Why does sound seems to travel faster in air than in solids when it is actually opposite?
Sound travels faster in solids as it involves vibration of particles which are much closer to each other in solids than in air. However, people with minimum knowledge of physics assume that sound travels faster in air as it usually involves conversations with direct vision. Hence, there sense of vision and hearing coincides and create confusion in people's minds.
What does 'Je veux voyager le monde entier!' and 'Je veux manger!' mean? Also, why learn french?
It means 'I want to travel the whole world!' and 'I want to eat!'-which is probably two of the most popular sentences people will want to learn apart from 'Bonjour!'. French is the sixth most widely spoken language in the world but more people should realize french is a very well-thought language.
Would children learn more from static memorization and repetition exercises or hands-on activities?
While static memorization is only temporary for most people, hands-on activities involves the use of different senses of the body such as sight and sense of touch. Children will also develop critical thinking skills and they will remember what they did even months or years later.