Little scientist experiments: Shiny pennies

Here is another easy experiment by Little Scientist Diego. He learnt that lemon juice is an acid and that Water is not an acid. And in the process he made a few pennies shinier 🙂 Tools: two beakers, tweezers, bigger bigger Extras: dull pennies, water, lemon juice, paper towels Key science concepts: Lemon juice is … Continue reading Little scientist experiments: Shiny pennies