Properties of Matter 6.P.2.3 Notes

Density 1. To find density of an object use the formula D = M/V…Density = Mass divided by Volume 2. What are the units for each part of the equation 3. Mass = grams (g) Volume when using water = Milliliters (mL) Volume when using a ruler = Centimeters Cubed (cm3) Density = g/mL or g/cm3

Density – looking at volume 4. Regular Objects are items that have corners and edges that are easy to measure with a ruler. 5. Formula for finding the volume of a regular object is LxWxH (length x width x height). To get volume in cm3 6. Irregular Objects are items that have odd shapes and cannot be measured with a ruler. Instead we use Water Displacement. 7. SKIP

Density – looking at water 8. The density of water is 1g/cm3 9. Anything less than 1 g/cm3 will float 10. Anything more than 1 g/cm3 will sink 11. 1 cm3 = 1 mL Volume is the amount of space a substance occupies. Brain Pop on Measuring Matter

Boiling Point and Melting Point 13. What is the Boiling point of water and melting point of ice? a. Boiling Point: 100 degrees Celsius or 212 degrees Fahrenheit b. Melting Point: 0 degrees Celsius or 32 degrees Fahrenheit 14. I have a gold bar that is 100 grams and a gold necklace that is 20 grams. Will the boiling point be the same or different? Will the melting point be the same or different? Boiling Point and Melting Point will not change based on the amount of matter present because they are independent properties.

Physical and Chemical Change 15. Example (physical change): Change of state (such as solid to liquid or from gas to liquid) An example of Physical change is taking a piece of paper and cutting it into several pieces. It is still paper just smaller. 16. No give your own example of a physical change. ________________________________________________________ 17. However, if I burn paper is that a physical change? Why or why not? Brain Pop on Property Changes!

Pure Substances and Solubility (solute and solvent) 18. Give some examples of pure substances: a substance that is made up of only one type of particle. For example, oxygen or water. 19. Give some examples of things that are not pure substances: a substance that is made up of more than one type of particle. For example, Tap Water and Air. https://www.youtube.com/watch?v=88MBCyiaP SM

Solubility: solute and solvent Solubility – the ability of something to dissolve! (ADD THIS AT THE BOTTOM OF THE PAGE) Look at the example of saltwater… 20. Water is the solvent, salt is the solute in the solution. WATER is the Universal Solvent for most Solutions.

Solubility: Solute and Solvent 21. You are given a solution which contains ink and water. What is the solvent in this solution? ________________________ What is the solute in this solution? ________________________ 22. You are given a mixture of sand and water. Is this solution soluble why or why not? __________________________________________________ https://www.youtube.com/watch?v=e-2EoyDYamg