1.   He did some experiments with bats.

2.   I can do experiments in the greenhouse that show that red spruce are harmed by ozone and acid deposition.

3.   They are doing experiments to learn more about the affects of alcohol on the brain.

4.   We did an experiment to test the acidity of the soil.

5.   He has done experiments complementary to those of Eigen.

6.   They did some experiments with magnets.

7.   The article describes how the experiment was done.

8.   Behavioral scientists have done countless experiments to prove that any human being tends to repeat an act which has been immediately followed by a pleasant result.

9.   I mean, other people can do the experiment or repeat it.

10.   One of the crucial rules about doing an experiment is to report it fully, so that it can be repeated if necessary.