Science Ace (Dancing Raisins)

Hi everyone! Today, I will be sharing about my Science ace - "Dancing Raisins"




Materials needed

Raisins
Clear, colorless carbonated drink

Method

1)Pour the clear carbonated drink (sprite, h-two-o etc.) into a tall glass/ or just use the bottle itself

2)Put the raisins into the glass and see what happens

Observation

Raisins “dance” up and down the glass

Explanation

The raisins dance up and down due to density
Density is defined as its mass per unit volume.

When you put the raisins into the glass, you would see them sinking to the bottom of the glass.

As the carbonated drink releases carbon dioxide, the carbon dioxide stick to the rough surface of a raisin.

Raisin is lifted because of the increase in buoyancy.

When the raisin reaches the surface, the bubbles pop, and the carbon dioxide gas escapes into the air.

Raisin loses buoyancy and sink.

This rising and sinking of the raisins continues until most of the carbon dioxide has escaped, and the carbonated drink becomes un-carbonated.

Also, as the experiment goes on, the raisin gets soggy and becomes too heavy to rise to the surface.

Conclusion

Really fun, yet simple experiment that everyone can do :D
Tips
Try not to shake the bottle/can of carbonated drink too much, or it would lose its gas, and it would get really messy when you open it.

When I first tried the experiment, I put in a raisin that was too big and it would not “dance”. I tried another raisin and saw it dance a little, but it stopped after a while. In the end, I used a small raisin and it danced perfectly. The video footage is not very clear, but it could still be seen :D