Explain why it is important to eat the wet sand before heating the iron wool​

Iron is a metal.

Iron wool is made up of thin strands of

iron loosely bundled together.

Your teacher has attached a piece of

iron wool to a see-saw balance. At the

other end of the see-saw is a piece of

Plasticine.

Iron wool can combust. Your teacher is

going to make the iron wool combust by

heating it.

If there is a change in mass, the see-saw

will either tip to the left or to the right.

Explanation:

huh,eat wet sand b4heating iron wool??

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )