LAUREN:Today's Dengineers are the amazing folk of Claire House children's hospice which is a Children in Need supported project.
CHILD #1:Dengineers, we really need your help to build us an awesome den for our new hospice.
CHILD #2:Where we can make lasting memories with our friends and families.
SEGE:Now I know all your Dengineers couldn't be here today but I'm going to explain the den to you so you can go away and tell all your friends, yeah?
SEGE:I think we should create a bit of a village that's all up in the air on stilts. Does that sound good?
CHILD #3:Yeah.
SEGE:I've designed these places where you can all go and hang out, all your parents and your friends and your siblings and just have a lot of fun in your own little wonderland.
BOTH:Yeah.
SEGE:So am I good to go then? Is this the sign off? Can I get started?
BOTH:Yeah.
SEGE:Fantastic. I can't wait.
JOE:Sege's plans for our biggest den ever have been given the stamp of approval from the Dengineers.
LAUREN:He's designed a treehouse inspired village including places to communicate, party and chill out with friends and family. As if that wasn't huge enough Sege has also designed a zipline which is accessible for every child at the hospice and a happy path, which will contain hundreds of happy memories sent in by CBBC viewers.
LAUREN:Mr. Ben Shires is having a closer look at the den's wonderful water wheel.
JOE:And he wants to pick Sege's brains about the effect these waterworks have on the environment.
BEN:Won't you need to leave the tap running 24/7 so it keeps on turning round?
SEGE:Ah no well you see Ben, we've come up with a really cool engineering solution.
SEGE:So if I take this and drop it in, so you need to imagine… that this is our waterwheel in our water pit.
BEN:I'm there.
SEGE:OK. The pit has to have water in it to start with and inside is a little electrical pump.
SEGE:OK, the pump sucks the water up through a hose, up onto this part of the water wheel. So if I just demonstrate to you what happens then. The water starts to fill these buckets up.
SEGE:OK, can you see the buckets in the water wheel?
BEN:Yeah it's getting full.
SEGE:Yeah and as they fill up the water wheel starts to move.
BEN:Sege! Oh it's science Sege. I love it.
SEGE:Look, and then – And then – And as it drops down what actually happens is all the water from the buckets drops back into the pit and then the pump does the same job all over again.
SEGE:Sucks the water in up through the hose and back round. So actually, we're not wasting any water we're just constantly using the same water. I mean, how cool of an engineering idea is that?
BEN:That is incredible.
JOE:'This water wheel has been engineered to sit in a pit 'which has a clever pump to send the water to the top of the wheel 'for it to fall back down via the buckets. 'The process repeats over and over again 'constantly recycling the water in the pit.'
Presenters Lauren Layfield and Joe Tracini and The Dengineers team help the kids from Claire House Children's Hospice create a tree-house inspired village den.
They take a closer look at the den's water wheel, and demonstrate how they have made it environmentally friendly.
The wheel needs a constant flow of water to keep it moving so, to avoid leaving a tap running, the team have had a pump fitted to the wheel that sucks water up from the pit and transports it to the top of the wheel.
As the water drops back into the bottom it's sucked back up by the pump, through the hose and back round the wheel.
This means the water is constantly recycled.
Teacher Notes
This could be used to introduce the process of design, and as a prompt for class discussion and learning in areas such as initial research, designing and making a structure.
Pupils could look at how a water wheel works, and investigate how the water keeps it turning.
They could come up with other ways the den could be made environmentally friendly.
Curriculum Notes
This clip will be relevant for teaching Design and Technology at KS2 in England, Wales, and Northern Ireland and 1st and 2nd level in Scotland.
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