🌼 Wattle Science

FREE PRIMARY SCIENCE · Year 5

Air: the invisible stuff

If we can’t see air, how do we know it is made of anything at all?

Students prove that “empty” cups and bags are full of air, learn how scientists over 2000 years, including a botanist who had explored Australia, built the evidence that matter is made of tiny moving particles, then read data showing that pumping air into a ball makes it heavier and harder. Lesson 1 uses cups, paper towel, a tub of water and plastic bags; lessons 2 and 3 need only a screen or printout, paper and pencils.

3 free lessons · Australian Curriculum v9

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Lessons in this topic

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  1. Is air really something?

    Can an “empty” cup keep a piece of paper dry underwater?

    Materials needed · AC9S5U04, AC9S5I01, AC9S5I03

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  2. Seeing the jiggle

    How did scientists prove that matter is made of tiny moving particles?

    No materials needed · AC9S5U04, AC9S5H01, AC9S5I06

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  3. Pump it up

    Does pumping air into a ball make it heavier?

    No materials needed · AC9S5U04, AC9S5I01, AC9S5I04, AC9S5I05

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