NGSS
5-ESS3-1
3 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Grade 5 Science · Chapter 6 · Lesson 1
People are part of the biosphere too.
Grade 5 Science · Chapter 6 · Lesson 2
Choosing Between Two Solutions
The biggest saving is not always the best one.
Grade 5 Science · Chapter 6 · Lesson 3
Say what to do, and show the arithmetic.