Prepare materials and tools: an opaque Beverage bottle, a piece of cardboard, a paper cup, a paper scroll, black marker, double-sided tape, and scissors.
1. Cut off the bottom of the bottle mouth.
2. Roll out the cardboard into a paper tube shape and glue it in place.
3. Connect the paper tube and the beverage bottle together.
5. Connect the paper cup and the beverage bottle together.
6. Paint paper cups, beverage bottles and paper tubes black.
7. Cut the paper axis into the shape in the picture and paint it black.
8. Place the completed astronomical telescope on the paper scroll.
