lesson
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What happens when you snap two different toy blocks together so tightly that they act like a brand-new toy?
Nature does this every single second to build everything around you!
Nature's Building Blocks
An element is a pure building block that cannot be broken into simpler pieces, like pure oxygen or pure iron.
📊Interactive diagram
What happens when different element blocks link together with super strong science glue?
Making a Compound
A compound forms when two or more different elements are chemically joined together.
📊Interactive diagram
When they join, the elements make something completely new with its own special look and feel.
Can we change how many pieces go into making water whenever we want?
A Fixed Recipe
This rule is the Law of Definite Proportions, which states that a compound always contains the exact same composition of elements by mass and atom count.