write the letter of the correct answer on space provided
3.which of the following is an example of a chemical change?
a.cutting a broken glass
b.cutting a paper into ong-fourt
c.cutting a piece of wood
d.rusting of a steel wool
4.when the matchstick burned,what will happen?
a.there was change on color,smell and substance
b.no change at all
c.it remains the same
d.none of the above
5.why is rusting chain an example of chemical change
a.because a chain is part of the invironment
b.because it gives a beautiful image after
c.because the characteristic of the chain doesn't change
d.because rust is weak powdery substance during chemical change​