Unit 3 Activity 1 Where is the air
1. The air fills our lives, without color or smell, we cannot see or touch it.
2. Air Occupying Space Experiment:
3. In life, air can be filled with balloons, basketballs, swimming rings,
bubble bags and other items, and it can be detected that the air occupies
space and has no fixed shape.
balloons balloon basketball basketball
Activity 2 What other properties does air have?
1. Air flow will form wind.
2. Use the palm of your hand to feel the phenomenon of air flow, when the wind
blows, the palm feels cool.
3. Observe the phenomenon of various objects fluttering with the wind, and you
can know the strength of the wind. For example, look at the height of the
hair or flag, the speed of the windmill, etc.
4. Air compression experiment:
5. Use air to flow, take up space, and be compressed
and other characteristics, and can design and make toys such as simple air
transmitters.
Activity 3 Is clean air important?
1.Air is closely related to our lives, and both animals and plants need it to
survive. Air also serves various purposes, such as inflated swimming rings
that help with buoyancy; Wind can help plants spread seeds, and wind can also
propel sails on the sea, etc.
2. For the survival of living things, it is necessary to maintain fresh and
clean air to avoid air pollution or poor air quality. Environmentally friendly
and low-pollution practices can be encouraged, such as taking public
transportation and cycling.
