(adj) when everyone is treated in a way that is right or equal OR when variables in a science experiment are controlled so that they should not affect a test result

(n) a test or an experiment OR when lawyers from different sides present evidence to figure out if someone is guilty OR a test that is repeated as part of an experiment

(n) something that can change in different situations

(adj) when you decide something based only on the facts, not how you feel about someone or something

(n) when someone takes several steps or actions to get a result OR part of the scientific process is to repeat trials and experiments to make sure that a result is correct

(v) to make sure everything works the way you want it to OR to make sure conditions stay the same in the experiment so you're only measuring the thing you want to measure

(n) a feeling experienced or action displayed in response to something

(v) to influence or change something

(n) an idea about why something happens that needs to be supported with evidence

(v) to create or design; make something new

(n) a way of doing something; a method

(v) to name or recognize something or someone

(v) to try to figure out the truth about something by learning more about it

(adj) able to be tested using procedures, measurements, and data to find out answers

(v) to carry out a procedure or task

(n) a machine that does a specific task or job

(adj) happening at the beginning before other things occur

(v) to find out the facts about something