We are here again to answer the following questions:
– What happens if you eat something that is radioactive?
– How is coal made?
– What are some other poisonous gases, apart from carbon monoxide?
– How many moons are there in our Solar system?
Presenters: Mr Walker and Edward Simpson
Camera Operator: Isaac Ford
Editor: Isaac Ford
Efforts have been made to ensure credit has been given for pictures used where the source has been clear. Do let us know if we have missed anything.
Hello and welcome to in the lab now I’m Mr Walker and today this is my guest presenter hello my name is Edward I’m from eight Normandy excellent stuff so we are going to be doing another question and answer video we’ve had lots of questions and today we’re going to get straight into
Question number one over to you Edward so what happens if you eat something radioactive uh this is a question from our burning questions board remember you can add them onto the board go to the science Corridor write them on a note put them into the board what was the
Question again what happens if you eat something radioactive eat something radioactive well do you know what you are eating radioactive stuff every single day because pretty much everything is radioactive but to a very very small degree but what happens if you eat something that is terribly radioactive that’s damaging what do you
Reckon tell us what you think so when you eat something radioactive it will start to intoxicate Your Blood Cuz radiation yeah creates poisons so it will slowly kill you from the inside out okay interesting stuff I like it well I don’t like the effects
But I like the answer um let me tell you this though there are some foods that are a little bit more radioactive than others Brazil not are quite radioactive and so are bananas now a picture is coming up on the screen that you can see
And it shows you that if you have one banana then you have 0.1 micro CTS of radiation now micro SE is just a way of measuring the amount of radiation so you can see on this picture that that’s not actually very bad because 2.7 CZ is the standard background radiation that you
Would have in a year 0.1 micro CTS is absolutely tiny so you need thousands of bananas to have the usual amount of background radiation that means the amount of radiation that you’re affected by just by you and me walking around on the planet it’s hitting us from space
And from all the rocks in the Earth all the time now you might notice on there It also says right at the bottom you need to have 50 million bananas before the radioactivity in the bananas actually kills you so a lethal dose is massive do you think you can manage 50
Million bananas no but Donkey Kong would Donkey Kong good should we try it in a future video yeah yeah you want to try it well maybe we will maybe on health grounds we won’t because it would actually kill Edward if he could eat 50 million bananas probably because of the
Sugar before anything else um but that’s bananas basically you don’t have to worry about your food what would happen is Edward right if we were to have something really dangerous like an alpha or a beta or a gamma source of radiation that’s really really really damaging
Really dangerous um is he right yes he is it is dangerous it is toxic to to you it would damage you as you ate it do you know what it would damage specifically putting you on the spot here Edward what you reckon you mentioned the blood it
Would damage the blood it would kill the white blood cells because it damages your bone marrow anything else the liver it would damage it would damage the liver anything else your heart it would damage the heart anything else basically he can name anything here what else would it
Damage your foot bones your foot bones it would damage every part you specifically the stuff near the digestive system liver and heart but it would damage all of your body because your blood travels everywhere and the radiation would be also carried everywhere so yeah it wouldn’t be nice
It damages the DNA in your cells as well so it causes mutations and the cells would replicate without control and what’s that called I think some of you at home might know the answer begins with c often called The Big C it’s called cancer that’s the one it
Gives you cancer so all sorts of dangerous and horrible effects with radioactivity well so we have a nicer question Edward question number two how is coal made how is coal made H I’m going to go over to you what do you think how’s it made so as The Rock Cycle
Goes on uh sediments are carried down mountains and compressed underwater then they travel back down into the Earth and then they rise up through T tectonic plates oh I see so you’re talking about the rock cycle here interesting and what kind of rock is coal a sedimentary rock
And here’s a picture on screen in case you’re not sure what cole looks for this is coal Edward’s right it’s a sedimentary rock um living material that gets squashed and compressed at the bottom of a riverbed first forms something called Peete which you can burn but then when it’s squashed even
More and there’s lots of fine layers pushed together together you get coal it’s very carbon rich and this is what we like to burn now here’s a picture of that whole process happening of the pressure occurring and a sedimentary rock called coal forming now Edward what
