The Society for Environmental Education Baden-Württemberg - GUB for short - has created an explorer channel on YouTube in response to the Covid-19 restrictions. In the videos, GUB shows how to conduct easy science activities step-by-step and would like to give parents, but also primary school teachers and educators, suggestions and support on how and what you can explore with children through simple hands-on science experiments. In this video, become an architect: Building blocks are for yesterday, today you build with peas! Castles, dream structures, geometric figures... the pea method gives you the greatest freedom in construction. You are not bound to certain angles and with a little skill you have up to eight connection possibilities per pea. The construction set is also absolutely environmentally friendly