Teach students how to identify when a new substance forms using
observable evidence. This TEKS-aligned resource makes chemical change
clear with practical examples and strong reasoning practice.

What’s Included

• Information Gap Exercise

• Short Answer Exercise

• Exit Tickets

Concepts Covered (TEKS 6.6E)

• Recognizing evidence of
  chemical change:

  • gas production

  • temperature change (thermal
    energy change)

  • precipitate formation

  • color change

• Distinguishing physical change
  vs chemical change

• Using evidence to justify
  conclusions about new substances

How It’s Useful

• Great for chemistry unit
  practice, lab analysis, and test prep

• Strengthens student
  explanations with evidence-based thinking

• Exit tickets provide quick
  formative assessment

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