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Reading Levels These books contain three developmentally appropriate reading levels for each grade span.

Low
Mid
High

Each level of the book conveys similar concepts, images, and vocabulary.

Life Cycles

© Eric Isselee/123RF

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.

Overview Resources

Unit Nonfiction Books

Life Cycles

low

mid

high

Lesson Resources

Process Activities

Process Activity Materials Lists - All 3-4 units

Human Life Cycle Sequence

Life Cycles of Edible Plants

Mealworm Life Cycles

FOCUS Books

FOCUS Book Teacher's Guide | Projectable

The Mermaid's Purse
low

Life in the Pouch
mid

Maggots, Grubs, and Nymphs
mid

Pollywogs and Friends
mid

Veligers and Polyps
high

Supporting Materials

Investigation Packs

I.Files

Frogs
low

Elephants
mid

Moths
mid

Parrots
mid

Trees
mid

Barnacles
high

Mystery File

Dragonfly Naiads

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Science Fair Project Ideas

Debates

Debate Teacher's Guide Intermediate (3-6)

Adopting a Pet

Science Videos

Video Teaching Guide

Bees' Disease

New

Blue Butterfly Life Cycle

New

Butterfly Life Cycles

Comparing Life Cycles

Moms Who Listen

New

Plant Life Cycles

Career Files

Fish Hatchery Worker; Dog Breeder; Seed Farmer

Quick Reads

Extreme Life Cycles
low

Extreme Life Cycles
mid

Extreme Life Cycles
high

Green Sea Turtles
low

Green Sea Turtles
mid

Green Sea Turtles
high

Honeybees
low

Honeybees
mid

Honeybees
high

Maple Seeds
low

Maple Seeds
mid

Maple Seeds
high

Mendel's Pea Plants
low

Mendel's Pea Plants
mid

Mendel's Pea Plants
high

Salmon
low

Salmon
mid

Salmon
high

Reading A-Z Books

Learning A-Z Connections - Life Cycles

The Mighty Saguaro Cactus - Level U

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All Intermediate Nonfiction Graphic Organizers

Venn Diagram

Word Smart

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Nonfiction Retelling Rubric

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Science Diagram Teacher's Guide

Life Cycle of a Butterfly

Life Cycle of a Frog

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Complete Life Cycles Game Pack

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Vocabulary Cards

Life Cycles

Word Work

Crossword; Word Search; Matching

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Double-Sided

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