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RAFTing the Air

Time Frame:
1 class period that runs 90 minutes.

Group Size:
Individual


 

Summary:
Student will write a RAFT assignment where they are a molecule in the atmosphere moving around Earth's surface. They will use information from objective 2 to describe their journey.

Main Curriculum Tie:
Science - Earth Science
Standard 3 Objective 1

Relate how energy from the Sun drives atmospheric processes and how atmospheric currents transport matter and transfer energy.

Materials:

  • student sheet (attached)
  • textbook
  • candle in a jar
  • vinegar
  • baking soda
  • writing computer lab (optional)

Attachments

Student Prior Knowledge:
Students should have some knowledge of climate and weather but extensive knowledge is not needed.

Instructional Procedures:

  1. Hook: Light the candle in the jar and ask students how long it will burn. If the lid is not placed on the jar, it will burn until the candle is gone. Mix some vinegar with baking soda in a beaker and let the carbon dioxide form. It is denser than the air and will stay in the beaker. Carefully, pour the CO2 (but not the liquid mixture) onto the candle in the jar. It should go out quickly. If it doesn't work the first time, use more vinegar and baking soda and hold your hand over the beaker to protect the gas from air currents in the room. Do it a second time only this time, become the voice of a CO2 molecule and tell of your journey from the baking soda to the beaker and then to the flame. Be as creative and scientific as you can.
  2. Tell student they are going to do the same thing only as a molecule in the atmosphere of Earth.
  3. Read the student sheet with students and give them time to write their stories. Allow them to peer grade one another's work before the final draft.
  4. Ask students to share their work and read it to the class. You will not have time for everyone to do this so just take volunteers.

Assessment Plan:
Scoring Guide:
See Rubric on student sheet attached.

Bibliography:
Lesson Design by Jordan School District Teachers and Staff.

Author:
Utah LessonPlans

Created Date :
Nov 05 2014 12:03 PM

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