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Use the foam tangrams to complete the puzzles on the illustrated activity cards
Filled with sand or water
Mounted on a sturdy stand with free-rolling wheels for easy mobility
texture and permeability
Trundle wheel – to measure distances (1 click = 1 metre)
Investigating Resistivity (NBO) Use the foam tangrams toLow cost apparatus for student investigation into resistance, length and cross sectional area Also acts as a bridge or potentiometer. This 40cm Resistance Board is designed to allow students to investigate resistance quantitively. The board is fitted with 4mm terminals connected by a length of resistance wire against a scale, and a jockey. Wire samples are provided. These are 0. 30mm, 0. 44mm and 0. 54mm in diameter. Experiments into the relationship
