Question

what is used in an experiment to show how the length of a shadow changes throughout the day ( I will pick the smartest )

Answer 1

Answer:

The angle of the Sun, low in the sky to higher in the sky, changes the length of the shadow cast behind an object. In the morning, the Sun appears low in the sky; objects cast long shadows. As Earth rotates, the Sun appears higher in the sky, and the shadows get shorter.

Answer 2

Answer:

a stick ,an open area {say an open ground},a chalk {for marking},a wrist watch,a pen and paper

Explanation:

procedure:

fix the stick to the ground [by penitrating it into the ground] [remember the ground should be opened].Now mark the position of shadow according to the time and also note the time and position of shadow on the paper and here u can see how the length and position of the shadow [of stick] changes with respect to time.