Formula composition means putting things together in a special way to make something new. Just like how you put together different Legos to make a cool spaceship or a castle, scientists and mathematicians put together different things - called elements - to make chemical compounds or math equations.
Elements are like the different colored Lego blocks - they're the building blocks of everything around us. There are lots of different elements, like oxygen, nitrogen, and carbon. Scientists write the symbol for each element on a special chart called the periodic table. By combining different elements in specific ways, they can make new things with different properties.
For example, if we combine two hydrogen atoms with one oxygen atom, we get a new compound called water! Water is something we use every day - to drink, to take a bath, and even to make plants grow. And just like how Legos can be arranged in different ways to make different things, scientists can combine elements in different ratios to make different compounds, like carbon dioxide or table salt.
Mathematicians use formula composition, too. Instead of combining elements to make new compounds, they combine numbers and symbols to create equations. Just like how 1+1=2, mathematicians can use formulas to describe how things work together in real life. For example, the formula for calculating the area of a rectangle is length x width.
So, formula composition is just like playing with Legos - it's a way for scientists and mathematicians to put things together in a special way to create something new and useful!