Find the change in Changes around Us – Class 7 Science Experiment
Chapter Name: Changes around Us
Activity Name: Find the change in Changes around Us
Activity Description:
In this activity, students are presented with a table containing different cases, and they are required to identify and record the changes observed for each case.
The changes can be related to the state, color, size, or shape of the substances. The students also need to identify the cases where new substances are formed.
Required Items:
- Table with different cases
Step by Step Procedure:
- Examine the table provided, which contains various cases.
- For each case, carefully observe the substances involved.
- Note down any changes noticed in the state, color, size, or shape of the substances.
- Identify the cases where entirely new substances are formed due to the changes.
Experiment Observations:
- The specific observations will depend on the cases mentioned in the table. For example: Case 1: Substance A (solid) – Heating – Substance A (liquid) Case 2: Substance B (blue) – Adding acid – Substance B (colorless) Case 3: Substance C (small) – Adding water – Substance C (swollen/enlarged)
Precautions:
- Handle any chemicals or substances with care, if applicable.
- Students should not taste or ingest any substances during the experiment.
- Follow the teacher’s instructions and guidelines for safe conduct.
Lesson Learnt from Experiment:
Through this activity, students learn that various changes can occur in substances around us. These changes can involve alterations in the state (solid, liquid, gas), color, size, or shape of substances. Additionally, they discover that some changes may lead to the formation of entirely new substances, indicating the occurrence of a chemical reaction.
