4-1 防鏽 1.物品生鏽了 2.鋼棉生鏽 3.認識實驗設計方法 4.防鏽的方法
4-2 食品保存 1.食物長黴了 2.土司長黴菌 3.黴菌對生活的影響 4.麵包黴 5.顯微鏡的使用方法 6.青黴菌 7.食品保存的方法 8.食品的保存方法(卡通)
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