1. The orbit of a celestial body is usually in the shape of an ellipse.
- Correction: The orbit of a celestial body is usually in the shape of an ellipse.

2. Physics have know since the early 19th century that all matter is made up of tiny extremely particles called atoms.
- Correction: Physics has known since the early 19th century that all matter is made up of tiny particles called atoms.

3. Far more people reside in California than in other any state.
- Correction: Far more people reside in California than in any other state.