Sun catcher mobiles combine art, science, and seasonal light awareness in one beautiful project. When tissue paper pieces are sandwiched between sheets of clear contact paper and hung in a sunny window, light passes through the colored paper and casts colored patterns on walls and floors. Children discover that transparent and translucent materials interact with light differently from opaque ones — a concrete introduction to light science through stunning visual experience.

Making Sun Catchers

1. Cut a piece of clear contact paper into any shape (star, heart, circle) and peel the backing.
2. Tear or cut small pieces of tissue paper in multiple colors and arrange them on the sticky side.
3. Cover with a second piece of contact paper (sticky sides together), pressing out air bubbles.
4. Trim the edges to the final shape.
5. Punch a hole and hang with ribbon from a window frame or mobile rod.

Light Science to Explore

• Hold the sun catcher to the window: what colors appear on the wall opposite?
• Compare with an opaque piece of paper: does light pass through? (No.)
• Try different tissue paper colors: what happens when red and blue overlap?

Frequently Asked Questions

Why do sun catchers cast colored light?

Tissue paper is semi-transparent — it transmits some wavelengths of light and absorbs others. Red tissue paper absorbs most wavelengths but transmits red; blue tissue absorbs most but transmits blue. When overlapping colors transmit light together, the resulting color depends on which wavelengths pass through both layers — a phenomenon called light transmission rather than pigment mixing. Overlapping blue and yellow tissue paper makes green light (different from mixing blue and yellow paint, which also makes green but through subtractive pigment mixing).

Related activities:Rainbow Prism | Shadow Investigation | Leaf Crown Making