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Grade 6 Physical & Chemical Changes Worksheet with Answers

Grade 6 (US) · Year 7 (UK) · Class 6 (India) · Science

Unit 7: Going FurtherAdvanced: Grade 7–8 PreviewNGSS MS-PS1-2Advanced

Telling physical changes from chemical changes and recognizing signs of a reaction. This free middle school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Physical & Chemical Changes

Grade 6 · Science

Score___ / 12

Name

Class

Date

Learning goal: Advanced: Grade 7–8 Preview · NGSS MS-PS1-2

Directions: This worksheet has 2 parts. Read the instructions at the start of each part.

RememberPhysical or chemical change?

Physicalsame substance, new formmelting, cutting, dissolvingChemicala new substance formsrusting, burning, bakingSigns of chemicalgas, colour change,light/heat, new smell
Part A

Physical or Chemical change? Tick one box for each.

PhysicalChemical change
1Ice melting
2Boiling water
3Crushing a can
4Dissolving sugar in tea
5Cutting paper
Part B

Answer each question. Use full sentences where you can.

  1. 6

    Name two signs of a chemical change.

  2. 7

    Physical or chemical change? Baking bread

  3. 8

    Why is dissolving salt in water a physical change?

  4. 9

    Physical or chemical change? Milk going sour

  5. 10

    Physical or chemical change? Wood burning

  6. 11

    Physical or chemical change? A firework exploding

  7. 12

    Physical or chemical change? Iron rusting

★ Challenge corner for fast finishers

Why does a spinning ice skater spin faster when she pulls her arms in?

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Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/science/6/phys_chem_changes

Answer key (click to show)
  1. 1.physical
  2. 2.physical
  3. 3.physical
  4. 4.physical
  5. 5.physical
  6. 6.gas bubbles, color change, new smell, light or heat, precipitate (any two)
  7. 7.chemical
  8. 8.no new substance forms; you can get the salt back by evaporation
  9. 9.chemical
  10. 10.chemical
  11. 11.chemical
  12. 12.chemical
  13. ★conservation of angular momentum (challenge corner)

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Guides for teaching Physical & Chemical Changes

Moon Phases Explained: Why the Moon Changes ShapeThe moon never stops being lit — we just see different amounts of its sunlit half. The eight phases, a lamp-and-ball demo, and the misconception almost everyone has.The Scientific Method for Kids: Independent, Dependent and Controlled VariablesWhat makes a test fair, how to spot each kind of variable, and a paper-towel experiment you can run at home or in class tomorrow.What Are the Common Core and NGSS Standards? A Parent's GuideWhat learning standards are, how to read a code like 3.NF.A.1 or MS-PS1-2, what each grade covers in Math, English and Science, and how to use them at home.

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