Textbook learning is abstract. Seeing something happen—a volcano erupt, liquid change colour, ice melt at different rates—makes concepts stick.
Home experiments also build curiosity and confidence. Kids realise they can figure things out, test ideas, observe results. That's the scientific method in action.
You don't need a fancy lab. Your kitchen has everything: vinegar, bicarb, water, food colouring, salt, oil. Chemistry happens.