Scientists say climate change and human activity have increasingly led to the melting of massive pieces of Antarctic ice.

VOA: special.2009.04.22

In one activity, children try to get a robot arm to pick up a block and place it in a cup.

VOA: special.2010.07.28

Other things including high fat diets and reduced physical activity are also believed to be pushing the numbers upward.

VOA: special.2009.03.02

They answered questions about their level of physical activity as teenagers and at age thirty, fifty and late in life.

VOA: special.2010.07.07

The party opposes his plan to cut taxes for middle class Americans and use of government spending to increase economic activity.

VOA: special.2009.05.02

Laura Middleton says the research showed that even low-intensity activity reduced the risk of thinking problems and memory loss.

VOA: special.2011.07.27

These studies must consider wildlife activity up to about three thousand meters above an airport and eight kilometers around it.

VOA: special.2009.04.01

This medicine seems to work by governing the activity of a chemical involved in information processing, storage and memory.

VOA: special.2011.02.08

But one activity that legally is only supposed to be for people age twenty-one and over is drinking alcohol.

VOA: special.2009.08.07

Gerald Meehl says a better understanding of solar activity and its influence on weather may help researchers predict long-term weather conditions.

VOA: special.2009.09.29

And he says it must start in the schools by giving all Indian children the same instruction on physical activity and diet.

VOA: special.2010.05.12

The researchers also gathered information about people's education, financial earnings, physical activity and use of alcohol or cigarettes.

VOA: special.2009.04.15

All of these things combined help to improve heart activity, lower blood pressure and cholesterol levels, and reduce bone and muscle loss.

VOA: special.2010.06.08

A spokesman for the Convention and Visitors Bureau,Steve Lewis,says economic activity last month was down five percent from February of last year.

VOA: special.2009.03.30