Your teacher gives you a tray full of building blocks. If you weigh the tray of blocks before you start building a house and after you are done building a house, will the blocks weigh the same or different? Why?
They will weigh the same. This is a physical change.
They will weigh the same. This is a chemical change.
They will weigh less. This is a physical change.
They will weigh more. This is a physical change.