MATTER IS ANYTHING THAT HAS WEIGHT AND TAKES UP A SPACE.
So, our question is... Is air matter? Watch this video to discover!
Second question... What is heavier?
a) A kilogram of lead
b) A kilogram of feathers.
The answer is....
THEY HAVE THE SAME WEIGHT! (1 KILOGRAM)
Now let's learn about the three states of matter:
MATERIALS HAVE DIFFERENT PROPERTIES:
Some materials are thermal conductors and some are thermal insulators:
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Materials can be soft or hard, tough or fragile, plastic or elastic.
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TOUGH
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FRAGILE
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PLASTIC
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ELASTIC
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