physical and chemical reactioins

Question 1

what is matter

Answer 1

matter is everything around you atoms and molecules

Question 2

what are the 3 main states of matter

Answer 2

liquid solid gas

Question 3

what is chemical change

Answer 3

When one substance has changed into a different chemical​ The atoms are rearranged to create new substances​

Question 4

what is physical change

Answer 4

when there is no new substances just change of state

Question 5

how to spot chemical reaction

Answer 5

change colour​

give off a gas​

get hot​

get cold​

give out light​

make smells​

form solids.​