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Which Objects Are Magnetic?
Pre-K
Objective Compare and classify objects by observable physical properties. Materials Needed Mickey’s Magnet by Franklyn M. Branley and Eleanor K. Vaughan or What Makes a Magnet? by Franklyn M. Branley Magnets or Magnetic Wands Pipe Stems (cut into 1-or 2-inch pieces) Pom-Poms Variety of small magnetic objects (e.g., paper clips, nuts or bolts, etc.) Variety of small nonmagnetic objects (e.g., rubber bands, plastic counters, feathers, etc.) Clear, empty 2-liter plastic bottles (at least two) Several plastic shoe box–sized containers (one for each small group of students) Sand or dried beans Magnetic/Not Magnetic sorting mat Introduction Read aloud Mickey’s Magnet or What Makes a Magnet?
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Making Mountains: An Erosion Lesson
4th Grade
Objective Make observations and/or measurements to provide evidence of the effects of weathering or the rate of erosion by water, ice, wind, or vegetation. Materials Needed Erosion: Changing Earth’s Surface by Robin Koontz or Cracking Up: A Story About Erosion by Jacqui Bailey Observation sheet Rocks, gravel and sand Plastic or metal trays (one for each group) One-liter bottles of water (one for each group) Rulers or tape measures (one for each group) Introduction Read aloud Erosion: Changing Earth’s Surface by Robin Koontz or Cracking Up: A Story About Erosion by Jacqui Bailey to introduce students to the process of erosion and how it affects Earth and its landforms.
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