Kids love Science! While most kids prefer for it to be hands on, sometimes that's not always available.
There are many ways to still get Science knowledge and learning without the setup and cleanup of materials, etc.
Below are a few links to many fun online Science games for elementary and PreK children of all ages!
I hope they are useful and fun! Enjoy!
Turtle Diary: Science
Learn 4 Good: Science Games for Kids
Primary Games: Science
Kidopo: Science Games
EdHeads: Simple Machines