1. MetalDensity g/cm 3 Aluminum2.7 Brass8.5 Copper8.9 Gold19.3 The table provided identifies a substance based on its density. A sample of an unknown substance has a mass of 27 grams and a volume of 10 cm 3. What is the unknown substance based on its density?

2.  No warm up today.  Get your Journal and start a table of contents page “Mineral Man Pre-writing” 1. Choose your mineral 2. Research your mineral in your workbook or online. Remember anything you use in your final copy you must site your resources at the end of your paragraph. 3. Begin brainstorming superhero powers and costume. Write ideas in your journal. 4. Start rough draft of picture or paragraph.

3. Mohs Hardness Scale 1 – Talc 2 – Gypsum 3 – Calcite 4 – Fluorite 5 – Apatite 6 – Orthoclase Feldspar 7 – Quartz 8 – Topaz 9 – Corundum 10 – Diamond 1.List the following minerals from most hard to least hard. Talc, Corundum, Quartz, Calcite 2. A certain mineral sample cannot scratch Fluorite, but Fluorite can scratch the sample. What are the possible values of the mineral’s hardness?

4. Based on the data for the four samples, determine which of the following substances has the greatest density. A. Sample 1: volume = 15cm 3, mass = 30 g B. Sample 2: volume = 20cm 3, mass = 66 g C. Sample 3: volume = 3cm 3, mass = 12 g D. Sample 4: volume = 48cm 3, mass =100 g  NO CALCULATORS TODAY