Tree Rings and Ice Cores

Front

Light colored rings indicate growth of a tree during what time period?

Back

Spring and Early Summer

Front

Dark colored tree ring bands indicate growth during which time?

Back

Late Summer and Early Fall

Front

One light ring and one dark ring on a tree sample indicate _____________ of growth.

Back

1 year

Front

Wider tree rings generally indicate what?

Back

a warmer climate with increased precipitation

Front

Narrow (thin) tree rings generally indicate what?

Back

cooler temperature with less precipitation

Front

Wide tree rings indicate what?

Back

A long growing season

Front

Older layers of ice are found __________ younger layers of ice.

Back

Below

Front

When snow falls and forms layers of ice, bubbles of _______________ are trapped in the ice.

Back

gas, dust and other particles

Front

Large cylinders of ice extracted by drilling are referred to as what?

Back

Ice Cores

Front

Light colored bands found in ice cores are formed during what time?

Back

Summer