Today we carried out an experiment on Sinking and Floating. Whether an object sinks or floats depends on its density. Everything is made of molecules. Molecules are tiny particles that can only be seen with a microscope. Some objects have molecules that are packed closely together. Others have molecules that are packed more loosely. This is density. Objects with tightly packed molecules are denser and sink. A paper clip or a penny is dense. Objects with more loosely packed molecules are less dense and float. Wood, cork or sponges float. | |
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Who are we?We are 1st and 2nd class in St. Teresa's NS Ballintogher Co. Sligo. Archives
October 2019
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