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WHAT FLOATS YOUR BOAT?

Learn about floating objects by building a boat

Suitable For

Grade 2

Difficulty

2

Time Required

 <1 Hour

Supervision

Advised

What’s it about?

‘Matter’ is everything in the universe that has mass and occupies space. ‘Density’ is a physical property that all mater possess. ‘Density’ can be used to compare two substances that have the same ‘volume’, but their ‘mass’ is not the same. This means that they contain different amounts of ‘matter’.

Objects with more weight or ‘mass’ per given volume is ‘denser’ than objects with less ‘mass’ per the same volume. When such objects are put together, less dense substances will always ‘float’ on top of more dense substances. Let’s see how this works with the following science experiment:

Topics covered

Density

What will I need?

  • ALUMINIUM FOIL
  • METAL WASHERS

Procedure (Method)

Unfortunately, this section is only available in the e-book version of the project.

How does it work?

Unfortunately, this section is only available in the e-book version of the project.

This science experiment works because less dense objects always float on more dense objects. Water is a very dense substance and the aluminium foil boat floats on top of it because its mass is less than the mass of an equal volume of water it displaces. A boat will be able to carry weight, including its own weight, more or less equal in mass to the amount of water that the body of the boat displaces or ‘push out of place’.

Like the sound of it?

Why not check out the full worksheet in one of our popular e-books?

This particular science project can be found in any of the following Experiland e-books:

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A project introduction and background, complete listing of required materials, step-by-step instructions on how to carry out the project, why it works, learn more section, as well as a science glossary with all the relevant terms make up each of the all-inclusive science project worksheets in our e-books!

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