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5 Written questions

5 Matching questions

  1. Double replacement
  2. Symbol
  3. Base
  4. Eat-out
  5. What is the importance of estuaries to water fowl and shellfish
  1. a Abbreviation for an element; if t is two letters, the first letter is capitalized and second is not
  2. b 2 compounds react to form 2 different compounds• describe and give examples of the types of mixtures
    - consists of two or more pure substances
  3. c accepts protons from an acid, a water-soluble chemical compound that accepts protons from an acid (cleaning substances)
  4. d Some organisms need varying salinities at different times in their life cycles
  5. e nutria create a problem in the marsh because they eat the marsh grasses and dig up the roots

5 Multiple choice questions

  1. A negatively charged particle that moves around the nucleus
  2. Loss of wetlands as areas is filled for subdivisions. Increased nutrients in waterways from lawn fertilizers and herbicides, increased disposal of waste, further loss of wetlands as services (shopping centers, utilities, etc. move to area to provide for increased population
  3. kills the plants and many of the animals living there. When the plants die, their roots break up and no longer hold the land together. The land erodes away as it is washed by runoff and waves.
  4. (E coli) these bacteria live in the digestive systems of animals, including humans-indicates the dumping of animal or human waste into the water or an overpopulation of animals in the area
  5. 4 types; Freshwater- water not salty, Has most diverse plant and animal life, Intermediate- slightly salty mixed with fresh water, Plants can tolerate slightly salty water, Provide nursery for shrimp, crabs, and some fish, Brackish- moderately salty, Saltwater- highest salinity, Very few plants, Redfish, speckled trout, blue crabs, and shrimp must move in and out of the salt marsh during their life cycle in order to survive

5 True/False questions

  1. Neutronnon-native species (they do not naturally live in the area) they were brought to Louisiana to be grown for fur. Some of them escaped and have overpopulated some areas. Because they are non-native, they have no natural enemies to control their numbers. They create a problem in the marsh because they eat the marsh grasses and dig up the roots. The roots keep the soil stable. When they are destroyed, the plant dies and the soil erodes away more easily.


  2. Independent variableThe process of salt and water from an acid and a base


  3. 5 natural resources in LA(1) Oil and natural gas, (2) Fish and shellfish, (3) Salt and sulfur, Fur-bearing animals: (4) & (5) muskrat, mink, raccoon


  4. ExperimentA negatively charged particle that moves around the nucleus


  5. ProtonAn electrically charged atom that ha gained or lost one or more electrons