Discussion Topic A system is a group of parts that can be considered one unit. Storm systems,
ecosystems, and our bodies are natural systems. Cars and houses are human-made
systems.
Choose an example of a system, and analyze the energy flow through the system.
Describe in detail how energy enters the system, how energy changes form while in the
system, and how energy leaves the system.

So what you would do is go through and add 3 teaspoons(tsp) 6 times because of the 6 tablespoons(tbsp). which will give you an answer of 18. another way is to multiply 3x6=18.

It's called the falling actionwrong subject by the way

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.