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The brilliant Dr. Eureka has important experiments for you to complete! Pick a challenge card, 3 test tubes and 6 colorful balls to solve his scientific formula. Carefully move your materials from tube to tube without dropping them,
Approach KEVA from a whole new angle! Full-color cards include a 2-D building challenge on one side and the solution on the other. Manipulate your KEVA planks to successfully duplicate the balance, proportion, composition and geometry featured...
Use deductive logic skills to chart clues and eliminate incorrect possibilities to find the correct answer. 50 puzzles per book. Solutions included. Reproducible. Ages 11+
Use deductive logic skills to chart clues and eliminate incorrect possibilities to find the correct answer. 50 puzzles per book. Solutions included. Reproducible. Ages 12+