What did you notice about the size of the blocks and their density? did it match what you thought? why or why not?

Depending on the materials of the blocks and the size determined there density. This is because the mass of a steel block will be different from the mass of a wood block. This is also because the volume of a steel block could be smaller than the mass of the wood block. When you plug these values into the equation, D=m/v it creates different answers based on the mass and volume of the blocks. I hope this helps! 

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.