hi im new and i need help revising so does anyone know anything about *independant variables* or *controled varisbles*

  • 0 votes

please

Posted Mon 4th February, 2013 @ 19:40 by Luc

4 Answers

  • 2 votes

Independant variable is the variable you change ( e.g the concentration of a solution)

dependant variable is the variable you measure ( e.g the volume of co2 produced)

Controlled variable is the variable you keep the same throughout the experiment (e.g same volume of water)

Answered Mon 4th February, 2013 @ 19:54 by The Girl andThe Big WideWorld
  • 1 vote

Independent is what you change

Dependant is what you measure

Control is what you keep the same

And I'll know this rhyme forever

Answered Mon 18th February, 2013 @ 12:52 by Hannah
  • 0 votes

http://getrevising.co.uk/resources/key_words_for_isas I've made a powerpoint with all those kind of keywords hope it helps :)

Answered Mon 25th February, 2013 @ 18:32 by Hannah-may
  • -1 votes

Dependant Variable is what changes will hapen itself for example what changes will happen in a reaction.

Independent Variable is what you will change. So if you were for example to add more hydrochloric acid in a soulution, you will be changing the concentration of it (different amounts of it), to see what will happen.

Controlled Variable is what you will have to keep the same inorder for it be a fair teat.

Answered Tue 5th February, 2013 @ 16:26 by halimah