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Physical Changes and Chemical Changes

This educational resource from Mrs. Mitchell's 4th-grade class explores the differences between physical and chemical changes. It highlights the three types of physical changes: changes in size or shape, position or texture, and state. Additionally, it explains how heating or cooling can induce changes between solid, liquid, and gas states. The lesson also covers chemical changes, defined as processes that create new matter with different properties, such as tarnishing and rusting, emphasizing both beneficial and harmful examples.

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Physical Changes and Chemical Changes

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  1. Physical Changes and Chemical Changes Zoe 4th Grade Mrs. Mitchell

  2. Physical Change

  3. There are 3 kinds of physical changes: • 1. A change in size or shape • 2. A change in position or texture • 3. A change in state

  4. Change in size or shape:

  5. Change in position or texture

  6. To change from a solid, to a liquid, to a gas, add heat.

  7. Change of State

  8. To change from a gas to a liquid, to a solid, take away heat.

  9. Chemical Changes • A change that produces new matter with different properties from the original matter.

  10. An example of a chemical change

  11. Tarnish is an annoying chemical change

  12. Name a beneficial chemical change.

  13. Rust is a harmful chemical change.

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