"Color Changers" Trailer

Students discover that ordinary yellow paper can do extraordinary things. They draw on it with household ammonia, baking soda mix, and vinegar to develop a way to send secret messages. This relates to chemical changes, acids and bases, pH indicators, and evaporation. This video also includes one of Mr. Mac’s crazy stories, “Evil Mister Fred in Mirror Land,” to help students remember the lesson. Difficulty: Easy

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Note: All activities in this lesson should be performed with adult supervision. Likewise, common sense and care are essential to the conduct of any and all activities, whether described in this lesson or otherwise. Parents or guardians should supervise children. Rock-it Science assumes no responsibility for any injuries or damages arising from any activities.