NGSS
1-LS3-1
3 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Grade 1 Science · Chapter 3 · Lesson 1
Young things grow into big things.
Grade 1 Science · Chapter 3 · Lesson 2
Look at one thing at a time.
Grade 1 Science · Chapter 3 · Lesson 4
The same pattern, everywhere you look.