TEKS Grade 7 Science - 7.8 - Diagnostic Earth Systems
Quiz by Texas Education Agency
Grade 7
Science (2017)
Texas Essential Knowledge and Skills (TEKS)
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- Q 1/10Score 0A student sets up the investigation shown. The movement of colored water through the gravel best models —29condensation of water vaporsurface runoff of precipitationconservation of waterpollution of groundwater
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- Q1A student sets up the investigation shown. The movement of colored water through the gravel best models —condensation of water vaporsurface runoff of precipitationconservation of waterpollution of groundwater30s7.8c
- Q2A student’s model of an area near a city depicts many activities that affect the quality of the water in the area. How does the agricultural activity most likely affect the surface water of the area?Crops absorb pure water from soil, causing the remaining water to contain more salt.Crops reduce erosion, increasing the amount of soil entering the river.Excess crop material accumulates on the riverbanks, slowing the movement of the river waterExcess crop fertilizer is carried by runoff into the river, causing excess growth of water plants.30s7.8c
- Q3A student drew the model below to represent a part of a watershed and some human activities that affect the watershed. How do the industrial, agricultural, and residential activities of humans most likely affect the groundwater in the area?All of thesePollutants from the activities percolate through the soil and enter the water table.The activities replace the groundwater used.The activities prevent most of the water from evaporating into the atmosphere.30s7.8c
- Q4An example of the dramatic effects of ___________ is the shape of the Grand Canyon.soilbioticwaterair30s7.8b
- Q5Why is the soil with growing trees not easily eroded by water?The roots hold the soil particles togetherThe soil is compact and hard to break.The roots absorb the waterThe soil stops the water from seeping into it.30s7.8b
- Q6Which Catastrophic Event has the biggest impact on Texas?HurricanesTornadoesFloodsEarthquakes30s7.8a
- Q7What is the definition of ecological succession?Occurs when there is a heavy rainfall or when there is a dam or levee failurePioneer species plant called lichens begin to grow on the rockEcological succession includes changes that occur gradually or suddenly in an areaAn underground layer of rock or soil which holds water30s7.8a
- Q8What are Catastrophic Events?The removal of soil and rock by water, wind, or other forces.The type of weathering in which rock is physically broken into smaller piecesExtreme weather events such as floods, hurricanes, and tornadoes; classified by the extent and intensity of their impact on the ecosystem.A land form caused by the deposition of sediment from wind30s7.8a
- Q9Which of the following is most likely to cause the greatest disruption to an ecosystem?Emptying an aquarium containing non-native species into a local waterwayCleaning the windshield of a car with an alcohol-based glass cleanerCutting down a small cedar tree to make holiday decorationsMowing the lawn in a city park30s7.8c
- Q10Deforestation affects both the people and animals in which trees are removed. How does deforestation affect the animals?It increases the number of animalsAnimals increase their source of food.It destroys the habitat of animals.It destroys the habitat of animals.30s7.8c
