Physical Science · Matter and Its Properties
Material Change Patterns: What Stays the Same?
Compare paper, foil, and sponge before and after folding, tearing, bending, or wetting to describe observable properties and distinguish a changed object from a completely new material.

Lesson plan
Material Change Patterns: What Stays the Same?
A step-by-step guide to help you teach this lesson.
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Lesson overview
What students will learn
- I can describe observable properties before and after a change.
- I can tell when an object changed shape or size but is still made of the same material.
Key science ideas
- Folding, bending, or tearing can change an object's shape or size.
- A torn paper strip is still paper even though the pieces are smaller.
- Wetting paper adds water and may change its flexibility or strength during the test.
Lesson at a glance
- Grade 2
- 45 min
- ~10 min prep
- 7 materials
What’s included
- Lesson Plan
- Investigation
- Teacher Slides
- Printable Worksheet
- Teacher Answer Key
- Interactive Activity
- Vocabulary