GRADE 6 SCIENCE · CHAPTER 2
Matter & chemical change
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Matter models
Use a particle model of matter
Connect a stated particle model with shape, volume and diffusion observations.
Matter properties
Calculate density from mass and volume
Calculate density with consistent units and distinguish it from total mass.
AN EXAMPLE FROM THIS CHAPTER
Model S has particles close together, vibrating around fixed positions. Which behavior best matches this solid model?
Show answer & explanation
It keeps a definite shape.
Fixed relative positions explain the definite shape; vibration is still motion.
Curriculum & source notes
These are original Little Play study books organized around U.S. school topics. The official curriculum references below guide topic scope and progression. Coverage is selected, not a complete curriculum or a verified match to every state standard. They are not copies of a publisher’s textbook. Check your school’s syllabus and book edition.
High-school courses can be taken in different years. Choose the topic that matches the student’s current course.
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