Physical and chemical changes are central to Grade 9 Science when students must decide whether a material has changed its identity. This worksheet focuses on matter and chemical change, helping students distinguish physical changes from chemical changes by looking for evidence of new substances.

🔬 What Students Explore

Students examine how melting, freezing, and crushing can change the phase or form of a material without changing the substances present. They use conservation of identity language to describe what happens during a physical change and contrast this with a chemical change in which a new substance forms.

📋 What Students Practise

The resource combines multiple-choice questions, true-or-false statements, short-answer responses, a reading passage, matching, a cloze passage, an essay response, and a “Did You Know?” section. This gives students opportunities to recognize evidence, explain physical changes, apply key vocabulary, and communicate their reasoning in different ways.

📦 Included for Teachers and Students

• ✅ Student worksheet covering physical and chemical changes
• ✅ Separate PDF answer key
• ✅ Student Notes & Lesson Summary supplement
• ✅ Separate PDF Teacher Guide with Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes

🏫 Classroom Use

Use the worksheet as guided class practice after instruction on matter and chemical change, as independent work for checking conceptual understanding, or as a review resource before further assessment. The included notes and lesson summary provide students with additional support, while the Teacher Guide gives educators practical prompts for discussion and addresses common mistakes students may make when distinguishing physical from chemical changes.

🎯 Alberta Science Support

The resource is identified with the Alberta framework and keeps the focus on observable evidence and the identity of substances. It is designed to reinforce the distinction between changing a material’s form or phase and producing a new substance.