CBSE Class 6 Science The Wonderful World of Science (Class 6 NCERT New) Quiz 9

1. The role of food in growth is that it:

A provides nutrients necessary for growth and development. B removes waste from the body. C controls body temperature directly. D prevents all diseases.

2. The importance of water is that it is essential for life, growth, and various biological processes.

A It is essential for life, growth, and various biological processes. B It is only used for cleaning purposes. C It is not required by living organisms. D It is important only for industrial use.

3. The scientific method is:

A a systematic process used to investigate phenomena, acquire new knowledge, or correct and integrate previous knowledge. B a random approach to guessing answers without evidence. C a method for memorizing facts without understanding. D a process of forming opinions based on personal beliefs only.

4. How would you feel if you had skipped breakfast?

A We will feel tired because our body did not get the energy it needed to start the day. Food is essential for providing energy and nutrients to our body. B We will feel energetic because skipping breakfast gives us more energy. C We will not feel any difference as breakfast is not important. D We will feel very happy because our body does not need food in the morning.

5. Why does a seed need soil, water and sunlight to grow into a plant?

A A seed needs soil, water, and sunlight to grow because each one helps it in a special way: - Soil is like a home for the seed. It holds the seed and gives it nutrients (like food) to help it grow. - Water helps the seed wake up and start growing. It also helps carry the nutrients from the soil to the plant. - Sunlight gives the plant energy through a process called photosynthesis. This is how the plant makes its own food. B A seed needs soil, water, and sunlight to grow because they keep the seed warm and dry all the time. C A seed needs soil, water, and sunlight to grow because they help the seed stay underground forever. D A seed needs soil, water, and sunlight to grow because they make the seed float in the air.

6. Water is important in our daily lives and the environment because it helps us utilise food for energy, supports survival, plays a major role in the water cycle, and can change forms.

A It helps us utilise food for energy, supports survival, plays a major role in the water cycle, and can change forms. B It is only used for cleaning and washing. C It is not involved in any environmental processes. D It is important only for plants and not for humans.