experiment
The explanation supported by many experiments is called scientific theory.
trial and error
yes all experiments need to have a control
field experiments
Scientists record experiments in trials.They repeat experiments over and over again so they can find averages.Also,experiments in different conditions,called varibles,could change.But the main reason is the outcome would change
Experiments.
It's called a theory.
A Lab
variables
research
research
To improve their reliability.