[tr][td][br][table][tr][td][br]Grades 5 - 8[br][br]Duration: 20 min[br][br]Tools: one 16 pcs Set / 1 to 4 students[br][br]Individual / Pair / Group work[br][br]Keywords: Precision scale, Average[br][br][br][br][/td][td][img]https://www.geogebra.org/resource/atmvfmra/pKGw0fkjDWKZNxYT/material-atmvfmra.png[/img][/td][td][size=150][b][/b][center]Energy[/center][center][b][/b][/center][/size][table][tr][td][table][tr][/tr][/table][center][/center][table][tr][/tr][/table]  [img]https://www.geogebra.org/resource/ukqqntmc/27usGTkgTTdExVSR/material-ukqqntmc.png[/img] [/td][/tr][tr][td][size=150][b][center]PHYSICS[/center][/b][br][/size][/td][/tr][tr][td][br][/td][/tr][/table][/td][td][img]https://www.geogebra.org/resource/atmvfmra/pKGw0fkjDWKZNxYT/material-atmvfmra.png[/img][/td][td][img]https://www.geogebra.org/resource/mtuymvrb/w4RGGbmmPRjfnjNR/material-mtuymvrb.png[/img][/td][/tr][/table]__________________________________________________________________________________________________________________________________________[/td][/tr][tr][td]DESCRIPTION[br]Build a continuous surface and think about potential energy at the corners of the blocks, as well as at the locations where a marble would have equilibrium or which locations are reachable from another location without adding energy to the marble.[/td][/tr]