Understanding Flame and Convection Cycles

What causes the flame to always point upwards, even when the matchstick is tilted?

• The material of the wick

• The matchstick's angle

• The color of the flame

• The release of hot gases

Why does hot air rise above the flame?

• It cools down

• It becomes lighter

• It changes color

• It becomes denser

How can we visualize the movement of air around a flame?

• Measuring the flame's height

• Using smoke from incense sticks

• Observing the flame's color

• Using a thermometer

What happens to the air near the second chimney in the convection cycle example?

• It evaporates

• It sinks and moves towards the flame

• It becomes hotter and rises

• It remains stationary

What effect do convection cycles have on the shape of the flame?

• They make the flame circular

• They elongate the flame

• They change the flame's color

• They extinguish the flame