GRADE 3 SCIENCE · CHAPTER 1
Engineering & design
Study each lesson in order, or choose the idea you need today.
- Choose a book
- Choose a chapter
- Study a lesson
Engineering design
Use a design’s purpose and limits
Distinguish what a design must achieve from a limit it must respect.
AN EXAMPLE FROM THIS CHAPTER
A class designs a bridge. It must hold a 200 g toy and at most two sheets of card. Which test checks both requirements?
Show answer & explanation
Hold the toy using two or fewer sheets.
The test checks the desired result and the stated limit together.
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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