project 3rd-grade pupils 1 Belgium 1 CivilEngineering 1 Design and construction 1 EARTH2 test 1 ENG 1 Early Childhood Science Education 1 Education 1 History of engineering & technology 1 Humanities 1 Mining Construction 1 Research 1 SCI-TECH 1 STEAM 1 STEM 1 STEM education 1 STM 1 Science 1 Social sciences 1 Tunneling 1 Tunnelling and Underground Engineering 1 Tunnels 1 acoustic emission (AE) 1 act 1 address 1 and two zoning plans” 1 argumentation 1 association 1 astronomy 1