Science Games

I have to baby sit these two kids.
One is a 5 year old girl.
And the other is a very mature (likes science and rocks and stuff) 8 year old boy.

What are some games I can play with them together? Or seperat?

I recently took the ACT just to try it out, and my dad wants me to have more knowledge of math and science.So are there any games out there that teach you these subjects?I know Big Brain Academy helps, but it only trains.I need on that teaches. Thanks

I think the game is call edisons museum but I don’t remember but it had a little blond kid named edison and the game was about science. Is that the name or is something else?? can anyone help please!!!
One of the mini games involved shooting a rock video… I think

http://us.i1.yimg.com/videogames.yahoo.com/feature/video-games-turn-kids-into-killers-not-so-says-new-book/1212550

i have a cousin who is 7 years old, she likes Dora the explorer and stuff like that, little kid cartoons, what are some good educational games to buy her for the PC that have DOra the explorer as a character or any other popular cartoon character, i want her to enjoy the games but at the same time learn, whether it be spelling,reading, math etc.

Thanks in Advance

Price range 10-40 dollars

I work for an after school program for kids with diabilities and most of the kids are 8-13 years old. Our current them is plants and nature. What are some ideas for an outdoor activity/game that can be done related to this?

Thanks!

I have surfed the web for so many sites. majority provides downloads on a free trial basis only, before you know it you’re time have expired already leaving the kids frustrated.Many sites contain pop ups that makes you wonder when are you going to reach the site. RRPG sites are so violent, you have to monitor the kids constantly. I am looking for an entertaining yet child friendly site for downloading pc games. Thank you guys.