Educational worksheet introducing acids and bases with a pH scale and household items.
A worksheet titled "Introduction to Acids & Bases" featuring a pH scale with household items like stomach acid, lemon, grapes, tomatoes, bananas, milk, water, eggs, baking soda, soap, ammonia, bleach, and oven cleaner. The worksheet includes definitions of acids and bases, a note on pH values, and questions asking whether various substances are acids or bases.