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Life Cycles
All living things go through changes as they grow and develop. Although individual organisms die, new ones replace them, ensuring the survival of the species. During its life cycle, an organism goes through physical changes that allow it to reach adulthood and produce new organisms. Since these changes are common within a species, they can be grouped into stages of development. The unit Life Cycles addresses the life cycles of plants and animals, including humans.
Unit Nonfiction Books

Life Cycles
low- Single-sided book
- Double-sided book
- Book Quiz
- Digital
- Single-sided book
- Double-sided book
- Book Quiz
- Digital
- Single-sided book
- Double-sided book
- Book Quiz
- Digital
Lesson Resources
- Nonfiction Book Teacher's Guide
- Discussion Cards
- Blank Discussion Cards
Process Activities
FOCUS Books

The Mermaid's Purse
low- Single-sided
- Double-sided
- Teaching Tips
- Digital

Inheriting Stripes
mid- Single-sided
- Double-sided
- Teaching Tips
- Digital

Life in the Pouch
mid- Single-sided
- Double-sided
- Teaching Tips
- Digital

Maggots, Grubs, and Nymphs
mid- Single-sided
- Double-sided
- Teaching Tips
-
Listen to Maggots, Grubs, and Nymphs Read Maggots, Grubs, and Nymphs See the Quiz for Maggots, Grubs, and NymphsDigital

Pollywogs and Friends
mid- Single-sided
- Double-sided
- Teaching Tips
- Digital

Hot and Cold Reptiles
high- Single-sided
- Double-sided
- Teaching Tips
- Digital

Veligers and Polyps
high- Single-sided
- Double-sided
- Teaching Tips
- Digital
Supporting Materials
Investigation Packs
Adults
- Complete Investigation Pack
- Investigation Pack Teacher's Guide
- I.File Response Sheet
- I. Files Teaching Tips
I.Files






Mystery File

Dragonfly Naiads
- Digital
Science Fair Resources
Science Videos

Bees' Disease
- Discussion Questions
- Video

Blue Butterfly Life Cycle
- Discussion Questions
- Video

Butterfly Life Cycles
- Discussion Questions
- Teaching Tips
- Video

Comparing Life Cycles
- Discussion Questions
- Video

Moms Who Listen
- Discussion Questions
- Video

Plant Life Cycles
- Discussion Questions
- Video
Career Files

Fish Hatchery Worker; Dog Breeder; Seed Farmer
- Digital
Quick Reads


















Reading A-Z Books
Science Diagrams

Life Cycle of a Butterfly
- Digital

Life Cycle of a Dandelion
- Digital

Life Cycle of a Frog
- Digital
Game Packs