 Hey, welcome back to kids fun science. My name is Ken today's experiment is with pine cones So pine cones are designed by mother nature to open up when they're dry So they have a better chance to reseed another tree, right? So but can we reverse that and the answer is yes, and we're gonna do that in today's experiment So what we're gonna do is we're gonna put a pine cone in a little bit of water And we're gonna time-lapse it and we're gonna see if it'll close all the way up and then for the second experiment What we're gonna do is put the wet pine cone that's closed up Into the oven and we're gonna see if we can heat it up to get it back to being dry and open up So we're gonna do that next and the science behind it Please remember to click that subscribe button as we'll have a new experiment every week So the first experiment is just a jar with room temperature water and a pine cone Which I put a couple fishing weights on To hold it down Otherwise the pine cone wants to float to the top and it just thought it looked better this way So now I've got it into time-lapse mode So it's taken a picture and won't take as long to see the results And you'll be able to see the pine cone start to close up which is pretty amazing interesting fun fact is But this is a pine cones are male and female and the hard pine cones like this hard shell are female pine cones And there you go It took about two and a half hours to fully close up in room temperature water So now the second experiment I'm gonna add one experiment. I've put in a hot tap water this time Same thing with two fishing weights. I'm gonna turn the jar off and then start it in time-lapse mode again and I just wanted to see if it was gonna be a different results and it was totally different you can see it closing so much quicker In the hot tap water compared to the room temperature water took two and a half hours a very long time This is almost completely done and it only took just about an hour to close all the way So the hot water definitely affects the pine cone and closes a lot quicker, which I thought was really cool So the science behind pine cones is did you know that female pine cones open and close depending on the weather? It's true when the female pine cone is warm and in a dry place the pine cone opens up and exposes the cone seeds Which is in a damp and cold place the scales close up tightly as we saw in the water That's how the female pine cone protects its seeds She keeps them safe in the rain and cold air and watch as we watch this time Laps in the video you saw that in the action So when you put your pine cones in the water That it's wet and so they'll close up and when you put them in the oven it's dry and they open up And that's so that's pretty much a science band the pine cone on how it protects its seeds look in the description for more fun facts and science about Pine cones and males and females and how they pollinate And I have one more experiment So we start the oven at 350 degrees and make sure you have adult supervision here And you take your pine cones that we just closed up with the water and we put them into the oven And we're going to in 15 minutes now we're going to do every 15 minutes We can see they're starting to open up a little bit. Remember the oven was set 350 degrees 30 minutes later you can see they're starting to open up as they dry up The pine cone is being tricked because it thinks it's warm weather We're 45 minutes and it's starting to open up almost all the way The one on the left a little bit slower than the one the right One hour at 350 degrees and it's getting very very close Maybe just one more check on this and we'll see And here we go The last one they're completely open at one hour and 15 minutes a very fun experiment Please remember to comment below. I got the results next here We were took two hours and 30 minutes for the regular temperature Room temperature water and the hot tap water which surprised me only took one hour