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Authentic Learning
shared computer access
Adoption Level
Can Acids and Bases Remedy the Body?
Grade Level: 6-8
Objectives
- Determine how an understanding of acids and bases relates to the health of a living organism system.
- Determine the effectiveness of various antacids or home remedies on an acidic stomach.
- Determine why some analgesics cause additional stomach upset and are not recommended when pain persists.
- Evaluate the cost effectiveness of one form (or brand) of antacid/analgesic over another procedure.
Procedure
- Prepare a "sick" stomach by mixing 1part vinegar to 7 parts of distilled water. 240ml of the mixture is enough for each of 4 groups.
- Test the effects of each antacid tablet/water mixture on the stomach solution. Use 2 tablets per 240 ml of water for 6 different tests. Have students use the computer interfaced probeware to record the actual ph levels of the stomach, treatment solutions and post-treated stomach. Record data in a table of their creation. Results will automatically load onto DataStudio for graphing.
- Use the graphing option in DataStudio to compare and analyze the data across groups.
- Students will complete the same tests using the liquid antacids on the stomach solution.
- Use the graphing option in DataStudio to compare results across groups. Compare the liquid results to those of the tablets.
- Students will test the effects of analgesics upon a "normal" stomach. Use plain distilled water for the normal stomach.
- Use DataStudio to compare results across groups.
- Students will test unlabeled home remedy mixtures (i.e. lemon juice/water, ginger ale, milk, baking soda/water, and flour/water).
- Use DataStudio to compare results across groups.
Sunshine State Standards
- SC.A.1.3.5
- SC.H.3.3.7
- MA.B.2.3.1
- MA.B.4.3.2
NETS Profiles for Technology Literate Students
- Use content-specific tools, software, and simulations (e.g., environmental probes, graphing calculators, exploratory environments, Web tools) to support learning and research.
- Select and use appropriate tools and technology resources to accomplish a variety of tasks and solve problems.
Materials
- A word processing program such as Microsoft Word or Appleworks.
- DataStudio software
- Vinegar
- Distilled Water
- Beakers (250 ml)
- Fleaker (1000ml)
- Stirring rods
- Mortar/pestle
- Pasco Ph Probe
- Pasco Explorer
- Computer
- Pepto Bismol (tabs)
- Maalox (tabs)
- Alka Selter
- Tums (tabs)
- Generic (tabs)
- Rolaids (tabs)
- Bayer Aspirin
- Lemon Juice
- Baking Soda
- Bayer (tabs)
- Riopan (lq)
- Maalox (lq)
- Pepto Bismol (lq)
- Generic (lq)
- Generic Aspirin
- Milk
- Ginger Ale
Alternatives/Extensions
- Have students replace other words with clip art.
- Have students write stories of their own for their partners.
- Have students print their stories or put them on a web site.
FCIT > Matrix Home > authentic learning, adoption level, shared access