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Science Lesson Kit · Student Worksheet

Independent Product Evidence Brief

New case: a wooden ruler is cut from wood, while a reusable synthetic cord is made after chemical processing of resource-derived inputs. Consider how processes and evidence differ.

Grade 6

Name:

Date:

  1. 1.

    Which operation actually created a synthetic material? Name two pieces of evidence.

    Original Grade 6 synthetic materials illustration: worksheet source
  2. 2.

    A factory melts an existing polymer and molds it into a case. Does molding alone show that a new substance was synthesized?

    • Yes, every factory makes new substances
    • Not necessarily: the polymer may only be reshaped
    • Yes, any heating is chemical synthesis
  3. 3.

    Draw and label a general resource-to-product chain. Include a chemical transformation, but do not propose or carry out a chemical recipe.

    Original Grade 6 synthetic materials illustration: worksheet model

    Draw here

  4. 4.

    Explain why the statement 'synthetic means harmful' needs more evidence.

  5. 5.

    Fictional cords A and B last 20 and 50 uses. List two other kinds of evidence needed before choosing.