SECTION 10.2 Groundwater Erosion and Deposition SECTION 10.2 Groundwater Erosion and Deposition, Continued in Your Textbook, Read About Dissolution by Groundwater

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Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. CHAPTER td ud o otn atr Chapter10 Study GuideforContent Mastery Complete thecorrect word each statement with orwords. Date Class thechoice completes thatbest thestatement oranswers thequestion. Circle theletter of bygroundwater. read aboutdissolution In yourtextbook, SECTION Name 8. 7. 6. 5. 4. 3. 2. 1. c. b. a. limestone isthe A majorrole of inthe formation islto fbdokb cdcri rmitsi san . size are inlimestone significant formed by the of andsinkingstreams are saidto have sinks, sinkholes, Limestone with regions bedrock by ormoistsoilisa(n) acidicrain dissolution of otherscontain while underground streams , acave orby the direct A depression intheground causedby thecollapse of groundwater. of activity dissolving Most and lakes. Some caves are d. c. b. a. there must be In order forcaves inlimestone, to form d. c. b. a. statements thefollowing isNOT aboutgroundwater? true Which of d. c. b. a. dioxideCarbon andwater form d. reaction of water with limestone. water with reaction of dioxide calciumcarbonate. carbon with reaction of calciumcarbonate. dissolution andprecipitation of sinkholes present. limestone. groundwater percolating andjointsof through thecracks saturation. no zone of from surface streams. runoff precipitatesCalcium carbonate groundwater outwhen evaporates. groundwater when acidforms percolatesCarbonic material. through decaying organic mostlyH Groundwater ismadeupof Most groundwater contains someacid. calcium bicarbonate. underground limestone deposits. acid. carbonic precipitated calciumcarbonate. sinkholes. flooding of 10.2 10 Groundwater ErosionandDeposition . 2 os which iswhy itreadily dissolves limestone. O ions, STUDY GUIDEFORCONTENTMASTERY Earth Science:Geology, andtheUniverse theEnvironment, Earth 61 stalactite stalagmite dripstone column dripstone stalagmite stalactite Use below theterms to labelthephotograph. read aboutgroundwater deposits. In yourtextbook, CHAPTER 62 Date questions. Answer thefollowing Class SECTION Name 15. 14. 13. 12. 11. 10. 9. BC AB How doesawater softener change water? oriron? magnesium, calcium, What dowe callwater containing concentrations of high limestone formations? isfoundindripstone What kindof Explain how isformed. Conthephotograph Explain how isformed. Bonthephotograph Explain how isformed. A onthephotograph Chapter 10 10.2 Earth Science:Geology, andtheUniverse theEnvironment, Earth 10 Groundwater ErosionandDeposition, B A STUDY GUIDEFORCONTENTMASTERY continued C Study GuideforContent Mastery

Name Class Date Name Class Date Answer Pages CHAPTER 10 STUDY GUIDE FOR CONTENT MASTERY CHAPTER 10 STUDY GUIDE FOR CONTENT MASTERY

SECTION 10.2 Groundwater Erosion and Deposition SECTION 10.2 Groundwater Erosion and Deposition, continued In your textbook, read about dissolution by groundwater. In your textbook, read about groundwater deposits.

Earth Science:Geology, andtheUniverse theEnvironment, Earth Circle the letter of the choice that best completes the statement or answers the question. Use the terms below to label the photograph. 1. A major role in the formation of limestone is the stalactite stalagmite dripstone column a. dissolution and precipitation of calcium carbonate. b. reaction of carbon dioxide with calcium carbonate. c. reaction of water with limestone. B d. flooding of sinkholes.

2. Carbon dioxide and water form a. precipitated calcium carbonate. C b. carbonic acid. A c. underground limestone deposits. d. calcium bicarbonate. 9. ABstalagmite stalactite Cdripstone column 3. Which of the following statements is NOT true about groundwater? a. Most groundwater contains some acid. Answer the following questions.

b. Groundwater is made up of mostly H2O ions, which is why it readily dissolves limestone. 10. Explain how A on the photograph is formed. c. Carbonic acid forms when groundwater percolates through decaying organic material. A stalagmite is formed by water drops splashing to the floor of a cave. The drop d. Calcium carbonate precipitates out when groundwater evaporates. of water loses some carbon dioxide and deposits calcium carbonate. These 4. In order for caves to form in limestone, there must be deposits gradually build mound-shaped dripstone deposits. a. runoff from surface streams. b. no zone of saturation. 11. Explain how B on the photograph is formed. c. groundwater percolating through the cracks and joints of limestone. A stalactite is formed by dripping water. The drop of water on the ceiling of the d. sinkholes present. cave loses some carbon dioxide and deposits calcium carbonate. These deposits gradually form conical or cylindrical structures that hang from the ceiling. Complete each statement with the correct word or words.

5. Some caves are dry , while others contain underground streams 12. Explain how C on the photograph is formed. and lakes. A dripstone column is formed when stalactites and stalagmites grow together. 6. Most caves of significant size are formed in limestone by the Study GuideforContent Mastery dissolving activity of groundwater. 13. What kind of limestone is found in dripstone formations? 7. A depression in the ground caused by the collapse of a cave or by the direct travertine dissolution of bedrock by acidic rain or moist soil is a(n) sinkhole . 14. What do we call water containing high concentrations of calcium, magnesium, or iron? 8. Limestone regions with sinkholes, sinks, and sinking streams are said to have hard water karst topography . 15. How does a water softener change water? A water softener removes dissolved ions from hard water, changing it to soft water.

Study Guide for Content Mastery Chapter 10 Earth Science: Geology, the Environment, and the Universe 61 62 Chapter 10 Earth Science: Geology, the Environment, and the Universe Study Guide for Content Mastery