Used baking soda, tooth paste, vinegar, salt and toothbrush to create a chemical to clean a corroded penny

Science

• The child learned about the concept of chemical reactions by observing how different substances interacted with the corroded penny.
• They discovered that baking soda and vinegar created a fizzing reaction, which helped remove the corrosion from the penny.
• The child also learned about the abrasive properties of toothpaste and salt, which helped in scrubbing off the remaining dirt and grime from the penny.
• They understood the importance of using a toothbrush to physically agitate the surface of the penny, aiding in the cleaning process.

Encourage the child to explore other household items that can be used to clean and experiment with different objects. They can try using lemon juice, ketchup, or even cola to see their effects on different materials. Additionally, they can research more about chemical reactions and how they occur in our daily lives. This activity can also serve as a starting point for discussing the importance of cleaning and maintaining objects for their longevity.

Book Recommendations

• The Science of Baking Soda by Lisa Owings: This book explores the various uses and properties of baking soda, including its role in chemical reactions and cleaning processes.
• The Magic School Bus and the Electric Field Trip by Joanna Cole: While not directly related to cleaning a penny, this book takes kids on an educational journey to discover the wonders of electricity, which is closely linked to chemical reactions.
• The Chemistry Book: From Gunpowder to Graphene, 250 Milestones in the History of Chemistry by Derek B. Lowe: This book provides fascinating insights into the history and development of chemistry, including the discovery of various chemicals and their applications in everyday life.