Dancing Raisins

The video tutorial demonstrates two methods to create 'dancing raisins' using carbonated beverages and a vinegar-baking soda reaction. It explains the role of carbon dioxide in creating fizz and how bubbles attach to raisins, causing them to rise and fall. Safety precautions are discussed, and step-by-step instructions are provided for both methods.

What is the primary gas responsible for the fizz in carbonated beverages?

• Hydrogen

• Carbon Dioxide

• Nitrogen

• Oxygen

In the first method, what causes the raisins to rise to the surface of the carbonated beverage?

• The color of the raisins

• The temperature of the beverage

• The weight of the raisins

• The attachment of carbon dioxide bubbles

What is the visual effect called when raisins repeatedly rise and fall in the liquid?

• Bouncing raisins

• Floating raisins

• Dancing raisins

• Spinning raisins

What safety precaution is suggested for the second method involving vinegar and baking soda?

• Wearing splash goggles

• Using a mask

• Using a fire extinguisher

• Wearing gloves

What is the main reason for adding vinegar slowly in the second method?

• To prevent the reaction from being too slow

• To avoid overflow of the container

• To make the raisins dance faster

• To change the color of the solution