GRADE 4 UNIT 3 (MELTING AND SOLIDIFY)

Which are solids?

• powder sugar, powder salt, flour

• powder sugar, syrup, ketchup

• sand, liquid milk, syrup

• flour, honey, blood

Different states of matter.

• solid, liquid, gas

• solid, oil, milk

• sand, oil, milk

• oil, milk, syrup

Solid + heat --->

(a)  

Liquid - heat --->

(a)  

Which one is an example of physical process?

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In what state is the ice cream after it is heated?

(a)  

In what state is the water when it is freeze?

(a)  

Which one is an example of physical process?

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When solid melts, it is (a)   heat (energy)

When liquid solidify, it (a)   heat (energy)