Junk modelling Noah’s Ark

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For Today’s lesson you will be making your own Noah’s ark using resources from your house (junk modelling). Please watch the video below for an example of one of the tasks we are setting.

TASK:1

Task 2: Junk model Noah’s Ark

What is buoyancy?

Next watch the BBC Bitesize video clip (which also features a game)

https://www.bbc.co.uk/bitesize/topics/z4qtvcw/articles/zytqj6f –

Evaluation

Now try your Noah’s Ark home-made boat in the bath:

BIG QUESTIONS:

  1. DOES IT SINK?
  2. IF SO, WHY DO YOU THINK IT SANK?
  3. DID IT FLOAT?
  4. WHAT MADE IT A GOOD BOAT?
  5. WHAT WOULD YOU IMPROVE NEXT TIME?

Please send pictures of the before and after the experiment. But no photos of you in the bath.

Floating and sinking

When something is in water, there are two forces acting on it. Its weight and the force of the water pushing up, the upthrust.

If the weight is equal to or less than the upthrust, it floats. Things that float are buoyant.

If the weight is greater than the upthrust, it sinks.