4th grade resources
Science blueprints (4-5)Investigation and Experimentation
Engineering Interact
Widgets
Invention Playhouse
Scales
Tracker
Colin's Coffee
Plant Force
Grow Alien Plants
Roller Coaster
More Brainteasers and Puzzles (See "Science Puzzles")
Planet 10
(explore the solar system and design a planet)
Robot Constructor
Pushes and pulls
Forces and movement
Forces in action
Friction
Simple machines - Edhead
Simple machines - Harcourt
WOW simple machines
Magnets and springs
Sounds and hearing
Science Lab (Choose "Sound")
WOW sound
EdHeads
Magic School Bus experiments
Science Fair Central
The Ultimate Science Fair Resource
Science spells