Physical Changes
Physical Changes: Overview
This topic contains concepts like Changes around Us, Physical Changes, Physical Properties and Shape as a Physical Property.
Important Questions on Physical Changes
Which of the following are a type of physical change.
Which of the following is a physical change.
Is sugar dissolving in water a physical change or chemical change?
Changes in which only _____ properties of a substance change are called physical changes.
Which of the following is a physical change?
The expansion and contraction of metals observed after heating and cooling them is a
The common salt is obtained from sea water by the process of _____.
Which of the following examples indicate the reversible physical changes?
Which of the following situations are the examples of the physical change?
The tearing of a paper is a _____ change.
Which of the following characteristics define the physical changes in a matter?
Identify whether the activity given below shows physical (P) or chemical (C) change.
Identify whether the activity given below shows physical change or chemical change. Write P for physical change and C for chemical change.
State whether the following statements are true or false.
Cutting a log of wood into pieces is a chemical change.
Take a tumbler containing water. Place a blade horizontally. It floats. Place the same blade perpendicular to the surface of the water. See what happens.
List the objects with less and higher density.
|
Less Density |
Oil | |||||
|
High Density |
Water |
Prepare a list of activities done in your surrounding that involve physical change or chemical change. Write five examples of each (one is done for you).
| Physical change | Chemical change | |
| 1 | Repairing shoes | Burning fireworks |
| 2 | ||
| 3 | ||
| 4 | ||
| 5 |
Describe physical and chemical changes with two examples of each.
Change of water to ice is a chemical change.
The cooking of rice is a physical change.
