LESSON NOTE ON COMPOUND AND MIXTURE FOR JSS2
WEEK: _______ DATE: CLASS: JS2
SUBJECT: BASIC SCIENCE
LESSON TITLE: COMPOUND
LEARNING OBJECTIVES: By the end of the lesson, students should be able to
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Define a compound
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Describe how compounds are formed
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KEY VOCABULARY WORDS:
RESOURCES & MATERIALS:
BUILDING BACKGROUND/CONNECTION TO PRIOR KNOWLEDGE: The students are familiar with elements and symbols.
LESSON NOTE ON COMPOUND AND MIXTURE FOR JSS2
CONTENT:
COMPOUND
A compound is a substance composed of two or more different elements chemically bonded together. These elements combine in fixed ratios, forming a distinct and unique substance with properties different from those of the individual elements.
How Compounds are Formed:
- Compounds are formed through chemical reactions, where atoms of different elements combine to achieve a more stable state. The combination involves the sharing or transfer of electrons, resulting in the formation of chemical bonds, such as covalent or ionic bonds.
Examples of Compounds:
- Water (H₂O): A compound formed by the combination of hydrogen and oxygen.
- Sodium Chloride (NaCl): Commonly known as table salt, formed by the combination of sodium and chlorine.
- Methane (CH₄): A hydrocarbon compound formed by the combination of carbon and hydrogen.
- Calcium Carbonate (CaCO₃): Found in chalk, limestone, and marble, formed by the combination of calcium, carbon, and oxygen.
Examples of Element + Element = Compounds (Tabular Form):
| Element 1 | Element 2 | Compound |
|---|---|---|
| Hydrogen | Oxygen | Water (H₂O) |
| Sodium | Chlorine | Sodium Chloride (NaCl) |
| Carbon | Hydrogen | Methane (CH₄) |
| Calcium | Carbon | Oxygen (CaCO₃) |
The table illustrates some common examples of compounds formed by the combination of specific elements. The chemical formulas represent the elemental composition of each compound.
Understanding compounds and their formation is fundamental to comprehending the diverse array of substances found in the natural world and is crucial in various scientific disciplines, including chemistry,basic science and biology.
STRATEGIES & ACTIVITIES: Critical thinking & Problem solving
Activity 1.
Activity 2.
Activity 3.
Activity 4.
WRAP-UP (CONCLUSION): The whole topic was revise again to the students.
ASSESSMENT (EVALUATION): Assessment was done by asking question based on the behavior objectives.
