Floating sinking

Story book 

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🌊 Floating and Sinking

🎯 Learning Objectives

• Understand why objects float or sink.
• Explain density in simple terms.
• Observe and interpret the lemon experiment.
• Relate floatation to real-life situations.

🧩 Competencies

• Conceptual Understanding – Floatation and density
• Observation Skills
• Analytical Thinking
• Application Skills
• Communication Skills

📊 Learning Outcomes

• Floating depends on density.
• Lemon sinks in plain water and floats in salt water.
• Buoyant force helps objects float.
• Applied in ships and sea water.

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🎥 Evidence (Student Video)

Upload or embed student experiment video:

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📝 Worksheet (Who Am I - MCQ)

1. I push objects upward in water.

Gravity Friction Buoyant Force Magnetism

2. I increase when salt is added.

Volume Density Mass Temperature

3. I am the fruit used.

Apple Mango Lemon Banana

4. I am added to water.

Sugar Salt Oil Sand

5. I decide floating or sinking.

Shape Color Density Size

6. Lemon sinks in me.

Salt Water Plain Water Sea Water Oil

7. Lemon floats in me.

Plain Water Salt Water Cold Water Hot Water

8. I pull objects downward.

Buoyant Force Gravity Magnetism Friction

9. When I am greater than weight, object floats.

Gravity Buoyant Force Friction Pressure

10. I mean staying on surface.

Floating Sinking Melting Boiling

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🧠 Higher Order Thinking Questions

1. If sugar is added instead of salt?

Yes, but less effective because sugar increases density less.

2. If lemon is very small?

It will sink.

3. Why float more in sea water?

Sea water has higher density, so buoyant force is more.

4. Can experiment compare densities?

Yes, by observing floating differences.