- Cape student sues, accuses school officials of slamming her to ground multiple times (04/28/16)47
- Neelys Landing man shot, killed by highway patrol trooper after traffic stop (05/01/16)42
- Bob Evans restaurant in Cape Girardeau among chain's 21 closings (04/26/16)9
- Missouri House votes to allow concealed weapons without permits (04/28/16)8
- Police report filed, but no charges in incident at Cape Central (04/29/16)40
- Two hurt in motorcycle wreck on Interstate 55 (04/25/16)1
- 2016 All-Missourian Boys Basketball (04/29/16)
- Senator introduces bill for I-57 that would connect Sikeston with Little Rock (04/28/16)4
- Law firm requests information about Cape's traffic cameras (04/25/16)3
- Local lawmakers split over failed medical marijuana bill; voters may have a say (04/26/16)19
Hooked on Science: Soda geyser
Create a soda geyser with five simple materials.
* Sheet of paper
* Index card
* 2-liter bottle of soda
STEP 1: Create a launcher tube by rolling the sheet of paper into a tube. Make sure the tube is a little bigger than the diameter of the Mentos. Use the tape to hold the paper in place.
STEP 2: Open the 2-liter bottle of soda, place the soda on the ground and put the index card over the opening.
STEP 3: Load the candy into the launcher tube.
STEP 4: Place the launcher tube directly above the opening of the 2-liter. Keep the index card between the bottle and the launcher tube.
STEP 5: Quickly remove the index card, allowing the Mentos to fall into the bottle of soda. Stand back and watch the soda geyser.
The tiny dents on the surface of the Mentos are perfect nucleation points. When the Mentos are dropped into the soda the carbon dioxide gas bubbles in the soda attract to these tiny dents. When this happens there is a rapid release of carbon dioxide gas creating a soda geyser.
Jason Lindsey is a science outreach educator with Hooked on Science. Check out his website www.hookedonscience.org for webcasts and experiments.