Science & Maths: Trains travel different distances on different surfaces – Keep On Track

Science & Maths: Trains travel different distances on different surfaces

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<blockquote class="wp-embedded-content"><a href="http://keepontrack.scoilnet.ie/galway/science/science-maths-trains-travel-different-distances-on-different-surfaces/">Science &amp; Maths: Trains travel different distances on different surfaces</a></blockquote>
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