Some require their students to turn in early versions of term papers, research papers and essays they are writing.

VOA: special.2009.04.23

He began to turn over in the air when his chute opened, and there were problems with the lines at first.

VOA: special.2009.11.24

To improve clay soils, mix in garden waste or other organic matter and turn the soil deeply in the fall.

VOA: special.2009.03.10

But this month, millions of people around the world will turn their attention to the games taking place in Vancouver,British Columbia.

VOA: special.2010.02.10

Tornadoes form when winds blowing in different directions meet in the cloud and begin to turn in circles.

VOA: special.2009.06.09

They would build a canal to carry them past the turn in the river, past the Confederate cannon.

VOA: special.2009.11.19

Tornadoes form when winds blowing in different directions meet in the clouds and begin to turn in circles.

VOA: special.2010.05.11

Another robot is designed to move and turn in a way that is similar to the Mars rovers.

VOA: special.2010.07.28

They used light-sensitive molecules to turn on and off nerve cells in the deep brain structure of mice.

VOA: special.2009.04.07

The Northwestern University researcher took part in a study that found a way to turn off the immune system in mice with arthritis.

VOA: special.2010.03.16

They said they were very happy to turn the corner and see works by an artist they recognized from museums in their own country.

VOA: special.2010.05.07

We could not turn them over to France or Germany, our trading competitors in Asia.

VOA: special.2010.07.22

It seemed to him that his flowers were beginning to turn brown in her hands.

VOA: special.2009.05.23

In a poor job market, many people turn to higher education, especially at two-year colleges.

VOA: special.2009.11.19