Activity

## Explore which type of soda will cause the biggest explosion with Mentos with this hands-on science experiment for students who are blind or visually impaired.

This science project was done by Jose, who is a student at Texas School for the Blind and Visually Impaired (TSBVI).

### Question

Which soda will cause the biggest explosion when mentos is added?   I will test Diet Pepsi, Sam’s Choice, Pepsi, Sprite, and Coke.

### Hypothesis

My hypothesis is that the Diet Pepsi will explode the most.

### Materials

• Diet Pepsi
• Sam’s Choice Soda
• Coke
• Pepsi
• Sprite
• 10 mentos

### Procedure

1. Find a big lawn.
2. Unroll the package of Mentos.
3. Using the tool, place 2 Mentos into the tube of the tool.
4. Take the soda in your left hand with your right hand slowly twist the cap of the soda so that most of the gas will stay in the bottle.
5. Empty the Mentos into the Coke.
6. Repeat this procedure for each type of soda.
7. Measure how much soda remains in the bottle.
8. Analyze the data:  the more soda left in the bottle, the less the explosion.

### Data

Remaining liquid:

• Diet Pepsi:  1,000 mL
• Sam’s Choice:  1,305 mL
• Pepsi :  1,275 mL
• Sprite:  1,630 mL
• Coke:  1,130 mL

Liquid exploded:

• Diet Pepsi:  2,000 – 1,000 mL = 1,000 mL
• Sam’s Choice:  2,000-1,305 mL = 695 mL
• Pepsi:    2,000mL- 1,275 mL = 725 mL
• Sprite:  2,000 mL – 1,630 mL = 370 mL
• Coke:  2,000 mL – 1,130 mL = 870 mL

### Results

The Diet Pepsi exploded the most.

### Conclusion

My hypothesis was correct because the Diet Pepsi exploded the most.

### Variations

I considered comparing different types of candies instead of different types of sodas.

### NGSS Standards:

• Plan and conduct an investigation individually and collaboratively to produce data to serve as the basis for evidence, and in the design: decide on types, how much, and accuracy of data needed to produce reliable measurements and consider limitations on the precision of the data (e.g., number of trials, cost, risk, time), and refine the design accordingly. (HS-ESS2-5)

By Laura Hospitál