Introduction to Chemical Changes Exercise

Introduction to Chemical Changes

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Introduction to Chemical Changes

Discover what chemical changes are and how new substances form during these transformations.

Questions

  1. MultiChoice

    Which of the following is a chemical change?

  2. MultiChoice

    What is the key feature of a chemical change?

  3. MultiChoice

    Which observation indicates a chemical change has occurred?

  4. MultiChoice

    What type of change takes place when bread is toasted?

  5. MultiChoice

    Why is souring milk classified as a chemical change?

  6. MultiChoice

    Which everyday event involves a chemical change?

  7. MultiChoice

    When vinegar reacts with baking soda to form carbon dioxide bubbles, this is a:

  8. MultiChoice

    What evidence proves that wood burning is a chemical change?

  9. WordsBox

    A ____ reaction occurs when matter transforms into a ____ substance with different properties.

  10. WordsBox

    When iron ____ it combines with oxygen to form iron ____

  11. WordsBox

    The formation of ____ bubbles during a reaction is a clear sign of a ____ change.

  12. WordsBox

    Baking a ____ involves chemical changes that cannot be easily ____