4. How does temperature change affect surface tension?

you keep track of variables in your data table.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

they absorb it i think

not sure

you

sorry, but you do not have posted the diagram.