SCIENCE 19. A teacher wants to model for young children that matter is not destroyed when it changes. Which of the following models would best
show this to the children? *
a. boiling an ice cube so that it changes into gas
b. burning a piece of paper so that it will change into ash and smoke
c. taking a cup of water, pouring it onto sand, and watching the sand absorb it
d. weighing a piece of clay and then changing the shape of it and weighing it
againOption 1

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -

Idon't know it i just need my points lol