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Published byRoss Miller Modified over 9 years ago
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The bowling ball and the balloon take up the same amount of space ( have equal volumes ) Do equal volumes of different substances always have the same mass? Warm-Up
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Review
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Triple Beam Balance Used to Measure Mass
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Parts of the Triple Beam Balance
BEAMS PAN BALANCE POINT ZERO/ TARE KNOB MOVEABLE MASSES BASE
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A Closer Look at the Beams
10 gram beam 100 gram beam 1 gram beam
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Practice reading the mass on the Beams
If the middle beam is on 400g, the back beam is on 50g and the front beam is on 7g, what is the total mass in grams? Kg? If the middle beam is on 200g, the back beam is on 20g and the front beam is on 5.2g, what is the total mass in grams? Kg? 3. If the middle beam is on 500g, the back beam is on 10g and the front beam is on 1.2g, what is the total mass in grams? Kg?
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Practice with the Triple Beam
Matter 100 g + 10 g + 1 g = Total Mass
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Density of Matter Practice
Block # Physical Properties Mass (g) Volume (cm3 (2.5 x 2.5 x 2.5) Density (g/cm3) 1 15.625 2 3 4 5 6 7 8
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Conclusion Why would scientists use density rather than just mass or volume? Provide examples. How can understanding density be important?
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