1) You can make a skeletal system by folding white paper.
2) With waste materials, you can make a scenery with matchsticks, forming the fence; green clay, forming the ground; handmade paper, forming a basic house; and sharpenings to form flower petals.

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I would recommend that in science model you can make a windmill. These are some steps:
First take four wooden card boards whose ends are flattened and the other ends are pointed.
Then join them together at the top with some glue.
Then make a hole not more than 1 cm or just make a pin sized hole and that will be the place for the fan.
Then take a plastic fan not of much weight and fix it with a wire,so that it moves smoothly.
And then finally place it on a card board large than its own size and place the model of windmill.
Then place the windmill in front of a table fan so that the blades of the fan move round.
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