UNIT 8 VOCABULARY REVIEW

soil Weathered and eroded rock will form soil over time. portion of Earth’s surface formed from broken down rock and humus

bedrock Sometimes one can find water close to the bedrock. bottom layer of unbroken solid rock material

humus Soil becomes more fertile when there is more humus available. dark, organic material in soil formed from decomposition of once living organisms

loam When planting our garden, we used loam to put around our plants in hopes of having a better harvest. rich type of soil containing equal amounts of sand and soil, some with small amounts of clay

litter Rain forests have very fertile soil due to the decomposition of the leaf litter. a layer of slightly decayed material just above the soil layer

decomposer Material is broken down in an ecosystem by a decomposer. type of organism that breaks down dead, decaying things

physical map We found various landforms labeled on the physical map. type of map that indicates landforms and bodies of water with color or labels

landforms Mountains, peninsulas, rivers, and plateaus are just a few examples of landforms. physical geographical features found on Earth

political map We saw the United States and its states, Canada and its provinces and territories, and Mexico and its states labeled on our classroom’s North American political map. map that indicate political boundaries of continents, countries, or states and territories

population density map Each of the colors represent a different amount of people living in the country on the population density map. a map that typically uses color to indicate the amount of people living in a certain area or space

mountain As we go up the mountain, our elevation and altitude begins to increase. a landform of higher elevation or altitude

peninsula Florida is an example of a peninsula. landform surrounded on three sides by water

continent We will study the continents of North and South America, Europe, and Australia in sixth grade. one of the seven largest landmasses on Earth

country North America is made up of our country, U.S.A., and Mexico and Canada. political division of some continents around the world that are distinguished by having their own government system

nation We pledge our allegiance to our nation, the United States of America. political division of citizens united under a governmental unit