Kit did her experiment to find out if the type of dirt affected the growth rate of different sunflower seeds. She used dirt from the yard, polished gravel, and fortified dirt from the store. The Expensive store dirt had both faster germination, and greater rate of growth in the 20 day period. The polished gravel seed germinated, then just shriveled up.
The Boy measured how long it took various dryer loads of wet towels (by weight) to dry. He determined that a very full load is more efficient than a smaller load, but then a limit is reached where it becomes less efficient with a large load.
Now we get our weekends back. :)