The change in the properties of water as it boils or freezes are, after all, quite similar to changes that are chemical.
(it; boils; ) (The change in the properties of water as it boils or freezes; are; after all, quite similar to changes) (changes; are; chemical)
it The change in the properties of water as it boils or freezes changes
boils are are
after all, quite similar to changes
chemical