Taken from the Oxford dictionary online version.
1The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
I once had a frog I experiment on. As a project.
He could jump 10 feet with all four legs on command.
So I cut one off. Told him to jump Then he jumped eight feet. I cut off another. Ordered him to jump he jumped four.I then cut off the last one and ordered him to jump. He just remain ed motionless. After several commands to jump and he wouldn't move, I concluded by removing his legs he became deaf.
It's all in how you interpret things.
