Objects that float in Water Basic Science Primary 2 Third Term Lesson Notes Week 8
Subject: Basic Science
Class: Primary 2
Term: Third Term
Week: 8
Topic: Water – Objects that float in water
Sub-topic:
- ii. Mention objects that float in water
- iii. Describe the characteristics of objects that flow in water
- iv. Demonstrate how to make objects float in water
Duration: 40 minutes
Behavioral Objectives:
- By the end of the lesson, pupils should be able to:
- Mention objects that float in water.
- Describe the characteristics of objects that flow in water.
- Demonstrate how to make objects float in water.
Key Words: Float, water, objects, characteristics
Entry Behaviour: Pupils may have some experience with water and have seen objects floating in water.
Learning Resources and Materials:
- Bowl or basin filled with water
- Various objects such as wood, plastic bottles, leaves, and Styrofoam
- Demonstration materials
Building Background / Connection to Prior Knowledge:
- Begin the lesson by asking pupils if they have seen any objects floating in water.
- Ask them to share their experiences and what objects they have seen floating.
Embedded Core Skills:
- Observation
- Critical thinking
- Problem-solving
Learning Materials:
- Objects that float (e.g., wooden sticks, plastic bottles, leaves, and Styrofoam)
- A bowl or basin of water for demonstration
Reference Books:
- Lagos State Scheme of Work for Primary 2 Basic Science
Instructional Materials:
- Bowl or basin filled with water
- Various objects such as wood, plastic bottles, leaves, and Styrofoam
Content:
- Discuss objects that float in water and how they are lightweight.
- Describe the characteristics of objects that flow in water, such as being light and having air inside.
- Demonstrate how to make objects float in water using various materials.
Let’s talk about objects that float in water! I’ll explain in list format with examples and include how to make objects float in water. 😊
a. Objects that float in water:
- Wooden sticks: These float easily on water. 🌳
- Plastic bottles: Empty bottles can float on water. 🍼
- Leaves: Leaves from trees float on water. 🍃
- Corks: Corks are light and float in water. 🧊
- Styrofoam: Styrofoam is very light and floats well. 🧊
b. Characteristics of objects that float in water:
- Lightweight: Objects that float in water are usually light.
- Air-filled: If an object has air inside, it can float better.
- Shape: Some shapes, like wide and flat objects, float easily.
- Material: Objects made of materials like wood and plastic float well.
iv. Demonstrate how to make objects float in water:
- Gather objects: Collect different items like wooden sticks, plastic bottles, and leaves.
- Find a container: Use a bowl or basin and fill it with water.
- Place objects in water: Gently put the objects in the water.
- Observe: Watch how the objects float on the water’s surface.
- Experiment: Try different objects to see which float and which sink.
This way, you can see how different objects float in water and understand why! 😊
Class Activity Discussion with answers for the topic of objects that float in water:
- Q: What does it mean when objects float in water?
- A: It means the objects stay on the water’s surface and do not sink.
- Q: Can wooden sticks float in water?
- A: Yes, wooden sticks float because they are lightweight.
- Q: What kind of bottle can float in water?
- A: An empty plastic bottle can float because it is light and has air inside.
- Q: Can leaves float in water?
- A: Yes, leaves float because they are light and flat.
- Q: Why does cork float in water?
- A: Cork floats because it is light and filled with tiny air pockets.
- Q: What is Styrofoam?
- A: Styrofoam is a light material that floats well in water.
- Q: What characteristics help objects float in water?
- A: Objects float if they are light, have air inside, and have a wide shape.
- Q: How can you make a boat float?
- A: Use a lightweight material like wood or plastic and shape it to be wide and flat.
- Q: What kind of materials float best in water?
- A: Materials like wood, plastic, and Styrofoam float well.
- Q: Can metal objects float in water?
- A: Most metal objects sink because they are heavy.
- Q: What should you do to test if an object floats in water?
- A: Place the object gently on the water and watch if it floats.
- Q: Why do wide and flat objects float better?
- A: Wide and flat objects spread out the weight, helping them float.
