Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 13: Earth and Climate Change - Question 10

In this activity, wear safety goggles and gloves. Attach a wire holder to a candle and put it in a jar. Light the candle, cover the jar with its lid and observe until the flame goes out. Measure 10 ml of limewater. Remove the lid and candle, quickly add the limewater, replace the lid, and shake for a few minutes. Avoid burns and contact with limewater; hold the jar and lid firmly.



Tick (✓) the statement(s) that correctly describe(s) what happened during the activity.

- The candle burnt brightly in the first minute.
- The candle continued to burn brightly after the lid was closed.
- The candle was extinguished shortly after the lid was closed.