Physical Properties - PowerPoint PPT Presentation

Physical Properties

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Physical Properties

Physical Properties

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Presentation Transcript

1. Physical Properties Make your own flipbook for IAN page 38

2. Take a blank sheet of paper from the blue folder and fold in half hamburger style

3. Open your paper and fold the two sides in to meet at the middle Center fold

4. With the paper folded still, fold it in half hamburger style twice and then open • You should have 8 boxes on your paper now like so: • Cut along each of the 6 folds to create 8 flaps – do not cut through the back of the paper!!!!

5. You should not have a flipbook that looks like this: • As we go over the different physical properties, write their name on the outside of one flap and their definition on the back of the flap • You will add a picture for each later

6. 1st flap – Physical Properties • Physical properties are any characteristic of matter than can be observed without changing what the matter is • They can be observed using one or more of your five senses • EX: color, shape, odor, volume, mass, strength, etc…

7. 2nd Flap: Solubility • The ability to dissolve into another substance • Ex: Salt is soluble in water • It dissolves in water to make salt water • What are other examples of solubility? • Sugar • Kool aid • Alka seltzer

8. 3rd Flap: Ductility • The ability to be pulled into wires • Ex: copper is used for most wiring in electronics because of its high ductility – it can be made into very thin, very long wires • Doesn’t always have to be thin • What are some other examples of ductility? • Platinum, silver and gold in jewelry • Iron used to make screws and bolts

9. 4th flap: Malleability • The ability to mold and shape matter • Often describing how well it flattens out • Ex: aluminum for cans and foil • What are other examples? • Iron flattened into wrenches • Steel flattened to make work surfaces • Gold can be flattened to make gold leaf for decorating

10. 5th Flap: melting Point • The temperature where a substance changes from a solid to a liquid • EX: when ice reaches its melting point, it changes to liquid water • What are other examples? • Popsicle melting • Crayons melting • Wax melting

11. 6th flap: Boiling Point • The temperature where a substance changes from a liquid to a gas • EX: when water boils and turns to steam at 100 degrees C • What are some other examples? • Aluminum boils at 2467 degrees C (4472 F!) • Gold boils at 2807 degrees C (5084 F!)

12. 7th Flap: Electrical Conductivity • The ability to allow an electric current to flow through a material • Allows electrons to move through • EX: copper is highly electrically conductive and is therefore used in electronics wiring

13. 8th Flap: Thermal Conductivity • The ability to pass heat through a substance • Metals are extremely thermal conductive that is why they get so hot • EX: car hood on a summer day • Other examples: • metal spoon/fork in your hot dinner will become hot itself because it is transferring that heat