Happens if we get coal and we compress it even more when it gets pushed further down into the Earth squashed and squashed heat and pressure what does it make uh lava not quite not quite rocks would form that but actually we get a mineral that’s formed when we squash
Coal enough we get a specific mineral it’s transparent it’s often Priceless and people might wear them on jewelry on their Rings maybe on bracelets begins with d a diamond excellent stuff it’s a diamond that’s how you get diamond when you squash it it’s an ultra compressed
Piece of coal and here’s a picture of a diamond if you would like to see it there we go we have got Diamond we’ve gone all the way from coal down to Diamond so that’s how coal is made and then we dig it up and less and less
Nowadays but we can still burn it for the heat it gives off question number three Edward what have we got what are some other poisonous gases than carbon monoxide oh yes and that was a burning question wasn’t it so who’s that from Izzy gide in nin chuda oh thank you very
Much Izzy question from Izzy there um do you know any more poisonous gases can you think of any methane methane well if there’s enough methane in the air we are suffocated because we need oxygen at the level that it is now about 20% if there’s not as much oxygen if we release
Lots of methane oh dear we are going to die but it’s not strictly a poisonous gas in the same sense you see you can breathe in a little bit of methane and it’s not really going to harm you you just breathe it back out again so anything that you’d breathe in and it
Would damage you what do you think any other ideas he’s thinking can you hear the cogs whing I can’t shall I tell you go on then go on then I’ll tell you there’s quite a few and you might have heard of these chlorine is one gas that
Is poisonous now here is a picture of a chlorine um gas cloud that was released this was actually a test to see what would happen on the environment and as you can see it’s a horrible yellowy slightly greeny gas cloud that spreads out used to be used in the first first
World war it was called mustard gas and they used to throw it on the enemies and it would cause them to choke and they would literally cough up their lungs it was horrible stuff it was banned so you’re not allowed to use it in Wars because it is that bad now there’s
Another one another poisonous gas you might have heard of this it’s called sulfur dioxide now sometimes we make it in the lab in small quantities and that’s okay there’s only a tiny little bit but if you get a huge cloud of it and pollution contains a lot of sulfur
Dioxide out of factories and sometimes out of cars and all kinds of processes is released into the air do you know what sulfur dioxide can cause in the air I’m putting Edward on the spot here it’s a really tough one I’m going to give you some Clues it reacts with the water and
It makes sulfuric acid and that water Rains Down on the earth do you know what that’s called sulfuric acid and it rains there a clue there suuri acid acidic rain oh you’re so close the official term is acid rain you’ve got it and there’s a picture on the screen now of what can
Happen to a forest that has had acid rain on it it looks like a fire has swept through the whole Forest it’s actually just acid rain it contains sulfuric acid and it’s damaging to the forest it’s damaging to people it’s damaging to all sorts of things now
There’s a third one I’m going to tell you about it’s called hydrogen cyanide now that is another one that is really horrible you might have heard in Murder Mysteries cyanide being used hydrogen cyanide is a gas very similar and if you breathe that in you would choke you
Would feel all of your respiratory system Contracting and you wouldn’t be able to breathe now that’s just three there’s loads of them out there don’t go hunting for them because they don’t do you any good at all um and really don’t try and produce them if you’re going to
Ever make them in a job it has to be done under really control conditions so don’t ever try and make anything that you know is dangerous if you’re not being paid for it and you’re not following the safety precautions so we’ve had three questions today now I’ve
Got another question for you I’ve given you so many questions Edward but are you ready for the killer question it was also handed in as a burning question how many moons are there in our solar system in total what do you think Earth has one m has two so that’s three he’s doing
Well there’s about 15 Saturn okay so about 53 and then there’s around 200 in Jupiter so between 250 and 350 okay oh interesting interesting yes so between 250 350 the answer is 290 so that range was correct and to be honest that range is probably closer because we haven’t discovered them all
Yet we keep discovering them every year and in fact Saturn keeps making more moons they’re like little Moon babies they’re coming out of the Rings of Saturn and they detach and they make actual moons so very soon 350 will be the correct answer maybe even more okay
We have finished our questions for today so thank you very much for tuning in and thank you Edward as well bye for now make sure to like And subscribe and hit the notification Bell ding ding Ding Subscribe like Unsubscribe