Exercise 1 solution

Example answer (yours will differ):
Spot A (back of the plot): holds, then crumbles when poked. Closest to loam. Drains well and holds nutrients.
Spot B (by the fence): stays in a sticky lump and rolls into a ribbon. Clay. Drains slowly, holds nutrients, warms late in spring.
Spot C (bag of topsoil): falls apart at once and feels gritty. Sandy. Drains fast and needs frequent watering and feeding.
Next step: add organic matter to B and C; leave A mostly alone.