Changes

#* What determines the sharpness of shadows?

#* What determines the sharpness of shadows?

#* Shadows are sometimes sharper and sometimes more blurred, why?

#* Shadows are sometimes sharper and sometimes more blurred, why?

# After the activity, ask students to share their experiences, findings and inferences with other groups. Discuss the process that students went through to design the experiment, if there are any similar/contradictory findings, probe students to think about their hypotheses, what made them arrive at those conclusions. During consolidation:

# After the activity, ask students to share their experiences, findings and inferences with other groups. Discuss the process that students went through to design the experiment, if there are any similar/contradictory findings, probe students to think about their hypotheses, what made them arrive at those conclusions. Questions to ask during consolidation:

#* Did you discover anything new about shadows during the activity?

#* Did you discover anything new about shadows during the activity?

#* Were there any other questions that came to your mind when playing around with shadows?  

#* Were there any other questions that came to your mind when playing around with shadows?