🔬 Part 1: Understanding Changes

🧪 Part 2: Identifying Changes

a) Melting chocolate:

b) Mixing vinegar and baking soda (produces fizzing):

c) Tearing a piece of paper:

d) Burning wood in a fireplace:

e) Freezing water into ice:

f) Iron rusting:

📝 Part 3: Signs of Chemical Changes

🔍 Part 4: Experiment Observations

🎯 Part 5: Fill in the Blanks

Word Bank: reversible, new substance, physical, chemical, properties, state

A _____________ change alters the appearance or _____________ of matter without creating a _____________ _____________. These changes are usually _____________.

A _____________ change creates one or more new substances with different _____________ from the original materials.

🌟 Part 6: Real-World Applications

🤔 Part 7: Critical Thinking