Shell Staining Experiment Follow up

After staining our shells throughout the week, we decided it was time to test the theory of baking soda paste as being a proper way to remove stains from teeth-like surfaces. The backing soda paste was very abrasive and partially successful at removing stains from some of the shells. The colors that cleaned up the best where yellow and green. Red, blue, and purple remained stained for the most part. We decided it would be a good idea to avoid processed foods with those particular added colors.
​Some of the Colorado Early Learning and Development Guidelines targeted during this activity include:  

• Physical Health Status: The maintenance of healthy and age-appropriate physical well-being.
• Scientific Skills and Method: The skills to observe and collect information and use it to ask questions, predict, explain, and draw conclusions,