effervescence

Everyday

1. The bubbles of gas that rise in a liquid, as in fizzy drinks or when a tablet dissolves. tree →
2. Lively, cheerful and excited behaviour. tree →

In the lessons

In science lessons on reactions, effervescence (fizzing) is a sign that a gas is being made, for example when vinegar meets bicarbonate of soda; in stories, a character's effervescence means bubbly energy; phrases: «effervescence shows a gas is made».

Examples

• We saw effervescence when the tablet dropped into the water. tree →
• Effervescence is a sign of a chemical reaction. tree →
• The lemonade lost its effervescence when left open. tree →
• Her effervescence made the party fun. tree →
• Vinegar and baking soda cause strong effervescence. tree →
• The effervescence was carbon dioxide gas escaping. tree →

Note

Uncountable. Pronounced eff-er-VESS-ence. Everyday word: fizz, fizzing. In chemistry: the bubbles in fizzy drinks are carbon dioxide.