I don't know any trust worthy companies. Can you please list them.
finding experiments
Its called a Hypothesis.
Method used to conduct scientific experiments.
In scientific experiments, the variables may be changed.
It can be used to do experiments
Scientific equipment.
the scientific method
measurements
A scientific law is based on many repeated correct experiments.
A laboratory is a workshop where scientific experiments or practical scientific work is carried out.
Experiments and repeatabilty
laboratory