LITTLE PLAY ORIGINAL STUDY BOOK

Grade 9 Science

3 chapters · 5 lessons. Read, work through an example, then try it yourself.

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  2. Choose a chapter
  3. Study a lesson

Chapters in this book

  1. Engineering & design1 lessonsCheck measurement evidence before a design decision
  2. Living things & ecosystems3 lessonsUse a simple inheritance model · Compare mitosis and meiosis in simplified models · Explain natural selection from population evidence
  3. Forces, energy & waves1 lessonsAccount for useful and transferred energy
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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