1. Scientists finally concluded that the chicken came first, not the egg, because the protein which makes egg shells is only produced by hens.
2. Dinosaurs didn’t roar, they may have mumbled with their mouths shut.
3. The World’s oldest known creature was a mollusk, who was 507 years old before scientists accidentally killed it.
4. Your weight on the moon is 16.5% of your weight on Earth.
5.  Sound waves can be used to make objects levitate.

Source: https://www.factslides.com/s-Science