Science Project on Observing Earth’s Rotation”, Project Experiment Topics on Outer Space for Class 8, 9, 10 and 12 Students.
Observing Earth’s Rotation
Materials Required:
- A clear night
- A chair
- Modelling clay
- Paper-towel roll
- A clock
- Paper and peg
- Some string
- Adhesive tape
With the earth’s rotation, the stars in the sky also seem to be moving. The objective in this experiment is to see how fast these stars move.
Tape a string across the mouth of the paper towel and roll around the middle. Now take another string and tape it across the mouth in the same fashion, but at a 90 degrees, so that the threads cross at the center, thereby serving as a position determinant in your view finder.
Choose a clear night and pick a bright star. Use your view pointer to view the star through it. The end with the strings should be towards the stars. Trace your star in such a way that it should be placed right at the center of the view finder, where the threads criss-cross. Fix the view finder in position with the help of some modeling clay. Note the time.
Keep checking the status of your star. Keep noting down the trajectory and measure the time taken for the journey.
Keep repeating the experiment with different stars and judge if all the stars took the same time to travel the same distance.