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[[Image:Glass of water1.png]] | [[Image:Glass of water1.png]] | ||
This constitutes a brief explanation of activities based around both materials that float and sink and also mass in air and mass when countered by up-thrust. | |||
This constitutes a brief explanation of activities based around both materials that float and sink and also mass in air and mass when countered by | |||
Test some things to see if they float or sink. Use a forcemeter to measure their weight in air and their weight in water – the floaters should weigh nothing in water. Record the results in a spreadsheet table – do not graph the weights. | Test some things to see if they float or sink. Use a forcemeter to measure their weight in air and their weight in water – the floaters should weigh nothing in water. Record the results in a spreadsheet table – do not graph the weights. | ||