Science instructors sometimes avoid inquiry-based activities due to limited classroom time. Inquiry takes time, as students choose problems, design experiments, obtain materials, conduct investigations, gather data, communicate results, and discuss their experiments. While there are no quick solutions to time concerns, the 5E learning cycle seeks to minimize time demands (Bybee 1997). The author used the phases of the 5E learning cycle--engagement, exploration, explanation, extension, and evaluation--as a guide when creating a lesson that teaches students about sunscreens and ultraviolet (UV) radiation. The beginning of the school year is a good time to discuss the importance of sunscreen and ultraviolet radiation because summer is still fresh in the minds of students who are returning from an extended vacation. This lesson would also work well as an end-of-the-year, presummer reminder for students to take care of their skin during the hot summer months. Teachers can also discuss sunscreens and UV radiation at anytime throughout the school year, especially during lessons about the sun and as a reminder for students that sunscreens should be used year-round. This lesson addresses the National Science Education Standards.