[00:00.00]Hi, Sue.
[00:01.45]Hi Mike, so what happened to you last week?
[00:04.28]Oh, I was sick with the flu. 
[00:06.50]What¡¯s this I hear about a big assignment we¡¯ve got to do?
[00:10.21]Well, basically, we¡¯ve got to find two science experiments 
[00:13.63]to do with a group of eight-year-old children at the local primary school, 
[00:17.03]and we¡¯ve got to complete it by the end of the week.
[00:19.66]Oh, that sounds like hard work. 
[00:22.10]Where are we supposed to get the ideas for these experiments from?
[00:25.90]Well, I managed to get hold of two books from the library.
[00:29.54]Oh, well done!
[00:31.01]How about if we take a look at the experiments in this book first and see if anything looks suitable? 
[00:35.59]I can make notes as we go, about equipment and the purpose of the experiments.
[00:40.60]OK, let¡¯s see, um, the first experiment is called ¡°Make your own hovercraft", 
[00:46.82]which sounds very ambitious! 
[00:48.69]Mind you, you only need twenty ballons and a table¡ªyou don¡¯t need any special engines or anything like that!
[00:55.92]What do you do with it all?
[00:58.00]Er, you blow up the ballons and you balance the table on them, upside down of course, 
[01:03.51]and the kids get to ride around on it. You know, the other kids sort of push them around the room. 
[01:09.59]The main purpose is to show how hovercrafls work, and how things hover around on just a chusion of air.
[01:16.58]OK, that  doesn't  sound too bad.
[01:19.56]OK, ready for number two?
[01:22.05]Uh-huh.
[01:23.22]Now this one is called ¡°Unusual Measures of Lengths¡± , and you basically  use lots of paperclips. 
[01:30.46]The kids go around the class measuring things¡ªyou know, how the desk is, 
[01:35.47]and that sort of thing, um, and then they all compare their answers. 
[01:39.57]Er, and basically, because not all paperclips are the same lengths, 
[01:44.68]they should come up  with some strange answers.  
[01:47.26]It's  supposed to demonstrate the importance of having fixed units of measurement.