When you burn wood into ash or burn a marshmallow to become brown and crispy, it is impossible to undo. this change is known as what?
- Correct Answer: chemical change
- physical change
- carbon change
- compounding change
Explanation: Yummy! S’mores are on the way! Did you ever toast marshmallows over a campfire? The sweet treats singe on the outside and melt on the inside. Both the fire and the toasted marshmallows are evidence of chemical changes. In the process of burning, the wood changes to ashes and gases, and the outside of the marshmallow turns brown and crispy. Neither the wood nor the marshmallows can change back to their original form. That’s because burning is a chemical change and chemical changes are often impossible to undo. In this unit, you’ll learn about many types of chemical changes, including how they occur and why you can’t live without them.
More Random Questions
Ans: weight
Ans: Driving License
Ans: Repetitive nerve stimulation
Ans: nuclear fusion
Ans: analogous
Ans: venus
Ans: brain
Ans: Denmark
Ans: Arjuna Churna
Ans: enzymes
Ans: Neeraj Chopra and Ayushmann Khurrana
Ans: gas
Ans: Suryakumar Yadav
Ans: Delhi
Ans: volatile organic compounds
