Understanding ๐๐๐ฆ๐ฉ๐๐ซ๐๐ญ๐ฎ๐ซ๐ ๐๐๐ซ๐ข๐๐ญ๐ข๐จ๐ง๐ฌ: A Hands-On Experiment in the Grade 5 ๐๐๐ญ๐ก๐ฌ ๐๐๐ at ๐๐๐๐ – ๐๐๐๐ฌ๐ฎ๐ซ๐ข๐ง๐ ๐๐ง๐ ๐๐๐๐จ๐ซ๐๐ข๐ง๐ ๐๐๐ฆ๐ฉ๐๐ซ๐๐ญ๐ฎ๐ซ๐ ๐๐ก๐๐ง๐ ๐๐ฌ ๐๐ญ ๐๐ข๐๐๐๐ซ๐๐ง๐ญ ๐๐ข๐ฆ๐๐ฌ ๐๐ฌ๐ข๐ง๐ ๐๐ก๐๐ซ๐ฆ๐จ๐ฆ๐๐ญ๐๐ซ๐ฌ.