Name_________________________________________Class________Date______________
Chemistry Worksheet on Exothermic vs. Endothermic Changes
Write the letter “A” to classify the change as endothermic and write the letter “B” to classify
the change as exothermic.
1. _____a candle flame
2. _____evaporation of water
3. _____baking bread
4. _____burning magnesium metal
5. _____condensation of rain from water vapor
6. _____burning wood
7. _____ melting of ice
8. _____dissolving NH4Cl in water
9. _____making ice cubes from liquid water
10. _____mixing water with strong acids