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5 Written questions

5 Matching questions

  1. Pesticides
  2. Salinity
  3. profitable and useful
  4. Synthetic
  5. Mineral
  1. a substances that destroy pests
  2. b a mineral is classified as an ore as long as it is
  3. c most industrial diamonds and gems are ______________
  4. d a naturally occuring inorganic solid with a definite chemical composition and an orderly arrangement of atoms
  5. e the density of seawater is affected by temperature and ________

5 Multiple choice questions

  1. horizantal distance between the crests or troughs of two adjacent waves
  2. sunlight reacts with waste gases to form
  3. this law ensures that drinking water is safe
  4. a measure of the strength of an acid can be obtained using a __ _____
  5. oocurs when the crest of a wave thousands of miles long approaches the shore

5 True/False questions

  1. Barometeran instrument used to measure air pressure


  2. ScrubberNot a mineral (starts with an s)


  3. Neap Tidessubstances that destroy pests


  4. Scienceminerals containing silicon, oxygen, and one or more other elements


  5. Independent Variablea variable that can change in an experiment


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