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The next thing you want is something so incredibly easy. My piece of tape, my helium balloon,
helium has an atomic number of two. Go ahead and tape this to show that's helium. Now I'm
going to go ahead and tape the last thing, and now this is something your dad, your mom
or your gardener does, fertilizer. Three different types of combinations from the periodic table
make up fertilizer. There might be even a little bit more that's in there but these
are the three main ingredients. Put three strings, let's go ahead and let's start off with nitrogen
which has an atomic number of seven and I'm going to go ahead and put this over here and
start off with seven. You can see this is five for boron, six for carbon, seven for
nitrogen and then the next one I'm going to look for is going to be potassium. That has
an atomic number of fifteen, oh actually its phosphorus so I'm going to put Phosphorus
right here, capital "P" to show phosphorus. You can see the string leading to it and the
third and final ingredient is potassium and that actually has a short hand symbol of "K"
and that has an atomic number of nineteen. So if you look over here as far over here
there's potassium. So you've connected up all your items that have to do with the elements
in our everyday lives.