University of California biologist Bill Schopf studies ancient fossils and the dirt they are found in on earth.
VOA: special.2010.05.25
Archeologists are able to estimate the age of these objects by dividing layers of dirt into time periods.
VOA: special.2009.08.18
When they have removed all the dirt, they are down to the brass tacks, the copper pieces that hold the boat together.
VOA: special.2010.05.16
Slowly,they moved the water around in the pan until most of the dirt and water washed away.
VOA: special.2009.02.04
It is said that he traveled the eighty kilometers to Mexico City to meet with reporters and arrived with dirt on his hands.
VOA: special.2009.11.10
They placed dirt and rocks in a pan and then filled it about half way with water.
VOA: special.2009.02.04
Remove dirt from the wound and press on it with a clean cloth or piece of clothing.
VOA: special.2009.08.11
But in time, huge machines were built that could wash many tons of dirt at a time.
VOA: special.2010.04.25
"I'm at home,digging in the dirt, or doing something that is very close to the Earth, because that's where I know how to survive."
VOA: special.2009.06.07
By the middle of the eighteen-hundreds, dirt roads had been built in parts of the nation.
VOA: special.2010.01.11
The rivers carried dirt and pieces of stone that slowly ate away at the surrounding rock.
VOA: special.2009.10.07
The present Taos Pueblo buildings are made of adobe, a mixture of wet dirt and straw.
VOA: special.2010.07.05
The process uses a closed system to keep hair and dirt out of the milk.
VOA: special.2010.07.20
With hand tools, he and Rufus Robinson threw dirt on the fire and dug a line to contain it so the flames would not spread.
VOA: special.2009.11.24
So it is normal for a burro to have some dirt in its coat.
VOA: special.2010.02.16
Wash the cans with soap and water, and brush or wipe away dirt.
VOA: special.2010.07.19
On the dirt roads near our house I learned to drive a car.
VOA: special.2010.01.30
First,remove any labels. The paper may contain dirt and germs from the floodwater.
VOA: special.2010.07.19
In addition to explosives, the techniques involved large amounts of water and dirt.
VOA: special.2009.03.22
First a gold miner put dirt in a metal pan and added water.
VOA: special.2010.04.25
Then he shook the pan so that the water would wash the dirt.
VOA: special.2010.04.25
These early homes were made of a mixture of wet dirt,wood and rocks.
VOA: special.2010.07.05
Dirt may be harder to remove from some crops than from others.
VOA: special.2009.06.09
The roads are still made of dirt. Driving requires a special vehicle.
VOA: special.2009.04.15
Heavy spring rains had turned the dirt roads into rivers of mud.
VOA: special.2009.09.17
It traps dirt and other matter and keeps insects out.
VOA: special.2010.03.31
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