1. Ch. 12 1.3-4 students per table 2.Workbook & Textbook 3.Pencil / Pen 4.Start when quiet

2. Ch. 12: PROPERTIES 1.Mechanical Properties 2.Other Properties 3.Degradation and Protection

3. Text / Work Books Text Book – p. 388 Work Book - p. 199 Copy the following definitions

4. MECHANICAL PROPERTIES How it reacts when subjected to one or more contraints (p. 388)

5. DEGRADATION OF A MATERIAL The decline in some of its properties due to the effects of the surrounding environment.

6. PROTECTION OF A MATERIAL the application of procedures that prevent or delay its degradation.

7. p. 388

8. HARDNESS Ability to resist indentation or abrasion

9. STEEL vs. PLASTIC

10. ELASTICITY Ability to return to their original shapes after undergoing a constraint.

12. RESILIENCE Ability to resist shocks without breaking

14. DUCTILITY Ability to be stretched without breaking

16. MALLEABILITY Ability to be flattened or bent without breaking.

18. STIFFNESS Ability to retain their shapes when subjected to various constraints

19. Nanotubes = Stiffest Material on Earth

20. p. 389

21. RESISTANCE TO CORROSION Ability to resist the effects of corrosive substances (water and salt), which cause the formation of rust

22. Galvanized vs. non Galvanized

23. ELECTRICAL CONDUCTIVITY Ability to carry an electric current

25. THERMAL CONDUCTIVITY Ability to transmit heat

26. Cast Iron vs. Stainless Steel

27. Mechanical Properties Lab 1.Work with table groups 2.Write ALL names on hand-out 3.Hand in at the end of lab

28. Objective To illustrate such mechanical properties as hardness, elasticity, resilience, ductility, malleability and stiffness of candy products.

29. Procedure Perform a hardness, elasticity, resilience, ductility, malleability and stiffness test on each of the candies provided. Complete the following table by rating the candies 1 to 10 with 10 being the highest property.

30. Homework Work Book - p. 199-200