GRADE 3 SCIENCE · CHAPTER 2
Observation & scientific inquiry
Study each lesson in order, or choose the idea you need today.
- Choose a book
- Choose a chapter
- Study a lesson
Scientific inquiry
Plan a fair comparison
Change one tested factor while keeping other relevant conditions alike.
AN EXAMPLE FROM THIS CHAPTER
To test whether light affects seedling growth, which factor should differ?
Show answer & explanation
the amount of light
Light is the factor named in the test question.
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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