 Hello, this is Professor Steven Nesheva, and I want to help you out with some initial graphics skills, and this has to do with the decomposition of ozone. So when you're going to enter these data that I've provided you, you know, the first time might be zero, and the second time, you know, is 100 seconds. Now I could do 200 seconds here, which would be fine, but the thing is, once you have established a trend, if you highlight both of those, then when you go to drag down it automatically knows how to do that, so I'm just going to do that up to 600. Now in terms of the actual numbers here, you know, what you should be doing is entering these in scientific notation. So the first number is one times ten to minus four, the second number is 8.96 times ten to the minus five, and so on, and I'm just going to skip to where I've already done all that. Now the third thing that we're going to want you to do is to make a graph of this, and the easy way to do this is you can even grab the header part up there, and what we're going to do is go to insert, and I want to insert a chart, and the kind of chart that we want is an XY scatter, and that's what it's done here. Now that turns out that's just a little bit bigger than I want, so I'm going to make it smaller, and so there's our graph. It's time on this axis, concentration on this axis. There's a few more cosmetic things. You know, it's given me space up to 700 there, so I just double clicked on that, and I really only wanted to go up to 600. So there's that, and let's see other options that we can do is what if I don't want to have circles on there, then I can go over here to this marker set, and instead of under marker options instead of a circle, you know I can choose a square, stuff like that, and of course you can change different colors as you wish, and so that's included on here, that's what I want, so we can change colors, and that's pretty much what we want you to do as far as plotting the experimental data of the decomposition of ozone.