Kids Login

Life Science

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

Print Unit Guide PDF Project Unit Guide
Unit Guide
Print Unit Resource List PDF Project Unit Resource List
Unit Resource List
Print NGSS Correlations Chart PDF Project NGSS Correlations Chart
NGSS Correlations Chart
Print Life Cycles Unit Roadmaps PDF Project Life Cycles Unit Roadmaps
Life Cycles Unit Roadmaps

Unit Nonfiction Books

Book cover shows a frog�s life cycle, from egg to tadpole to frog.

Life Cycles

low

Print Single-sided book PDF Project Single-sided book
Single-sided book
Print Double-sided book PDF
Double-sided book
Print Accessible book PDF
Accessible book
Print Book Quiz PDF Project Book Quiz
Book Quiz
Listen to Life Cycles Read Life Cycles See the Quiz for Life Cycles
Digital

mid

Print Single-sided book PDF Project Single-sided book
Single-sided book
Print Double-sided book PDF
Double-sided book
Print Accessible book PDF
Accessible book
Print Book Quiz PDF Project Book Quiz
Book Quiz
Listen to Life Cycles Read Life Cycles See the Quiz for Life Cycles
Digital

high

Print Single-sided book PDF Project Single-sided book
Single-sided book
Print Double-sided book PDF
Double-sided book
Print Accessible book PDF
Accessible book
Print Book Quiz PDF Project Book Quiz
Book Quiz
Listen to Life Cycles Read Life Cycles See the Quiz for Life Cycles
Digital

Lesson Resources

Print Nonfiction Book Teacher's Guide PDF Project Nonfiction Book Teacher's Guide
Nonfiction Book Teacher's Guide
Print Discussion Cards PDF Project Discussion Cards
Discussion Cards
Print Blank Discussion Cards PDF Project Blank Discussion Cards
Blank Discussion Cards

Process Activities

Print Process Activity Materials Lists - All 3-4 units PDF Project Process Activity Materials Lists - All 3-4 units
Process Activity Materials Lists - All 3-4 units

Human Life Cycle Sequence

Print Human Life Cycle Sequence PDF Project Human Life Cycle Sequence

Inherited Traits

Print Inherited Traits PDF Project Inherited Traits

Life Cycles of Edible Plants

Print Life Cycles of Edible Plants PDF Project Life Cycles of Edible Plants

Mealworm Life Cycles

Print Mealworm Life Cycles PDF Project Mealworm Life Cycles

FOCUS Books

Print FOCUS Book Teacher's Guide PDF Project
FOCUS Book Teacher's Guide

The Mermaid's Purse

low

Print The Mermaid's Purse PDF Project The Mermaid's Purse
Single-sided
Print The Mermaid's Purse Double-sided PDF
Double-sided
Print Teaching Tips PDF Project Teaching Tips
Teaching Tips
Listen to The Mermaid's Purse Read The Mermaid's Purse See the Quiz for The Mermaid's Purse
Digital

Inheriting Stripes

mid

Print Inheriting Stripes PDF Project Inheriting Stripes
Single-sided
Print Inheriting Stripes Double-sided PDF
Double-sided
Print Teaching Tips PDF Project Teaching Tips
Teaching Tips
Listen to Inheriting Stripes Read Inheriting Stripes See the Quiz for Inheriting Stripes
Digital

Life in the Pouch

mid

Print Life in the Pouch PDF Project Life in the Pouch
Single-sided
Print Life in the Pouch Double-sided PDF
Double-sided
Print Teaching Tips PDF Project Teaching Tips
Teaching Tips
Listen to Life in the Pouch Read Life in the Pouch See the Quiz for Life in the Pouch
Digital

Maggots, Grubs, and Nymphs

mid

Print Maggots, Grubs, and Nymphs PDF Project Maggots, Grubs, and Nymphs
Single-sided
Print Maggots, Grubs, and Nymphs Double-sided PDF
Double-sided
Print Teaching Tips PDF Project Teaching Tips
Teaching Tips
Listen to Maggots, Grubs, and Nymphs Read Maggots, Grubs, and Nymphs See the Quiz for Maggots, Grubs, and Nymphs
Digital

Pollywogs and Friends

mid

Print Pollywogs and Friends PDF Project Pollywogs and Friends
Single-sided
Print Pollywogs and Friends Double-sided PDF
Double-sided
Print Teaching Tips PDF Project Teaching Tips
Teaching Tips
Listen to Pollywogs and Friends Read Pollywogs and Friends See the Quiz for Pollywogs and Friends
Digital

Hot and Cold Reptiles

high

Print Hot and Cold Reptiles PDF Project Hot and Cold Reptiles
Single-sided
Print Hot and Cold Reptiles Double-sided PDF
Double-sided
Print Teaching Tips PDF Project Teaching Tips
Teaching Tips
Listen to Hot and Cold Reptiles Read Hot and Cold Reptiles See the Quiz for Hot and Cold Reptiles
Digital

Veligers and Polyps

high

Print Veligers and Polyps PDF Project Veligers and Polyps
Single-sided
Print Veligers and Polyps Double-sided PDF
Double-sided
Print Teaching Tips PDF Project Teaching Tips
Teaching Tips
Listen to Veligers and Polyps Read Veligers and Polyps See the Quiz for Veligers and Polyps
Digital

Supporting Materials

Investigation Packs

Adults

Print Complete Investigation Pack PDF
Complete Investigation Pack
Print Investigation Pack Teacher's Guide PDF Project Investigation Pack Teacher's Guide
Investigation Pack Teacher's Guide
Print I.File Response Sheet PDF Project I.File Response Sheet
I.File Response Sheet
Print I. Files Teaching Tips PDF Project I. Files Teaching Tips
I. Files Teaching Tips

