Many seed pods split and twist when they dry. The two halves of the pod wall have fibres running in different directions, so they shrink by different amounts. In this worksheet students measure the curl of dried pods and build a paper model that bends the same way.
A leaf delivers water to every cell through a branching network of veins. Thick veins split into thinner ones, and small loops give water a second route if a vein is cut. Students trace a leaf, count branch levels and design a cooling channel for a phone case.
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Many seed pods split and twist when they dry. The two halves of the pod wall have fibres running in different directions, so they shrink by different amounts. In this worksheet students measure the curl of dried pods and build a paper model that bends the same way.
Team PHYLLO Rangers
A leaf delivers water to every cell through a branching network of veins. Thick veins split into thinner ones, and small loops give water a second route if a vein is cut. Students trace a leaf, count branch levels and design a cooling channel for a phone case.
Team PHYLLO Rangers
Bees store honey in hexagonal cells. Of the shapes that fill a flat surface without gaps, the hexagon encloses the largest area for the shortest wall. Students compare triangles, squares and hexagons of equal area and measure the length of wall each one needs.
Team PHYLLO Rangers