energy carried by light waves to particles in matter

Front 4

acceleration

Back 4

the rate at which velocity changes; an object accelerates if its speed changes, its its direction changes, or if both its speed and direction change

Front 5

activation energy

Back 5

the minimum amount of energy needed for substances to react

Front 6

acid

Back 6

any compound that increases the # of hydrogen ions when dissolved in water and whose solution tastes sour and can change the color of certain compounds

Front 7

physical science

Back 7

the study of matter and energy

Front 8

scientific method

Back 8

a series of steps that scientists use to answer questons and solve problems

Front 9

technology

Back 9

the application of knowledge, tools, and materials to solver problems and accomplsih tasks

Front 10

observation

Back 10

any use of the senses to gather info.

Front 11

hypothesis

Back 11

a possible explanation or answer to a question

Front 12

data

Back 12

any pieces of info. acquired through experimentaion

Front 13

theory

Back 13

a unifying explination for a broad range of hypothesis and observations that have been supported by testing