We invite you to the show of Ruffa Ruffman - an anthropomorphic dog, which is accessible and fun to explain scientific hypotheses to you in practice. In the game The Ruff Ruffman show Hamster run you have to help the fat hamster get to the sweet carrot. It seems quite close, but there is no path. In the lower right corner are various geometric shapes: rectangles, triangles and squares. Transfer them to the field to fill in the blanks. Do not be afraid if the path seems to be not even. Hamster deftly crosses over low barriers, and if necessary, jumps down.