PDF chapter test TRY NOW

Methodical recommendation:

Theory

Number Name Description
Number 1. Name Potable water Description In this theory, we will learn about characteristics of potable water.
Number 2. Name Water purification Description Purification of water involves few steps. Let us look at them in detail.
Number 3. Name Hardness of Water Description We are all familiar with water. But there are two types of water: hard and soft water. Let us check which of them is suitable for drinking and which is not.
Number 4. Name Removal of hardness of Water Description This part of the theoretical section shows how to remove hardness of water.
Number 5. Name Water pollution & Water resources in Tamil Nadu Description This part of the theoretical section explains water pollution and water sources in Tamil Nadu.
Number 6. Name Sources of water pollution-I Description Both natural and man-made sources pollute the water supply. Let's take a closer look at them.
Number 7. Name Sources of water pollution-II Description Both natural and man-made sources pollute the water supply. Let's take a closer look at them.
Number 8. Name Common pollutant Description We have looked into various pollutants, but what are the most common ones? Let's take a closer look.
Number 9. Name Controlling Water pollution Description Water pollution must be controlled, because all living organisms require it to survive. What is the best way to control? Let's take a closer look at them.

Practice Questions

Number Name Type Difficulty Marks Description
Number 1. Name Hardness of water: Match the following Type 1st type - receptive Difficulty easy Marks 3 m. Description Test your knowledge of the hardness of water by answering the given questions.
Number 2. Name Hardness of water: Choose the correct answer Type 1st type - receptive Difficulty easy Marks 2 m. Description Test your knowledge of the hardness of water by answering the given questions.
Number 3. Name Potable water: True or false Type 2nd type - interpretation Difficulty medium Marks 3 m. Description Test your knowledge of potable water by answering the given questions.
Number 4. Name Water purification & Hardness of water: True or false Type 2nd type - interpretation Difficulty medium Marks 3 m. Description Select the answer whether true or false to analyse your knowledge.
Number 5. Name Purification of water: Choose the correct answer Type 3rd type - analysis Difficulty medium Marks 3 m. Description Analyse your knowledge of purification of water by answering the given questions.
Number 6. Name Potable water: Fill in the blanks Type 3rd type - analysis Difficulty medium Marks 3 m. Description Analyse your knowledge by answering the given questions.
Number 7. Name Water purification and hardness of water: Think and answer Type 3rd type - analysis Difficulty medium Marks 2 m. Description Test your knowledge of purification and hardness of water by answering the given questions.
Number 8. Name Hardness of water: think and select the answer Type 3rd type - analysis Difficulty hard Marks 4 m. Description Analyse your knowledge of the hardness of water by answering the given questions.

Questions for Teacher Use

Number Name Type Difficulty Marks Description
Number 1. Name Hard and soft water: Drag and drop Type Other Difficulty easy Marks 2 m. Description Select the answer to analyse your knowledge of hard and soft water.
Number 2. Name Water pollutants: Drag and drop Type Other Difficulty medium Marks 2 m. Description Test your knowledge of water pollutants by answering the given questions.
Number 3. Name Water pollution: Write your answer Type Other Difficulty hard Marks 6 m. Description Write the answers to the given questions from water pollution to analyse your knowledge.
Number 4. Name Process of water purification: Arrange the stepts involved Type Other Difficulty hard Marks 6 m. Description Answer the question to practice the steps involved in the purification of water.
Number 5. Name Water pollutant Type Other Difficulty easy Marks 1 m. Description This exercise incorporates questions from textbook. Analyze your knowledge by answering these questions.
Number 6. Name Hardness of water Type Other Difficulty easy Marks 1 m. Description This exercise incorporates questions from textbook. Analyze your knowledge by answering these questions.
Number 7. Name Water borne disease Type Other Difficulty medium Marks 1 m. Description Analyse your knowledge of purification of water by answering the given questions.

Tests

Number Name Recomended time: Difficulty Marks Description
Number 1. Name Training Test Recomended time: 00:30:00 Difficulty medium Marks 10 m. Description

Periodic assessments

Number Name Recomended time: Difficulty Marks Description
Number 1. Name Homework Recomended time: 00:40:00 Difficulty medium Marks 8 m. Description
Number 2. Name Progress Test Recomended time: 00:40:00 Difficulty medium Marks 11 m. Description
Number 3. Name Progress Test-I Recomended time: 00:50:00 Difficulty hard Marks 10 m. Description
Number 4. Name Periodic Assessment Recomended time: 00:10:00 Difficulty medium Marks 6 m. Description PA 2