1) Which of these is an object? a) metal b) saucepan c) plastic 2) Which property describes glass? a) smooth b) rough c) opaque 3) Which material is best to make a t-shirt? a) rubber b) paper c) fabric 4) Which property means the same as see-through? a) transparent b) opaque c) rigid 5) Which property if the opposite of stretchy? a) flexible b) rough c) stiff

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