3rd period science flash cards

quantitative observation

numerical measurements or observation

qualitative observation

things you notice or observe you senses

evidence

facts or observation that support of refute an idea

controlled experiment

an experiment where one variable is changed

controlled variables

factors kept the same or constant for all experimental groups

control

a group that provides a baseline compare your experimental groups

experimental groups

receive and different amount or type of the variable you are changing

independent variable

the factor you change or manipulate in the experiment

dependent variable

the factor you measure in the ecperiment

direct relationship

a change in the independent variable same change in the dependent variable

indirecet relationship

a change in the independent variable causes the opposite change in the dependent variable

exponential relationship

a change in the independent variable the dependent variable to change at a faster rate

cer

a structure for writing and argument or explanation that consists of a claim evidence and reasoning it describes how evidence supports a claim

claim

a clear concise and specific statement r

reasoning

explains how and why evidence and science concepts supports a claim to help make a strong argument

volume

the amount of three dimensional space occupied by an object or substance

mass

the amount of matter in an object

scientific notation

a shorthand way of writing vary large of vary small numbers by multiplying a number by a power of 10

beaker

used to hold heat mix or measure approximate volume of liquids

graduated cylinder

used to measure precise volumes

meniscus

curved upper surface of a liquid inside a tube reading is taken from the middle of the curve

flask

wide body and narrow neck used to hold mix heat or measure liquids and gases