Podcast
Questions and Answers
What is a physical change?
What is a physical change?
- Evaporation of liquids (correct)
- Turning of milk into curd
- Formation of a new substance with a new chemical composition
- Photosynthesis by green plants
Which of the following is an example of a chemical change?
Which of the following is an example of a chemical change?
- Turning of milk into curd (correct)
- The growth of a seed into a plant
- Burning of wood in a fireplace
- Evaporation of liquids
What causes chemical changes?
What causes chemical changes?
- Photosynthesis by green plants
- Physical reactions between substances
- Evaporation of liquids
- Chemical reactions between substances (correct)
What distinguishes a chemical change from a physical change?
What distinguishes a chemical change from a physical change?
Which of the following is a physical change?
Which of the following is a physical change?