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Nouns:
Grammar Blast: http://www.eduplace.com/cgi-bin/hme-quiz-directions.cgi?Grade=4&Unit=2&Topic=Nouns
Rats: http://www.learningplanet.com/act/rats/rats3.htm?rats_compropnouns
Noun Dunk: http://www.harcourtschool.com/activity/basketball/index.html
Concentration: http://www.quia.com/jg/67715.html
Challenge Board: http://www.quia.com/cb/28126.html
Verbs:
Grammar Blast: http://www.eduplace.com/cgi-bin/hme-quiz-directions.cgi?Grade=4&Unit=3&Topic=Verbs
Verb Power: http://www.harcourtschool.com/activity/verb_power/index_pre.html
Treasure Hunt: http://www.bbc.co.uk/skillswise/words/grammar/tenses/getting_the_right_tense/game.shtml
Verb Agreement: http://www.bbc.co.uk/skillswise/words/grammar/tenses/getting_the_right_tense/game.shtml
Quiz Show: http://www.manythings.org/qs/verbs.html
Batter-up: http://www.harcourtschool.com/activity/batter_up/
Past-Tense Verbs: http://www.quia.com/cb/8111.html
Adjectives:
Grammar Blast: http://www.eduplace.com/cgi-bin/hme-quiz-directions.cgi?Grade=4&Unit=4&Topic=Adjectives
Word Machine: http://www.bbc.co.uk/schools/ks2bitesize/english/activities/adjectives_adverbs.shtml
Puzzle: http://www.nll.co.uk/self/java/adjwordelem.htm
Hangman: http://members.aol.com/Ccochran50/games.htm
Reporter: http://www.bbc.co.uk/skillswise/words/grammar/interestsentences/adjectives/game.shtml
Battleship: http://www.quia.com/ba/40155.html
Variety:
Grammar Gorillas: http://www.funbrain.com/cgi-bin/gg.cgi?A1=m&A2=0&A3=0&AFUNCT=1&ALEVEL=0
Rats: http://www.learningplanet.com/act/rats/rats3.htm?rats_nounverb
Alien Word Mine: http://www.iknowthat.com/com/L3?Area=WackAWord
Practice: http://www.mrnussbaum.com/nouns.htm