Figure out what is inside a box by listening to the noises it makes. Use as an analogy for how we learn about the sun's interior by listening to it.
Science content (2016 curriculum):
Physics: Light and Sound (1)
Earth/Space: Sun, Moon, Solar System, Universe (1, 4, 6)
Science topic (2005 curriculum connection):
Earth and Space Science: Stars and Planets (grade 3)