an eraser erases by the material it is made of and rubber is one of those materials, it mostly makes lead "dissapear" from the paper because of friction Also, if you rub someone's face with an eraser it will make their face disappear from their head because of friction!(not)
the average is 150 cubic centimeters
You multiply its density by its volume.
"Julia, may I borrow your eraser?"
the eraser
No. It is "rubber" or a synthetic form of it. That is why it is called a rubber eraser and not a steel eraser.
Determine the mas and the volume.
An eraser erases things. A rubber rubs things out.
No, an eraser is made of rubber. Gallium is a metal.
eraser
Rubber
it is made of rubber
Rubber.
Synthetic rubber .
An eraser smells like the mixture of rubber and plastic.
A magic one is an insulator.
The rubber ball, eraser, tyre, shoes, rubber hoses .