Transcription
All right, this is experiment 3.14. Atmospheric pressure and the Exploring Creation with Physical Science textbook already got this stuff. Put a little bit of water in each of the cans. It's actually a pretty quick, simple experiment. And I've got the frying pan, the tongs. Each of these has ice water in it, and we'll just go through the steps. I've already done put a small amount of water in each aluminum can.
First of all, I already have the first three or four steps of my lab filled out. I did a little bit of reading first, which is what we should always do. We should read the introduction—oh, that's right here first—and then read the first part of the lab, right here, for all the supplies. You can do steps 1, 2, 3, and 4. For the introduction, you can actually almost copy that word-for-word. For the objective, step 1, and then the procedure, we just cite the book and then read through all the steps. And that's how you're gonna formulate your hypothesis. Don't read beyond, but I want you to formulate your hypothesis based on that. So let's go ahead and get started.
So I put a little small amount of a little bit of water in each aluminum can, only enough to cover the bottom. Put the two cans in the frying pan. See? Put the frying pan on the stove and turn the heat to high. Let's go ahead and do that now. And then we're gonna wait a little bit, just for them to boil vigorously. While we're waiting for the cans to heat up, let's go ahead—and I already did this—we already—we're gonna put some water and then a lot of ice in each of the bowls so it becomes very, very cold. Wait for steam to start rising out of the opening of each can. That'll tell you the water inside is boiling vigorously.
Step seven: Once a steady stream is coming out of each can, we're going to use the tongs to grab one can, place it upright in one of the bowls of water. And then we're gonna use the tongs to put the other one upside down in the bowl of water, and the other bowl of water. And then we're gonna note what happens in our lab for the data. And then we're gonna clean our mess up. And then we're gonna finish the rest of the lab: the last two steps, the results, which actually are explanations in plain language that just show what we did and what results we got. And then our conclusion, after that, is all based on what we can conclude from our results. And you can actually get some of that from doing the reading in the book, following the lab right here. So let's go ahead—closer to the camera—we got Mr. Coke, and we got Mr. Diet Coke, and then we got Mrs. Agri—see, cooking fish; she's making dinner while I'm doing my lab. That's not stealing from the cans yet; let's just—steaming from Japan—a little bit of moisture in there.
So just to reiterate, while we're waiting for that to boil vigorously, what you want to do is you want—you can—you can do the materials and the procedure; you can just—that's steps three and four—right out to that without doing anything else. To do the hypothesis and the objective, you actually need to read beforehand to be able to do that. You need to read the page before this lab, in this case. And then you'll also need to read through the procedure, but not read beyond the lab. You don't want to read down underneath where this stuff is; you want to read just the lab part so you can formulate your objective and your hypothesis. Your hypothesis, again, is an educated guess as to what's going to happen in the lab. Some of you might already have a good idea as to what's going on. Water's not boiling yet. Looks like it's starting to get hot enough to boil. The coffee maker that I—coffee maker that I get up in the morning and have coffee with my toaster and bagels—unimportant information to this lab. Starting to boil. Starting to boil. All right, remove the book out of the way, just in case I make a little bit of a mess. And the first can we're going to have that steaming is Mr. Coke. We're gonna put him—continues to come out of the can—pull on the can down a little bit—not really much of a difference other than a Coke can floating in the water. This one's not quite boiling yet, so just hang on a second. So it all—it's doing is just kind of cooling down a little bit. I actually—aluminum, like an aluminum can and foil, actually cools down fairly quickly because it's thin, especially foil. So you're still in that—playboy? Yeah, I'm gonna move to the—little more—I'm guessing this one may or may not be a little bit more special; we'll see. I'm still not quite boiling yet, Mr. Diet Coke. I must have put a little bit more water in that one than the other one. Again, not really much of—much to notice from this can. Yeah, anyway, we'll see. Just kind of was about the same way. I got—we don't even have burn marks on the bottom of it. We're just gonna leave that in the—until we get done on this other one. And this one's starting to boil. We are gonna start seeing a little bit of steam coming out at the top. Okay, see the steam coming out at the top and not just around it. We got the steam starting to come out of the top for the boil vigorously, and then I take this. All right, we got passed-up steam. I need him in there. Let's see what happens. Oh, and that was cool. So there you have it. Go ahead and record your observations, and maybe your parents will let you do that at home—and probably not. We might have to do that again. All right, we'll see. All right, let's turn everything off and clean stuff up, and you guys don't need to see me do that. So I hope you enjoyed experiment 3.1. That was kind of exciting. So all right.