A rubber band is a flexible material because it goes back to its original shape when we stretch and release it., True, False, Materials that have bumps and uneven surfaces on them are called smooth materials., True , False, A glass cup is a hard material, but it is also fragile because it breaks easily when dropped., True, False, When we press our fingers on materials like rocks and stones, their shapes change immediately., True , False, A kitchen sponge is soft because we can squeeze it, and it is also rough because its surface has bumps., True , False.

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