Physical Science · Matter
Physical & Chemical Changes
Compare a familiar physical change with evidence from a safe mixing investigation. Record before-and-after properties, use more than one observation, and make a careful claim about whether new substances formed.
Lesson plan
Physical & Chemical Changes
A step-by-step guide to help you teach this lesson.
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Lesson overview
What students will learn
- I can compare properties before and after a change and separate observations from conclusions.
- I can carry out a fair mixing investigation by keeping important conditions consistent and recording evidence.
Key science ideas
- A physical change can alter size, shape, or state while the substance remains the same kind of matter.
- A chemical change produces one or more new substances.
- Useful evidence can include gas production, an unexpected temperature change, formation of a solid, or other changes in properties.
Lesson at a glance
- Grade 5
- 55 min
- ~12 min prep
- 5-PS1-4
- 10 materials
What’s included
- Lesson Plan
- Investigation
- Teacher Slides
- Printable Worksheet
- Teacher Answer Key
- Interactive Activity
- Vocabulary