Abeka 3rd Grade Science Exploring Gods World chapter 9 & 10
Terms in this set (42)
The top layer of soil. It is dark-colored, rich in minerals, and not very deep.
The second layer of soil. It is lighter in color, and has fewer minerals, and is deeper than topsoil.
rich in mineral resources
is soil in which plants grow well.
growing different plants in a field every year to help keep the soil fertile
something added to the soil to replace mineral resources
the wearing away of soil or rock by wind and water
is the loss of soil by water and wind
small ditches that form where the soil is washed away
Help farmers by make tunnels that allow air and water to get into soil. Eat soil that contains tiny pieces of dead plants. The waste that worms form enrich the soil.
Is not a farmers friend. Plows under the ground to make its tunnels and kills the roots of the plants
Helps the farmer by eating 3 times its weight in food each day. Eats insects that are harmful to the plants.
Helps the farmer by eating insects such as grasshoppers and caterpillars. It also likes to eat mice and rats that harm the crops.
Is not the farms friend because it eats half its weight in food a day. One can eat twenty-five pounds of the farmer's crops.
is the condition of the air.
is layer of the air that surrounds the earth
heat, water, and wind
three main elements or ingredients that make the weather
to soaks up
to send out rays of heat
to change into a vapor
water in the gaseous form
the falling of rain, snow, hail, or sleet
beads of ice that began as rain falls through freezing air
a very small drop
frozen raindrops that are bounced up and down by the air in a thunderstorm before they fall to earth in the shape of stones
to be full of water vapor
electricity that jumps from one cloud to another or from a cloud to the earth
the sound that lightning makes
a windstorm that builds up over the warm ocean
a windstorm that builds up over hot land
absorbs the sun's heat during the daytime
the earth radiates this off at night
protects the earth from the suns burning rays by providing a blanket of protective air during the day
solid, liquid, or gas
three forms of water found in the air
is lighter than cold air, it rises
As the warm, moist air rises, it begins to cool. Cooling of warm, moist air causes clouds to form. This is called ?
The earth and the air are always exchanging water with each other. The is called the ?
the thickness of a circle
A tornado is often called a ?
Thunderstorms, Hurricanes, and Tornados
The safest places
to be in a thunderstorm are in a car or in the building that has a steel frame and a lightning rod.
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