I would refer to the sun activities by Dr Maeve Liston while teaching the students about the Sun and Shadows.
Begin lesson by using the picture book “Bear Shadow” by Frank Asch as a stimulus.
Project pictures of sunny and cloudy days and highlight the shadows to the children. Ask them to find more shadows. Play ‘Sesame Street – My Furry Little Shadow.’
Take children outside to the schoolyard. Ask them to sit in a circle and begin to spot shadows outside. Trace the shadows with chalk.
Next, return to classroom and use a flashlight to act as the sun. Place objects in front of the flashlight to create shadows, seeing how shadows change depending on distance.