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Unit C Vocabulary. Howard Middle School Earth Science 6 th grade. Inference – To conclude by reasoning from evidence. Landform – A feature of the earth’s surface such as a lake, stream, valley, canyon, hill, ridge, or mountain. Marsh – An area of low-lying wet land; swamp or bog.

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Unit C Vocabulary


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unit c vocabulary

Unit C Vocabulary

Howard Middle School

Earth Science

6th grade

slide2
Inference – To conclude by reasoning from evidence.
  • Landform – A feature of the earth’s surface such as a lake, stream, valley, canyon, hill, ridge, or mountain.
  • Marsh – An area of low-lying wet land; swamp or bog.
slide3
Wetlands – An area characterized by a high proportion of water and watery land, such as a swamp, marsh, or bog.
  • Contour Interval – The elevation difference represented by the difference between two adjacent contour lines on a topographical map.
slide4
Contour Line – A line on a topographical map that indicates places of equal elevation.
  • Key – An explanatory table, such as that explaining colors and symbols on a map.
  • Scale – The size of a diagram or model in proportion to the actual size of the object.
slide5
Topography – The shape of the land, or the collection of landforms, in an area.
  • Topographical Map – A map that uses contour lines to represent the elevation of land surfaces.
  • Stability – The tendency of a landform to resist erosion or other change.
slide6
12. Average - The central, or typical, value of a numerical data set.

13. Mean – The central value of a numerical data set calculated by adding up all the data points in the data set and dividing this sum by the total number of data points in the data set.

slide7
14.Median – The middle value in a data set arranged in numerical order.

15.Mode – The most frequently occurring data point of a numerical data set.

16.Sample size – The number of data points in a data set.

slide8
17.Delta – A fan-shaped area that develops in the flat, low area where a river empties into a large body of water.

18.River Channel – The depression in the land through which a river flows.

19.Earth Processes – Dynamic actions that occur both on earth’s surface and inside the earth.

slide9
20.Constructive – A force or earth process that builds up earth material to create landforms.

21.Deposit – Earth materials that have been left in a particular location as a result of an earth process that drops sediments that were previously suspended in air, water, or ice.

slide10
22.Deposition – The earth process that results in a deposit of earth materials.

23.Destructive – A force or earth process that breaks down or removes earth material.

24.Erode – To remove earth materials from one place and transport them elsewhere, commonly by moving water or wind.

slide11
25.Erosion – The earth process by which earth materials are removed from one place and transported elsewhere.

26.Floodplain – The relatively level area on either side of a river that becomes covered with water when the water level in the river rises above its banks and overflows.

slide12
27.Weathering – The breakup of rock caused by mechanical or chemical processes.

28.Ecologist – Scientist who studies the interactions between organisms and their environment.

29.Engineer – A professional who uses science to solve practical problems, make equipment, and build structures.

30.Geologist – Scientist who studies the earth and the changes that take place on and beneath its surface.

slide13
31.Controlled Variable – A variable in an investigation or experiment that is held constant.

32.Tested Variable – A variable that is changed in a systematic way in an experiment in order to determine its effect.

33.Uncontrolled Variable – A variable in an experiment or investigation that the experimenter either ignores or is unable to hold constant.

slide14
34.Advantage – A property that, in your opinion, is good.

35.Breakwater – A rock structure parallel to the shore that is used to slow erosion by reducing wave energy hitting the shore.

36.Disadvantage – A property that, in your opinion, is not good.

slide15
37.Dredging – Removing earth material from under water.

38.Jetty – A rock structure built perpendicular to the shore that prevents deposition in a particular area, such as a harbor.

39.Longshore Current – A stream of water in the ocean that runs parallel to the shore.

slide16
40.Seawall – A wall made of rock, concrete, or similar material built along a cliff or shoreline to reduce erosion.