Youif i Hold the object slightly away from a smooth surface (floor, wall, etc.) when the sun is shining and observe the shadow. Are the edges sharp or blurry? then i would Move the object further away from the surface and observe any changes to the shadow - does it change in blurriness, in size, etc?

Sure, here's how you can observe the changes in the shadow:

1. Choose a sunny day for this experiment. Make sure the sun is shining brightly.

2. Select an object. It can be anything - a ball, a book, a toy, etc.

3. Hold the object slightly away from a smooth surface like a floor or a wall. Make sure the sun is hitting the object and creating a shadow on the surface.

4. Observe the shadow. Pay attention to the edges of the shadow. Are they sharp or blurry? Make a note of your observations.

5. Now, move the object further away from the surface. Again, observe the shadow.

6. Note down any changes you see. Does the shadow become more blurry or does it remain the same? Does the size of the shadow change?

7. Compare your observations from when the object was close to the surface and when it was further away.

This experiment will help you understand how the distance of an object from a surface affects the shadow it casts.