lesson for demonstration teaching in humss.pptx

humss

1. “Pass the cabbage”

2. Q1: What is a non-polar covalent bond? β eta

3. Q2: Give one example of polar covalent bond . You use it everyday =)

4. Q3: What property is exhibited in the dissolving of salt in water?

5. Q4: What property is exhibited in insects floating in water?

6. Q5: What are three major types of intermolecular forces?

7. Learning objectives: Identify some medical implants, sports equipment, electronic devices, construction supplies and household gadgets; Construct a table classifying properties for medical implants, sports equipment, electronic devices, construction supplies and household gadgets; Create an essay to express the importance of medical implants, sports equipment, electronic devices, construction supplies and household gadgets.

8. It is time for “Group Work”

9. Ceramics: Ceramics are generally thought of as inorganic and nonmetallic solids with a range of useful properties, including very high hardness and strength , extremely high melting points , and good electrical and thermal insulation .

10. Examples:

11. Metals: a solid material that is typically hard , shiny , malleable , and ductile , with good electrical and thermal conductivity

12. Examples:

13. Polymers: Polymers are molecules with a large number of repeating units of covalently bonded chain of atoms. Generally, polymers are very light in weight with significant degrees of strength

14. Examples:

15. Let us play a game!

16. Choose only one from medical implants, sports equipment, electronic devices, construction supplies and household gadgets and make a 10 – sentence essay about the importance of their properties on how they will be utilized according to its specific purpose. (1/2 crosswise) Advance reading on “collision theory”