Parts of Speech:
http://www.funbrain.com/grammar/
https://sites.google.com/site/easygrammar4kids/parts-of-speech
http://interactivesites.weebly.com/parts-of-speech.html
http://www.slimekids.com/games/grammar-games/grammar-bee.html
Common and Proper Nouns:
http://www.harcourtschool.com/activity/basketball/index.html
http://www.quia.com/cz/50478.html
Adjectives:
http://www.learningplanet.com/act/rats/rats3.asp?rats_advadj
http://www.ngfl-cymru.org.uk/vtc/ngfl/english/caerphilly/adjectives/index.htm
http://www.ezschool.com/Games/Adjectives.html
http://www.eduplace.com/cgi-bin/hme-quiz-directions.cgi?Grade=5&Unit=4&Topic=Adjectives
http://www.sheppardsoftware.com/grammar/adjectives.htm
Verbs:
http://www.softschools.com/language_arts/grammar/verb/balloon_game/
http://www.grammaropolis.com/games.php
Prefixes/Suffixes/Root Words:
http://www.funenglishgames.com/grammargames/prefixsuffix.html
http://www.aasd.k12.wi.us/staff/boldtkatherine/readingfun3-6/readingfun_prefixessuffixesroots.htm
Possessive Nouns:
http://www.grammar-quizzes.com/agr_possessives.html
http://www.english-zone.com/spelling/poss2.html
http://www.learninggamesforkids.com/memory_games/possessive-nouns-card-flip.html
Pronouns:
http://www.studyzone.org/testprep/ela4/o/pronounsl.cfm
http://www.harcourtschool.com/activity/pronoun_clubhouse/index_pre.html
Synonyms and Antonyms:
https://www.abcya.com/games/wordtoss_synonym_antonym
https://www.learninggamesforkids.com/vocabulary-games/synonyms/synonym-or-antonym.html