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Mass, Temperature and Density Review

Learn about volume, mass, density, and how to measure them with instruments like a graduated cylinder and triple beam balance. Discover the concept of density and why objects float or sink in different liquids.

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Mass, Temperature and Density Review

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  1. Mass, Temperature and Density Review

  2. What is the definition of volume? The amount of space an object takes up. What is the name of the instrument used to measure the volume of a liquid? Graduated cylinder

  3. How is the volume of a liquid measured? Units? Use a graduated cylinder. mL or L How is the volume of a regular solid measured? Units? length x width x height cm3

  4. What is the definition of mass? The amount of matter in an object. 2. What is the name of the instrument used to measure mass? triple beam balance 3. What are the units used to measure mass? grams

  5. Mass = 137.4 gm

  6. What is density? Mass per unit volume 2. How is the density of an object measured? Density = mass/volume

  7. What is the density of one cup of water? 1g/mL 2. What is the density of half a cup of water? 1g/mL

  8. 1. What is the density of a 100gram object with a volume of 20 milliliters? D = M/V = 100g/20mL = 5g/mL 2. The object above was cut into three pieces. What is the density of one of those pieces? 5g/mL The density NEVER changes!

  9. Explain why an object placed in a glass of water floats. The object has a density less than the density of water (1g/mL).

  10. Explain why an object placed in a glass of water sinks. The object has a density more than the density of water (1g/mL).

  11. Below is a list of the densities of different object. Will each one float or sink in water? Support your answer. • 0.38 g/cm3 • 1.7 g/cm3 • 1.2 g/cm3 • 0.99 g/cm3 • 100 g/cm3 float It is less dense than water. sink It is more dense than water. sink It is more dense than water. float It is less dense than water. sink It is more dense than water.

  12. An object has a mass of 10g and a volume of 2cm3. Identify the density of the object. D = M/V 10g/2cm3 =5g/cm3

  13. Identify the liquid that is LEAST dense. Support your answer. Pomegranate juice It is floating at the top. 2. Identify the liquid that is MOST dense. Support your answer. White grape juice It is found at the bottom.

  14. Identify the liquid that is LEAST dense. Support your answer. Rubbing alcohol It is floating at the top. 2. Identify the liquid that is MOST dense. Support your answer. Honey It is found at the bottom.

  15. 3. Identify the solid that is LEAST dense. Support your answer. Wood It is floating at the top. 4. Identify the liquid that is MOST dense. Support your answer. Steel nut It is found at the bottom.

  16. Identify the instrument used to measure mass. • Thermometer • Graduated cylinder • Triple beam balance • Metric ruler

  17. The SI units used when measuring mass are • milliliters • centimeters cubed • meters • grams

  18. Identify the instrument used to measure temperature. • Thermometer • Graduated cylinder • Triple beam balance • Metric ruler

  19. Identify the SI units used to measure temperature. • meter • degrees Celsius • grams • Degrees Fahrenheit

  20. Identify the SI units used to measure the density of a liquid. • mL • g/cm3 • cm3 • g/mL

  21. mm, cm, m, km g cm3 mL or L g/cm3 org/mL g/mL

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