What is change? definition of change and physical and chemical by Aisha

Change is when an object changes either from causes or naturally.
There are 2 types of change: chemical change and physical change.
Change, in general, is when the scientists of the experiment try something
they don't know what the result will be. They make a prediction about it,
then they make a method. After that, they observe and finally see if their
prediction worked and finally come to a conclusion. 

Physical change example: ripping paper. It's when you control it with your hands you rip
the paper.  

Chemical change example: water to ice. It's chemical because when you put water in the
fridge it becomes ice when you put ice on a pan and boil it. It melts and becomes hot water
when its cooldown you have the water you started with.