How does a simmering pot of spaghetti sauce illustrate convection currents? (1 point)
Warmer sauce at the bottom of the pot is less dense, so it rises, forcing cooler sauce down, where it is warmed
Warmer sauce at the top of the pot is denser, so it sinks to the bottom of the pot, where it is warmed even more.
• The pot is only simmering, so there are no convection currents.
• Warmer sauce at the bottom of the pot is denser, so it rises, forcing cooler sauce down, where it is warmed.
The correct answer is: Warmer sauce at the bottom of the pot is less dense, so it rises, forcing cooler sauce down, where it is warmed.
When a pot of spaghetti sauce is simmering, heat is being applied to the bottom of the pot, causing the sauce at the bottom to become warmer. As the sauce warms up, its density decreases, making it less dense than the cooler sauce above it. The less dense, warmer sauce then rises to the top of the pot, while the cooler, denser sauce sinks to the bottom. This movement of the sauce creates a convection current, with the warmer sauce continuously rising and the cooler sauce continuously sinking.