it's better to have a control but no you do not have to have a control in a science fair project
We Is Doing A Project On Control Variables.
Control in a science experiment means it stays the same and you don't do anything to it.
How to make a science Biome Project How to make a science Biome Project
the question of your science project
The variable is the characteristic being changed while the control is left as is to see what would normally happen.
it is a variable that you allow to stay the same throughout the experiment.
A control in a science fair project would usually be a separate running of the experiment where you don't change anything. Example: If you are testing the effect that music has on plant growth, you would grow a plant with no music.
what is interview for a science fair project
our science project bruv
it something to do with a science project
life science