Here are the completed sentences using the given words:

1. The imaginary stick going through the North Pole to the South Pole is called an **axis**.
2. It takes the Earth **24** hours to make a complete rotation.
3. While one side of the Earth faces the Sun and receives daylight, the other side is in complete **darkness**.
4. The Earth travels around the **Sun**, and it takes 365 days and 6 hours to make a full rotation.
5. When two counties are located in different hemispheres, such as the northern and southern hemispheres, they have opposite seasons. For example, it is winter in Japan but it’s **summer** in Australia.