PRIMARY 2: BASIC SCIENCE – SECOND TERM | WEEK 2

TOPIC: THINGS THAT FLOAT IN THE AIR

A: TEACHING AND LEARNING
MATERIALS

1. Feather.
2. Small pieces of paper.
3. Balloon.
4. Nylon bag.
5. Kite.
6. Stone.
7. Picture cards.
8. Pupils’ writing books and pencils.

B: REFERENCE MATERIALS

1. Scheme of work.
2. Recommended Basic Science textbook for Primary 2.
3. Online educational resources.

C: PREVIOUS KNOWLEDGE

The pupils have learnt that wind is moving air and that moving air
can move leaves, papers and other light objects.

D: PERFORMANCE OBJECTIVES

By the end of the lesson, pupils should be able to:

1. Explain the meaning of floating.
2. Identify objects that can float in air.
3. Mention examples of objects that float in air.
4. Compare light and heavy objects in air.
5. Observe the effect of moving air on light objects.

E: CONTENT

Meaning of Floating

Floating means staying up or moving without quickly
falling to the ground. Some light objects can remain in the air for some
time.

Objects That Float in Air

Examples include: 🪶 Feather. 🎈 Balloon. 🪁 Kite. 📄 Small pieces of
paper. 🛍️ Light nylon bag. Some seeds and dry leaves can also be carried
by wind.

Why Some Objects Float in
Air

Light objects are easier for moving air to carry. For example: 🌬️ +
🪶 = the feather moves easily. A heavy stone does not float easily in
the air.

Light and Heavy Objects

Light objects include:

• Feather.
• Paper.
• Dry leaf.
• Balloon.

Heavy objects include:

• Stone.
• Brick.
• Large metal object.

Heavy objects are harder for ordinary wind to carry.

F: LESSON PRESENTATION

F1: Teachers’ Activities

1. Revises the meaning of wind.
2. Introduces the meaning of floating.
3. Drops a feather and a stone for pupils to observe.
4. Blows small pieces of paper.
5. Shows a balloon and kite.
6. Guides pupils to identify objects that float in air.
7. Discusses the difference between light and heavy objects.

F2: Pupils’ Activities

1. Observe a feather falling slowly.
2. Observe a stone falling quickly.
3. Blow small pieces of paper.
4. Name objects that float in air.
5. Sort objects into light and heavy groups.
6. State which objects are easier for wind to carry.

G: CONCLUSION

The teacher explains that light objects such as feathers, balloons
and pieces of paper can float or be carried in the air more easily than
heavy objects.

H: EVALUATION GUIDE

Pupils should be able to answer the following questions:

1. What does floating mean?
2. Mention three things that can float in air.
3. Which is easier for wind to carry: a feather or a stone?
4. Is a balloon light or heavy?
5. Mention two heavy objects.
6. Complete: A ______ can fly in the air when there is wind.