health
Why are red apples sweet and green apples sour? The kids’ quiz
Five multiple-choice questions – set by children – to test your knowledge, and a chance to submit your own junior brainteasers for future quizzes
TL;DR
- Red apples turn their acid into sugars as they ripen, making them taste sweeter.
- The Easter Island statues are suggested to represent important people who died.
- The relationship between humans and dogs is described as potentially reciprocal, with humans possibly being a dog's best friend.
- Galaxies are believed by scientists to have formed due to gravity and density.
- Sunlight provides plants with energy to help them collect water and carbon dioxide.