Standard Science Primary 4 Matter

Why can a sponge be compressed even though it is a solid?

A It is made of gas.
B It is a liquid in disguise.
C It has air trapped in its pores.
D Its particles are far apart.
Show Worked Solution

Worked Solution

Step 1: A sponge has many small holes (pores). Step 2: These holes contain air (a gas). Step 3: When squeezed, the air is pushed out, allowing the solid structure to collapse slightly.

Correct answer: It has air trapped in its pores.

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