How much water does a ten year old need a day?

A ten-year-old typically needs about 7 to 8 cups (approximately 1.6 to 2 liters) of water per day, although individual needs can vary based on factors like physical activity, climate, and overall health. It's important for children to stay hydrated, especially during exercise or hot weather. Encouraging regular water intake throughout the day can help meet their hydration needs.