1. chemicals
2.laws
3. theory
yes
Yes, experimenting is the correct spelling.
it means to invent really if you are experimenting you are inventing something.
The word "experimenting" means to be in the process of an experiment, or testing.
An example of an investigatory project is experimenting with dominoes to test out the speed of them falling. Another good one is testing paintball shots to see what influence them.
I think you mean "if they are experimenting onkiller whales". If so, then PeTA will probably be on their tails pretty soon. Now if the scientists were experimenting killer whales, I assume they would do things that experimenting non-killer whales would do, just more lethally.
experimenting
by experimenting..
I think reputable
experimenting (the previous answer) is present tense of the verb... experiment is also a verb, and a noun, and some other things.. experimental is an adjective... but not sure its the one you want.
Natural science is observing , studying and experimenting to find the nature of things.
yes