- Q: How does air help objects float?
- A: Air inside the object makes it lighter, so it floats easier.
- Q: Can paper float in water?
- A: Yes, paper can float because it is light and flat.
- Q: What happens when an object sinks in water?
- A: It means the object is too heavy and does not stay on the surface.
These questions and answers should help Primary 2 students understand objects that float in water! 😊
Objective Questions :
Topic of objects that float in water:
- An empty plastic bottle can _____ in water.
- a) sink
- b) float
- c) melt
- d) disappear Answer: b) float
- _____ is a lightweight material that floats in water.
- a) Stone
- b) Iron
- c) Styrofoam
- d) Glass Answer: c) Styrofoam
- Leaves float in water because they are _____.
- a) heavy
- b) wide and flat
- c) small and hard
- d) sharp and pointed Answer: b) wide and flat
- A boat can float in water because it is made of _____.
- a) iron
- b) cement
- c) wood
- d) stone Answer: c) wood
- To test if an object floats, you can _____.
- a) put it in the water
- b) look at it closely
- c) measure its size
- d) hit it with your hand Answer: a) put it in the water
- Objects that float in water are usually _____.
- a) heavy and solid
- b) light and have air inside
- c) dark and rough
- d) sharp and pointed Answer: b) light and have air inside
- Paper can _____ in water.
- a) sink
- b) float
- c) burn
- d) fly Answer: b) float
- Objects that are wide and flat can _____ in water.
- a) float
- b) sink
- c) break
- d) fly Answer: a) float
- A characteristic of objects that float in water is _____.
- a) being dark and heavy
- b) being light and have the right shape
- c) being very soft
- d) being very strong Answer: b) being light and have the right shape
- If an object is heavy, it will _____ in water.
- a) float
- b) sink
- c) swim
- d) break Answer: b) sink
- Cork floats in water because it is filled with _____.
- a) air
- b) water
- c) metal
- d) paper Answer: a) air
- Styrofoam floats in water because it is _____.
- a) small and heavy
- b) large and rough
- c) light and soft
- d) shiny and round Answer: c) light and soft
- To make objects float in water, you can _____.
- a) use heavy materials
- b) use dark colors
- c) use lightweight materials
- d) use hard objects Answer: c) use lightweight materials
- If an object has air inside, it can _____ in water.
- a) fly
- b) float
- c) roll
- d) melt Answer: b) float
- When we place objects in water, we can see if they _____ or _____.
- a) sink, float
- b) melt, break
- c) fly, fall
- d) break, bend Answer: a) sink, float
These questions will help students learn about objects that float in water and their characteristics. 😊
Presentation:
Step 1: The teacher revises the previous topic, which was about air and how objects float in air. Third Term Mid Term Test Basic Science Primary 2 Third Term Lesson Notes Week 7
Step 2: The teacher introduces the new topic, explaining that some objects float in water because they are lightweight and have air inside.
Step 3: The teacher allows the pupils to give their own examples of objects that float in water and corrects them when necessary.
Teacher’s Activities:
- Show different objects to the pupils and ask if they think each one will float or sink.
- Demonstrate how each object behaves when placed in water.
Learners’ Activities:
- Observe the teacher’s demonstration and share their thoughts on each object’s ability to float.
- Try placing objects in the water and watch how they behave.
Assessment:
- Ask the pupils to identify objects that float in water.
- Have the pupils describe the characteristics of objects that float in water.
- Ask the pupils to demonstrate how to make objects float in water.
Evaluation Questions:
- What does it mean when an object floats in water?
- Name an object that floats in water.
- Why do wooden sticks float in water?
- How do leaves behave when placed in water?
- What characteristic helps objects float in water?
- What is an example of a lightweight object that floats in water?
- What happens to objects that are heavy when placed in water?
- Why does Styrofoam float in water?
- What material is commonly used for floating objects?
- What kind of shape helps an object float in water?
Conclusion:
- The teacher goes around the class to mark pupils’ work and answer any questions they may have.
- Reinforce the learning points by summarizing the topic and discussing the importance of understanding objects that float in water.
