STEM CHALLENGE

This isthe september aktivities:https://tr.pixiz.com/result?workId=bda9439c8957175f53cba3127bfcc0f3&resultId=804cb46984fbeaa64a42adbac5893ff2&resultFormat=gif&templateId=4064&time=11.51&opt138=2&opt140=1https://tr.pixiz.com/result?workId=bda9439c8957175f53cba3127bfcc0f3&resultId=804cb46984fbeaa64a42adbac5893ff2&resultFormat=gif&templateId=4064&time=11.51&opt138=2&opt140=1