so now what do you do with molten lava? you pour it into the pool to see what will happen. >> what? g. >> yes. >> some people have wondered if you fall into lava, will you sink or will you stay on top? >> you're basically just going to burn instantly. >> kevin is not going to jump into a hot pit of lava. instead he will take a piece of chicken and find out what happens to the flesh. >> makes sense that you would immediately ignite. >> it doesn't sink. the weight of the chicken just sits on top, cooks up quick. >>> what would happen if we pour lava on to a glass plate filled with plastic toys? >> oh! >> he answered the question i never even thought to ask. >> what would happen? >> what would happen. >> wow! >>> these little guys know how to get the day started right. at this school in south africa you see this video that is getting hundreds of thousands of views because these little kids, when they show up to class, they pick at the morning greeting they would like to receive and give. >> videos of kids doing this are going viral. i'm here for all of it. it's so cute. >> it's really b

when it was still hot inside, molten lava spewed out and we had this lot of lava flows on the near sideounger rock. 0n the far side, it is much rockier, it is much more cratered, it is a thicker, older crust and we have never explored that. we think it is more of the pristine, original moon. news from outer space. scientists hope the new test will lead to a simpler, cheaper method of spotting cancer earlier. professor rebecca fitzgerald, from cancer research uk, says the tests are in the early stages, but the initial results are positive. one of the problems is, with diagnosing cancer early is, you have to really make the tests as easy as possible because often, people are quite reluctant to go to the hospital for checkups if your symptoms are quite subtle, or it may be even before you have symptoms at all. so the test needs to be something ideally that you could do right at the gp's surgery, in a really noninvasive, simple—to—do way. and a breathalyser is so simple and potentially fits the bill really well. you just simply breathe into a mask for ten minutes and collect all those thous