Changes Around Us
Science Solutions from Chapter -1 - Changes Around Us
The chapter discusses the changes around us. Some change can be reversed and some cannot be reversed. The different ways of bringing change are discussed here.
Practice Other Topics from Changes Around Us
This topic highlights the changes that took place in our surroundings. It highlights the chemical, physical, renewable and non-renewable changes. It also covers the concepts that are covered in this lesson.
The topic discusses the concept of slow and fast changes and reversible and irreversible changes. It also describes the desired and undesired, periodic and non-periodic, and physical and chemical changes with the aid of examples.
In this topic, we will learn about the concept of changes based on their speed of occurrence. It explains slow and fast changes with the help of examples. It also discusses the rusting of iron, the formation of day and night.
In this topic, we will understand the concept of changes based on their motion of occurrence. It explains the differences between the periodic and non-periodic changes with the help of examples. It explains the change of freezing of ice to water.
This topic briefly explains desirable and undesirable changes through some examples. It highlights the difference between desirable and undesirable changes. It also explains why most changes are irreversible.
In this topic, we will learn about few activities that can be reversed. These are called the reversible changes. It also discusses some irreversible changes with the help of activities.
This topic explains the difference between physical and chemical changes of a matter. Chemical characteristics of oil and water are described here. An example of burning is also illustrated to explain the concept.
This topic discusses different types of changes based on the phases. It sheds light on the endothermic and exothermic changes. It also explains some examples based on these changes.
