WASHOUGAL – Fourth-graders in Khrista McBride’s and Samantha Howard’s classes at Columbia River Gorge Elementary school applied science and engineering concepts as they built, tested and raced balloon ...

Ingredients Pencil Instructions STEP 1: Using a pencil, punch a hole in the middle of your cardboard disk. STEP 2: Line up the hole in the middle of your cardboard disk with the hole in your spool.