Sometimes, the roads are quite slippery in the winter months because there is ......... on the roadways.
Spring ......... help to moisten or dampen the earth so that flowers and other plants can grow after a long, cold winter.
People use a ..... to measure fluctuating temperatures. This instrument is made up of a glass tube with mercury in it that changes as the temperature rises or falls.
A ..... is made up of giant waves that can travel for many miles across the ocean and often destroy buildings and kill wildlife and people.
When areas experience long periods of dryness with no or little rainfall for long periods of time, this situation is called a ......
During the winter months when the temperature falls suddenly, a new, thin sheet of ice that freezes over already wet roadways is commonly called ..... because it appears to be transparent over asphalt or concrete. This kind of ice is very dangerous because it is transparent and difficult to see when driving on streets and highways.