Unit Test (Solution): The Wonderful World of Science | Science for Class 6 PDF Download

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Attempt all questions. Time: 1 hour, M.M. 30

• Question numbers 1 to 7 carry 1 mark each.
• Question numbers  8 to 12 carry 2 marks each.
• Question numbers 13 to 15 carry 3 marks each.
• Question number 16 carries 4 marks each

Q1: What is the primary tool that science uses to explore and understand the world? (1 Mark)
(i) Experiments
(ii) Books
(iii) Memory
(iv) Guesswork

Ans: (i) Experiments

Experiments are a fundamental part of the scientific method, allowing scientists to test hypotheses and gather data to understand phenomena.

Q2: The most wonderful thing about science is that it is __________. (1 Mark)
​Ans: everywhere

Science is present in all aspects of life, from nature to technology, making it a universal field of study.

Q3: Which of the following is a key characteristic of a scientist? (1 Mark)

(i) Being afraid to ask questions
(ii) Avoiding experiments
(iii) Being curious and observant
(iv) Ignoring new ideas

Ans: Being curious and observant

A key characteristic of a scientist is curiosity, which drives them to ask questions and seek answers through observation.

Q4: How does science enhance our understanding of the natural world? (1 Marks)
​Ans: Science enhances our understanding of the natural world by encouraging curiosity and systematic inquiry. It allows us to observe phenomena, ask questions, formulate hypotheses, and conduct experiments to find answers. 

Q5: What is the first step in the scientific method? (1 Mark)
(i) Conducting experiments
(ii) Asking questions after observing something
(iii) Making a conclusion
(iv) Memorizing facts

Ans: Asking questions after observing something

The first step in the scientific method involves making observations and asking questions based on those observations.

Q6: Observing, questioning, and experimenting are steps of the __________ method. (1 Mark)
​Ans: scientific

The scientific method is a systematic approach used by scientists to explore observations and answer questions.

Q7: Why do scientists conduct experiments? (1 Mark)
(i) To test their guesses and gather evidence
(ii) To prove they are always right
(iii) To memorize facts
(iv) To avoid learning new things

Ans: To test their guesses and gather evidence

Scientists conduct experiments to validate their hypotheses and collect data that supports or refutes their ideas.

Q8: Discuss the significance of questioning and observation in the scientific method. (2 Marks)
Ans: Questioning and observation are crucial in the scientific method as they drive inquiry and exploration. They help scientists identify problems, formulate hypotheses, and gather data, leading to informed conclusions and advancements in knowledge.

Q9: Why is it essential to test ideas in scientific research? (2 Marks)
​Ans: Testing ideas is vital in scientific research because it validates hypotheses and theories. It ensures that findings are reliable and can be replicated, which is fundamental for building a robust body of scientific knowledge.

Q10: In what ways does science enhance our understanding of basic survival needs? (2 Marks)
​Ans: Science helps us understand basic survival needs by explaining the processes of nutrition, hydration, and shelter. It provides insights into how these elements are essential for health and well-being, guiding us in making informed choices.

Q11: Define science and explain its significance. (2 Marks)
​Ans: Science is the systematic study of the natural world through observation and experimentation. Its significance lies in its ability to enhance our understanding of phenomena, improve technology, and solve real-world problems.

Q12: Provide an example of how you have applied the scientific method daily. (2 Marks)
​Ans: One example is when I noticed my plant was wilting. I hypothesized it might need more water, tested this by watering it, and observed its recovery, demonstrating the scientific method in action.