Correct Evidence: A precipitate forms, Odor formation, Color change, Sounds produced, Bubbles or gas produced, Fire or light is produced, New substance is created, Incorrect Evidence: Substance evaporates, Changing state of matter, Substance is absorbed, Dissolving one substance into another, Nothing new is created, Gas sample expands when heated, Change in shape,

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?