• Many changes take place around us on their own.
• In the fields, the crops change from time to time.
• Sometimes, leaves fall from trees, change colour and dry out.
• The flowers bloom and then wither away.
• Our nails grow, our hair grows, we grow taller and our weight increases as we grow.
• Changes in weather, growth in living things, cooking of food, etc. are some of the common changes we see around us.
• With the passage of time, different forms of energy cause substances to undergo changes in their colour, state, taste, and arrangement.
• A change can be defined as an alteration in the physical and chemical properties of matter due to the effect of some kind of energy.
• Changes take place continuously.
• The transformation of one thing into another is called change.
• Every day we observe changes around us. For example the change of day and night, flowering of plants, ripening of fruits, rainfall etc.
• Change is the transition of any substance from one form to another.
Change in colour:
• Fruit is ripe or not by observing its colour.
• A raw mango is green in colour but changes to yellow on ripening.
Change in physical state:
• If a container filled with water is kept in freezer, there will be a change in its physical state. It fill freeze after sometime and will form ice.
Change in hardness:
• Batter of the cake is soft but it becomes hard when it is baked.
Change in size:
• Nails of our finger.
Change in shape:
• Bud opens out into a flower.
• The moon changes in its shape, it appear largest on a full moon day
Change in position:
• Hands of a clock change their position.