ECOLOGY
Secchi disc RV3087
Water Filtration Kit EI0055 The kit here introduces how water gets cleaned by building a simple filtration system and more… • set includes: 6x filtration paper, 2 sponges, 1x crushed granite, 1x porcelain sand, 1x activated carbon, 1x quartz sand, 1x saleratus, 1x potasium alum, 1x plastic hopper, 1x plastic cover, 4x filtration tube
A disk which can be used to monitor the water quality and photosynthesis process as part of ecological research. The size of the disk allows students to work in small groups. • disk diameter: 19 cm; string’s length: 1m; age: 8+
Waste segregation. Wooden puzzle VG4504
Educational toy for learning how to segregate waste and for raising environmental awareness. This product has a form of a box-shaped sorter with 4 holes, where properly segregated waste should be placed. The examples of rubbish for segregation are shown on wooden tiles. To check if the task was done correctly, the colour of the container is printed on the back of each tile. The set includes dices which randomly indicate the colour, with which the container should be filled. • 13 pcs: 8 tiles with illustrations, 1 box • dim.: 29,5 x 12 x 8,3 cm, 1 board illustrating the containers, 1 board with holes, 2 dices
• weight: 0,9 kg • material: wood • age: 3 +
education
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