Computer coding:
https://code.org/
https://scratch.mit.edu/
Cells:
http://www.cellsalive.com/
Simple machines
http://pbskids.org/zoom/games/goldburgertogo/
http://engineering-games.net/logic-games/76/tinker-ball
Laws of motion:
http://www.sciencechannel.com/games-and-interactives/newtons-laws-of-motion-interactive/
Science Fair:
https://sciencebob.com/
http://www.sciencebuddies.org/science-fair-projects/project_scientific_method.shtml#overviewofthescientificmethod
Religion 5th grade:
http://www.bestchurch.net/Level-5-Lessons-1---25.html
Make a book:
http://www.storyjumper.com/
Extra Help:
http://www.ck12.org/student/
https://www.youtube.com/user/tdewitt451
https://www.khanacademy.org/