Physical Science |
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Making Slime |
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Standard
Statement: Content
Objectives: Know the difference between chemical and physical properties and the difference between chemical and physical change. Process
Objectives: 1. Observe that substances can react to produce other substances with different chemical and physical properties. 2. Recognize the difference between a chemical and physical change. Assessment
Strategies: Writing to respond to procedure, step 7 Procedures: 1. In a large plastic cup, mix 4 oz. Elmer’s glue and 4 oz. warm water. 2. Add 4 drops of food coloring. 3. In a small plastic cup, mix 1 tsp. borax with 3 oz. of warm water. 4. Pour the borax mixture into the glue mixture and stir with a spoon until well blended. 5. Use your hands to mix completely. 6. Store in an airtight zip-lock sandwich bag. 7. Discuss notable physical and chemical changes that take place each time a new ingredient is added. 8. Describe slime’s appearance and feel. 9. Suggest clever uses for this new product. 10. NOTE: If slime is too thick, add small amount of water until the right consistency is reached. If it is too watery, leave it out in the air until some of the liquid evaporates. This mixture cleans up well and vacuums off carpets easily.
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Suggested
Level: Standard
Category: Materials: Warm water Food coloring 20 Mule Team Borax (secret powder) Large plastic Solo cups (16 oz.) Small plastic Solo cups (9 oz.) or measuring cups Measuring and mixing spoons Zip-lock sandwich bags Instructional
Strategies: Small group exploration Inquiry learning Related
Concepts: Predict identity of secret powder Read: Bartholomew and the Oobleck by Dr. Seuss
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