McDougal Littell Workbook http://www.dentonisd.org/52720813122429830/lib/52720813122429830/PRACTICE_WORKBOOK.pdf
Castle Learning (formerly School Island) https://castlelearning.com/review/login.asp
Math Games http://www.aaamath.com/
Interactive USA Map http://www.sheppardsoftware.com/states_experiment_drag-drop_Intermed_State15s_500.html
World Atlas http://www.worldatlas.com/webimage/countrys/find.htm
Yahooligans http://yahooligans.yahoo.com/
More Math Games http://www.coolmath.com
Skills Tutor http://www.myskillstutor.com
Biomes of the World http://www.mbgnet.net/
Time for Kids http://www.timeforkids.com/TFK
NASA for middle-school students http://www.nasa.gov/audience/forstudents/5-8/features/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Fun activities - by girls....for girls. http://www.missoandfriends.com/
Herbivore, Carnivore, Omnivore Game http://www.sheppardsoftware.com/content/animals/kidscorner/games/animaldietgame.htm
Food Chain Game http://www.sheppardsoftware.com/content/animals/kidscorner/games/foodchaingame.htm
Producer, Consumer, Decomposer Game http://www.sheppardsoftware.com/content/animals/kidscorner/games/producersconsumersgame.htm
Scholastic News http://www2.scholastic.com/browse/index.jsp
Biomes http://www.thewildclassroom.com/biomes/index.html
More Biomes! http://www.worldbiomes.com/biomes_map.htm
Even More Biomes! http://chalk.richmond.edu/education/projects/webunits/biomes/biomes.html