Time: 02:10CR - school - chemistry - laboratory - test tubes - sodium explosion
Time: 01:43CR - schools - vocational school - students - welding of plastics
Time: 00:31CR - finance - schools - money counter - fictive money
Time: 01:55CR - education - students - secondary school
Time: 03:19cr - education - ecology - children - primary school - 2
Time: 05:38cr - education - ecology - children - primary school
Time: 04:41CR - education - children - school - elementary - class - playground