Question: what is the difference between yellow zucchini and summer squash?
Answer: The Difference Between Zucchini and Yellow Squash. Besides the color, the main difference between the two vegetables is the shape. Zucchini is straight, while yellow squash has a fat bottom and tapers towards the neck. ... These summer squash varieties include zucchini, many types of yellow summer squash, and pattypans.