Maker education
Make a slope and let the marble roll down as slow as possible!
1E5F96FC-6199-4EF0-B7E1-BE80DE70254E_1_105_c
Make a slope and let the marble roll down as slow as possible!
1E5F96FC-6199-4EF0-B7E1-BE80DE70254E_1_105_c