Title: Metals and Non-metals
Grade Level: Upper Secondary (Grades 10-12)
Subject: Chemistry
Duration: 45 minutes
Learning Objectives:
1. Understand the characteristics and properties of metals and non-metals.
2. Differentiate between metals and non-metals based on their physical and chemical properties.
3. Explain the reactivity series of metals and non-metals.
4. Identify the uses of metals and non-metals in everyday life.
Materials:
1. PowerPoint presentation or posters on metals and non-metals
2. Samples of different metals such as iron, copper, and aluminum
3. Samples of non-metals such as sulfur, carbon, and phosphorous
4. Test tubes, test tube holder, and a Bunsen burner
5. Reagents like hydrochloric acid, sulfuric acid, and water
6. Safety goggles and gloves
Procedure:
1. Introduction (5 minutes):
a. Begin the lesson by asking students about the different materials around them – Why are some materials shiny and conductive, while others are dull and insulators?
b. Present the learning objectives to the students.
2. Presentation on Metals and Non-metals (10 minutes):
a. Use a PowerPoint presentation or posters to explain the characteristics and properties of metals and non-metals. Include details such as physical appearance, conductivity, malleability, and melting points.
b. Highlight examples of common metals and non-metals found in daily life.
3. Experiment: Reactivity of Metals (15 minutes):
a. Demonstrate the reactivity of metals by performing a simple experiment.
b. Take three samples of metals, such as iron, copper, and aluminum.
c. Place each metal in separate test tubes.
d. Add a few drops of hydrochloric acid to each test tube and observe the reactions.
e. Discuss the observations and note the differences in reactivity among the metals.
4. Experiment: Reactivity of Non-metals (15 minutes):
a. Repeat the previous experiment using non-metals such as sulfur, carbon, and phosphorous.
b. Instead of hydrochloric acid, use sulfuric acid.
c. Observe the reactions and discuss the reactivity pattern among the non-metals.
5. Discussion and Conclusion (5 minutes):
a. Summarize the differences between metals and non-metals based on the experiments and properties discussed.
b. Engage the students in a class discussion by asking questions like:
- Why are metals generally good conductors of heat and electricity?
- What are the similarities and differences between the reactivity of metals and non-metals?
c. Conclude the lesson by reinforcing the uses of metals and non-metals in everyday life.
Assessment:
1. Ask students to compare the reactivity of metals and non-metals based on their experiment observations.
2. Assign a short writing task in which students describe the characteristics and properties of metals and non-metals.
3. Encourage students to come up with examples of the uses of metals and non-metals in daily life.
Note: Ensure to follow all safety protocols during the experiments and provide guidance to the students while handling chemicals and apparatus.
Create an upper secondary standard based lesson plan on metals and non metals
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