Earth

• Rocks and Minerals Web Quest
• University of Illinois Extension: Soil Types

• Project Clean Air

• Rockhound Homepage

•  Cool Science

• Science Monster

• FEMA for Kids: All about Natural Disasters

• Smog City

• Kids  Astronomy
• The Space Place
• Astronomy for Kids
• Virtual Solar System
• The Ten Best of the Nine Planets
• Solar System Activities
• Space.com  

• Scholastic Weather Watch

• Interactive Weather Maker

• Check the Weather

• Shadows

• Solar System Web-Quest

• Gamequarium

• Recycle for Kids  

• Weather

•  Maker

• Planet Webquest  

• Water Cycle E-Sheet

• Water Cycle Droplet Game

• Solar System Scavenger Hunt - Third Grade

•  NASA - Students K-4

• FEMA FOR KIDS: VOLCANOES

• General Facts About Volcanoes | Scholastic.com

• Weather Wiz Kids weather information for kids

• Volcanoes Facts- Dialogue for Kids (Idaho Public Television)

• Tornadoes & Thunderstorms

• Tornado, hurricane, blizzard facts

• Kidinfo.com - Your Guide to Information about the Weather and Weather Resources

• Stars

Life

• Search for Your Favorite Animals -- National Geographic Kids

• Life Cycle WebQuest 
• Hinterland Who's Who: Mammal Fact Sheets
• Hinterland  Who's Who: Bird Fact Sheets
• Food Chain
• Ranger Rick Food Webs
• Enchanted Learning:Butterfly
• Enchanted Learning: Frog
• Amphibians
• Something Froggy 
• Fish Food: Food Chain Game
• Types of Animals
• Switcharoo Zoo 
• Insect Scavenger Hunt
• Secrets of the Marsh
• Kratts' Creatures

• Enchanted Learning

•  Butterfly Life Cycle 

• Amphibian Fact Sheets

• Online Assessments for Unit A

• BBC: Living Things and their Environments
• Who Eats What?: Kidport
• Food Chains
• Kidport Food Chain
• Chain Reaction
• What is a Herbivore?
• What is an Omnivore?
• What is Carnivore?
• Unit B Online Assessments
• Animal Adaptations: E-Safari 
• Animal Adaptation Quiz
• Endangered Animals WebQuest
• Missouri List of Threatened and Endangered Species
• Parts Is Parts Webquest
• Life Cycle Webquest
• Who Eats Whom?
• Gamequarium
• The Life Cycle of Plants
• Jellyfish Life Cycle
• The Great Plant Escape
• Monarch Butterflies
• Mammals Activity
• Exercise is Cool  

• Animal Games

• Penguin Slide Show

• Arctic Animals WebQuest

• Recycle City

• Kids' Planet ESPECIES Animal Fact Sheets

• Defenders of Wildlife - Kids' Planet

• San Diego Zoo's Animal Bytes

• Insect Investigators WebQuest

• Biomes - Geography For Kids - By KidsGeo.com

Online Zoo Web Cams

• Animal Web Cams at the National Zoo - National Zoo| FONZ

• San Diego Zoo

• Minnesota Zoo

• The Toledo Zoo - Animal Web Cams

• Zoo Webcams - Online Web Cameras

Physical

• Simple Machine Game

• Bird Tools 

• Simple Machine Examples

• Design a Roller Coaster!

• What is Matter?
• States of Matter
• Solid, Liquid, or Gas? 
• Conductors and Insulators

• Electricity Webquest

• Conductors and Insulators

• Kidport: Energy and Matter 

• Music to Our Ears
• Underwater Sounds
• Sound Waves
• Why Files: States of Matter
•  Fact Sheet
• Circuit Activity
• Light Activity
• Light Test
• Sound Activity
• Sound Fact Sheet
• Sound Test (Interactive)
• Simple Machines WebQuest
• Gamequarium
•    Edheads - Simple Machines Activities
•  Goldburger To Go | PBS Kids
• Quia - (6) SOL 6.3 Kinetic vs Potential Millionaire Game
• The Water Cycle

• Water Droplet Game