NGSS
4-LS1-1
4 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Grade 4 Science · Chapter 5 · Lesson 1
Plant Structures and Their Jobs
Every part is there for a reason.
Grade 4 Science · Chapter 5 · Lesson 2
Animal Structures and Their Jobs
Inside counts as much as outside.
Grade 4 Science · Chapter 5 · Lesson 4
Building a Model of a Structure
A model shows one thing well and gets the rest wrong.