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Exploring Physical and Chemical Changes in Everyday Materials

This investigation focuses on understanding the differences between physical and chemical changes using familiar examples such as water, ice, and water vapor. Students will journal their observations on these states of matter and their transformations. Activities include examining torn paper, uncooked versus boiled eggs, and bread versus toast. Each experiment aims to identify similarities, differences, and the nature of the changes observed. The goal is to enhance students' comprehension of physical and chemical changes and relate these concepts to real-world instances.

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Exploring Physical and Chemical Changes in Everyday Materials

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  1. Physical vs. Chemical Change Investigation and Research

  2. Water

  3. Ice

  4. Water Vapor

  5. What do you see? • Write in your Journal. • Describe water. • Describe Ice. • Describe water vapor.

  6. Paper

  7. Torn Paper

  8. Write about it. • Write in your Journal about the following: • Describe the Paper. • Describe the Paper after it has been torn. • What has changed about the paper?

  9. Video • http://www.youtube.com/watch?v=3H_NwBVXv1M&feature=youtu.be

  10. Raw vs. Boiled Egg

  11. Write about it. • Write in your journal about the following: • How are the eggs similar? • How are they different? • What caused the change? • What kind of change has occurred?

  12. Bread vs. Toast

  13. Write about it. • Write in your journal about the following. • How is the bread similar to the toast? • How is the bread different from the toast? • What has changed? • What caused the change? • What kind of change has occurred?

  14. Write about it. • Which were examples of chemical changes? • Which were examples of physical changes? • What caused the changes? • Where else do you see this in the world?

  15. Standards • S5P2. Students will explain the difference between a physical change and a chemical change. • a. Investigate physical changes by separating mixtures and manipulating (cutting, tearing, folding) paper to demonstrate examples of physical change. • b. Recognize that the changes in state of water (water vapor/steam, liquid, ice) are due to temperature differences and are examples of physical change. • c. Investigate the properties of a substance before, during, and after a chemical reaction to find evidence of change.

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