I.Files

Frogs

low

Print Frogs PDF Project Frogs
Preview Frogs
Digital

Elephants

mid

Print Elephants PDF Project Elephants
Preview Elephants
Digital

Moths

mid

Print Moths PDF Project Moths
Preview Moths
Digital

Parrots

mid

Print Parrots PDF Project Parrots
Preview Parrots
Digital

Trees

mid

Print Trees PDF Project Trees
Preview Trees
Digital

Barnacles

high

Print Barnacles PDF Project Barnacles
Preview Barnacles
Digital

Mystery File

Dragonfly Naiads

Science Fair Resources

Print Science Fair Teacher's Guide (3-4) PDF Project Science Fair Teacher's Guide (3-4)
Science Fair Teacher's Guide (3-4)
Print Science Fair Student Guide PDF Project Science Fair Student Guide
Science Fair Student Guide
Print Science Fair Rubric PDF Project Science Fair Rubric
Science Fair Rubric

Science Fair Project Ideas

Print Science Fair Project Ideas PDF Project Science Fair Project Ideas

Debates

Print Debate Teacher's Guide Intermediate (3-6) PDF Project Debate Teacher's Guide Intermediate (3-6)
Debate Teacher's Guide Intermediate (3-6)

Adopting a Pet

Print Adopting a Pet PDF Project Adopting a Pet

Science Videos

Print Video Teaching Guide PDF Project Video Teaching Guide
Video Teaching Guide

Bees' Disease

Print discussion questions for Bees' Disease PDF
Discussion Questions
Preview Bees' Disease
Video

Blue Butterfly Life Cycle

Print discussion questions for Blue Butterfly Life Cycle PDF
Discussion Questions
Preview Blue Butterfly Life Cycle
Video

Butterfly Life Cycles

Print discussion questions for Butterfly Life Cycles PDF
Discussion Questions
Print Teaching Tips for Butterfly Life Cycles PDF Project Teaching Tips for Butterfly Life Cycles
Teaching Tips
Preview Butterfly Life Cycles
Video

Comparing Life Cycles

Print discussion questions for Comparing Life Cycles PDF
Discussion Questions
Preview Comparing Life Cycles
Video

Moms Who Listen

Print discussion questions for Moms Who Listen PDF
Discussion Questions
Preview Moms Who Listen
Video

Plant Life Cycles

Print discussion questions for Plant Life Cycles PDF
Discussion Questions
Preview Plant Life Cycles
Video

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

Print Honeybees PDF Project Honeybees
Preview Honeybees
Digital

Honeybees

mid

Print Honeybees PDF Project Honeybees
Preview Honeybees
Digital

Honeybees

high

Print Honeybees PDF Project Honeybees
Preview Honeybees
Digital

Maple Seeds

low

Print Maple Seeds PDF Project Maple Seeds
Preview Maple Seeds
Digital

Maple Seeds

mid

Print Maple Seeds PDF Project Maple Seeds
Preview Maple Seeds
Digital

Maple Seeds

high

Print Maple Seeds PDF Project Maple Seeds
Preview Maple Seeds
Digital

Mendel's Pea Plants

low

Mendel's Pea Plants

mid

Mendel's Pea Plants

high

Salmon

low

Print Salmon PDF Project Salmon
Preview Salmon
Digital

Salmon

mid

Print Salmon PDF Project Salmon
Preview Salmon
Digital

Salmon

high

Print Salmon PDF Project Salmon
Preview Salmon
Digital

Reading A-Z Books

The Mighty Saguaro Cactus

Print The Mighty Saguaro Cactus PDF Project The Mighty Saguaro Cactus
Single-sided
Print The Mighty Saguaro Cactus PDF
Double-sided

Graphic Organizers

Print All Intermediate Nonfiction Graphic Organizers PDF Project All Intermediate Nonfiction Graphic Organizers
All Intermediate Nonfiction Graphic Organizers

Venn Diagram

Print Venn Diagram PDF Project Venn Diagram

Word Smart

Print Word Smart PDF Project Word Smart

Retelling Rubrics

Nonfiction Retelling Rubric

Print Nonfiction Retelling Rubric PDF Project Nonfiction Retelling Rubric

Science Diagrams

Print Science Diagram Teacher's Guide PDF Project Science Diagram Teacher's Guide
Science Diagram Teacher's Guide

Life Cycle of a Butterfly

Life Cycle of a Dandelion

Life Cycle of a Frog

Game Packs

Print Game Pack Guide PDF Project Game Pack Guide
Game Pack Guide
Print Blank Image Cards PDF Project Blank Image Cards
Blank Image Cards
Print Game Boards PDF Project Game Boards
Game Boards
Print Word Sort Placemat PDF Project Word Sort Placemat
Word Sort Placemat
Print Wordo Board PDF Project Wordo Board
Wordo Board

Complete Life Cycles Game Pack

Print Complete Life Cycles Game Pack PDF Project Complete Life Cycles Game Pack

Image Cards

Print Image Cards PDF Project Image Cards

Vocabulary Cards

Print Vocabulary Cards PDF Project Vocabulary Cards

Vocabulary Cards

Life Cycles

Print Life Cycles PDF Project Life Cycles

Word Work

Crossword; Word Search; Matching

Print Crossword; Word Search; Matching PDF Project Crossword; Word Search; Matching

Book Assembly

Single-Sided

Watch Video
Download Instructions PDF

Double-Sided

Watch Video
Download Instructions PDF