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The materials required for the science fair project :
- A regular chess player
- A regular sudoku enthusiast
- A Rubic cube expert
- A person who does not  do puzzles or play strategy games (non-player)
- 4 Lego puzzle sets
- 5 photos of shapes built with 20 Lego tiles
- A stopwatch
- An assistant


1. For this science fair project, the independent variable is the participant’s skill   – a chess player, sudoku enthusiast, rubix cube expert and non-player. The dependent variable is  his ability to reconstruct the Lego construction seen in the picture. This is determined by inspecting the Lego construction completed by the participants and counting the correct number of tiles used. The constants (control variables) are the number of Lego tiles used in construction, the length of time the participants are allowed to look at the photo and the time given to the participants to reconstruct the shape seen in the photo.

2. Four participants are selected for this science experiment – a chess player, sudoku enthusiast, rubix cube expert and a non-player. Each participant is given a set of Lego tiles (identical sets should be prepared).

3. The 4 participants are shown the first  photo of a construction created using 20 Lego tiles. They are allowed to look at the photo for 30 seconds. After that the participants are given 5 minutes to reconstruct the shape in the photo using the Lego set provided.

4. After the 5 minutes,  the number of tiles placed correctly within each participants construction, is counted and recorded in the table given below.

5.  Procedures 4 and 5  are repeated using the remaining  4 photos of Lego constructions.

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Complexity level:
Project cost ($):
Time required:
1hour to prepare, 2 hours for the science fair project experiment
Material availability:
Lego sets can be purchased at a toy store (eg. Toys R Us)
Safety concerns:

Basic safety requirements