To test the theory, he asked more than sixty college students to take part in an experiment.

VOA: special.2009.08.18

You can also perform a test. Take some of the material and add enough water to it to make it seem like you are making bread.

VOA: special.2009.09.14

Shuttle test director Stephen Payne said the lunar mission team agreed to allow Endeavour to take the launch pad,or range, on Wednesday.

VOA: standard.2009.06.16