The document provides information about cooperative group roles and an introduction to density. It defines density as a ratio of mass to volume and explains that density remains the same even if the volume of a substance changes. It lists common materials and their densities and includes sample density problems and a chart to complete.
4. Intro to Density 1. What is mass effected by? 2. Will changing the volume change the density? How tightly packed the particles are in a substance . vs. A block of iron has very tightly packed particles compared to a block of aluminum . NO. Density is a RATIO between mass and volume ….the particles remain packed the same way no matter what the size of the sample. Class Notes Topic: ________________________ Questions/Main Ideas: Name ________________________________________ Class ________________________________________ Period ________________________________________ Date _____________________________________ Notes:
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8. Copy chart onto Cornell Notes Sample Chemical Symbol Density g/cm3 Physical Attribute Lead Pb 11.3 Heaviest Mass Copper Cu 8.9 Orange Iron Fe 7.9 Magnetic/Rusts Brass Cu & Zn 8.6 Yellow Aluminum Al 2.7 Lightest Mass Zinc Zn 7.1 Dull Gray
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11. Answer in complete sentences : 8. How is Density useful in identifying substances? Explain why a substance, such as gold, cut into different sizes, would have the same density.
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