Usually the term <em>elliptical </em>refers to the oval-like shape of a substance or path of an object. The question states, "Planets in our solar system do not revolve around the sun in perfect circles. Their orbits are more like ovals." Because the planets orbit around the sun in an oval-like path, those orbits can be described as <em>elliptical. </em>Scientists also normally use this word to describe the same thing; Therefore, your answer is elliptical.
