Why do bees build hexagonal honeycombs instead of square or triangular ones? This project explores which shapes can tile a flat surface without gaps and which shape uses the least material.
You build pentominoes from LEGO bricks and heptiamonds from pattern blocks. You cut wheelbarrow and kite-and-dart pairs from tagboard. Then you test whether each shape can fill a grid or cover a flat plane.
Twelve pentominoes can tile several rectangular grids. All but one of the 24 heptiamonds tile a plane on their own. Using algebra and geometry, you prove that hexagons use less wax than squares or triangles to create the same area.
Hypothesis
The hypothesis is that some shapes can tile an infinite plane while others cannot.
Some shapes can tile a flat surface without gaps — hexagons, squares, and triangles all do this. What sets hexagons apart is efficiency: using algebra and geometry, you can prove that hexagons use less boundary material to enclose the same area than squares or triangles do. Bees exploit exactly this property, building hexagonal honeycombs rather than square or triangular ones to minimize the wax they need.
How much material a shape needs depends directly on the flat space it has to cover. In the Tiling Patterns project, you prove that hexagons use less wax than squares or triangles to create the same area. That result explains why bees choose hexagons — they get the most storage space from the least building material.
Bees build hexagonal honeycombs because hexagons tile a flat surface with no gaps or overlaps — using less wax than squares or triangles to create the same area. This project tests that principle hands-on. You build pentominoes from LEGO bricks and heptiamonds from pattern blocks, then cut wheelbarrow and kite-and-dart pairs from tagboard to experiment with tiling rectangular grids and flat planes. Twelve pentominoes can fill several rectangular grids, and all but one of the 24 heptiamonds can tile a plane on their own. Using algebra and geometry, you then prove why the hexagon's efficiency holds up mathematically.
Why do bees build hexagonal honeycombs instead of squares or triangles? This project explores exactly that question by testing which shapes can tile a flat surface without gaps. Using LEGO bricks, pattern blocks, and tagboard, you build pentominoes, heptiamonds, wheelbarrow pairs, and kite-and-dart pairs, then experiment with tiling rectangular grids and planes. Twelve pentominoes tile several rectangular grids, and all but one of the 24 heptiamonds tile a plane on their own. With algebra and geometry, you then prove that hexagons use less wax than squares or triangles to enclose the same area — which is precisely why bees rely on them.
Method & Materials
You will build pentominoes, heptiamonds, wheelbarrow, and kite #n# dart pairs from legos, pattern blocks, tagboard, and manipulatives. You will then experiment with tiling appropriate rectangular grids and planes using these shapes.
You will need legos, pattern blocks, tagboard, and manipulatives.
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We discovered that some shapes can tile an infinite plane while others cannot. We also found that hexagons are the most efficient shape for tiling, consuming the least amount of wax to create the same amount of area.
Why do this project?
This science project is interesting and unique because it combines mathematics, geometry, and art to explore the fascinating world of tiling and tessellations.
Also Consider
Experiment variations to consider include exploring other shapes that can tile an infinite plane, such as octagons or pentagons, and experimenting with different types of tessellations in nature, such as crystals or snowflakes.
Full project details
Additional information and source material for this project are available below.