Hearth and Home (S04E13)

Sara and Felix are in dire need of a science project for school when they stumble upon the ideal one in Jasper's workshop. Just then, Aunt Eliza pays an unexpected visit. However, with the chilly weather and the busy lambing season, her arrival isn’t exactly welcomed. Exhausted and overwhelmed, Janet and Alec make some harsh comments about Eliza, causing her to flee. Fortunately, the science project not only helps to warm up a shivering Eliza but also keeps the barn and the newborn lambs cozy. [I suppose that puts a twist on my favorite quote from the episode, right, Felix?]