{"id":2659,"date":"2026-05-18T16:39:21","date_gmt":"2026-05-18T07:39:21","guid":{"rendered":"https:\/\/training.contentsda.kr\/?post_type=courses&p=2659"},"modified":"2026-05-18T07:39:22","modified_gmt":"2026-05-18T07:39:22","slug":"density","status":"publish","type":"courses","link":"https:\/\/training.contentsda.kr\/ne\/courses\/density\/","title":{"rendered":"Density"},"content":{"rendered":"

Objective:<\/strong> The objective of this experiment is to explore and compare the densities of various materials, including aluminum, copper, marble, oak wood, and ice. Students will observe how each material interacts with water and infer conclusions about their relative densities.<\/p>\n

Materials:<\/strong><\/p>\n

    \n
  1. Samples of aluminum, copper, marble, oak wood, and ice<\/li>\n
  2. Graduated cylinder or beakers<\/li>\n
  3. Water source<\/li>\n
  4. Measuring scale<\/li>\n
  5. Stopwatch or timer<\/li>\n
  6. Towels or paper towels<\/li>\n<\/ol>\n

    Procedure:<\/strong><\/p>\n

      \n
    1. Preparation (5 minutes):<\/strong>\n
        \n
      • Ensure all materials are clean and dry.<\/li>\n
      • Set up the graduated cylinder or beakers on a flat surface.<\/li>\n<\/ul>\n<\/li>\n
      • Dipping Materials in Water (15 minutes):<\/strong>\n
          \n
        • Fill the graduated cylinder or beakers with water.<\/li>\n
        • Carefully place each material into the water, making sure it is fully submerged.<\/li>\n
        • Observe and record any changes in the water level.<\/li>\n<\/ul>\n<\/li>\n
        • Observation and Data Collection (20 minutes):<\/strong>\n
            \n
          • Record the initial water level before placing any material.<\/li>\n
          • Note the change in water level for each material after immersion.<\/li>\n
          • Measure the time it takes for each material to reach equilibrium (constant water level).<\/li>\n<\/ul>\n
              \n
            • <\/li>\n<\/ul>\n<\/li>\n
            • Analysis and Conclusion (20 minutes):<\/strong>\n
                \n
              • Compare and analyze the densities of aluminum, copper, marble, oak wood, and ice.<\/li>\n
              • Discuss the results in relation to the observed changes in water level and the characteristics of each material.<\/li>\n
              • Consider the concept of buoyancy and how it relates to density.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                Safety Precautions:<\/strong><\/p>\n

                  \n
                • Ensure careful handling of materials to prevent injury.<\/li>\n
                • Clean up any water spills promptly.<\/li>\n
                • Luckily, we are doing it all digitally \ud83d\ude42<\/li>\n<\/ul>\n

                  Conclusion:<\/strong> This density experiment provides students with a hands-on approach to comparing the densities of different materials. By observing the water displacement and measuring the time to reach equilibrium, students can draw conclusions about the relative densities of aluminum, copper, marble, oak wood, and ice. The experiment also promotes critical thinking about the properties of materials and their interactions with water.<\/p>","protected":false},"excerpt":{"rendered":"

                  Objective: The objective of this experiment is to explore and compare the densities of various materials, including aluminum, copper, marble, oak wood, and ice. Students will observe how each material interacts with water and infer conclusions about their relative densities. Materials: Samples of aluminum, copper, marble, oak wood, and ice Graduated cylinder or beakers Water […]<\/p>\n","protected":false},"author":1,"featured_media":3207,"template":"","course-category":[61,60],"course-tag":[],"class_list":["post-2659","courses","type-courses","status-publish","has-post-thumbnail","hentry","course-category-cardboard","course-category-webgl","pmpro-has-access"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/courses\/2659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/courses"}],"about":[{"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/types\/courses"}],"author":[{"embeddable":true,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/users\/1"}],"version-history":[{"count":1,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/courses\/2659\/revisions"}],"predecessor-version":[{"id":2660,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/courses\/2659\/revisions\/2660"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/media\/3207"}],"wp:attachment":[{"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/media?parent=2659"}],"wp:term":[{"taxonomy":"course-category","embeddable":true,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/course-category?post=2659"},{"taxonomy":"course-tag","embeddable":true,"href":"https:\/\/training.contentsda.kr\/ne\/wp-json\/wp\/v2\/course-tag?post=2659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}