MY SCIENCE JOURNEY CHOW LAI PENG D045816 W08
CHOW LAI PENG D20102045816 ( W08 ) SCIENCE YEAR 4 BLOG
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Lesson 26: Choose Suitable Materials
We use heat insulators to keep things hot or cold. These heat insulators trap air and therefore, cuts down heat from going through the material.
( A ) Polystyrene material
contain trapped air
good insulators of heat
used to make food containers
( B ) Towel
used to wrap hot things to keep them warm
used to wrap frozen things to keep them cold
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