Class 8 Science – Chapter 1
99 Important MCQs
English + తెలుగు | Bilingual Questions with Answers
Asking “what happens if...?” → Designing an experiment → ______ → Improving understanding.
A coin placed in a glass of water appears raised due to which phenomenon?
A student notes that a puri made from stored dough puffs up differently than one made from fresh dough. This observation could lead to what new scientific step?
The chapter mentions that a kitchen can be a wonderful place for scientific observation. Which phenomenon is used as a primary example to illustrate this?
Which statement about the Grade 8 science journey is incorrect?
Which best explains why we use models in science?
Which natural object helps us measure time through its phases?
The root symbol is to ‘grounded observations’ as the kite symbol is to ________.
What scientific principle explains why a puri puffs up when fried?
A question is to a starting point as an observation is to ________.
What are ‘observable’ or ‘measurable’ aspects in an experiment?
At the heart of the problem and solution to climate change, the chapter identifies ________.
To do simple experiments, you don’t need a fancy ________, as even your ________ at home is a wonderful place to observe.
A scientist carefully observes, experiments thoughtfully, and explains clearly what they see. This three-part process is central to what?
Why do objects appear bent in water?
Match the experimental step with its example from the puri investigation.
Why do we classify materials in science?
What kind of organisms are studied when examining a single drop of water?
Which is an incorrect representation of the scientific process?
Which statement best describes the relationship between living organisms and their environment?
Which is not a correct step in scientific investigation?
The chapter starts with a single drop of water to uncover a hidden world of ________ and ends with what makes Earth ‘just right’ for ________.
What human invention was developed by observing the periodic cycles of the Moon’s phases?
Which statement about microbes is incorrect?
Based on the chapter, which statement about scientific investigation is incorrect?
Which is NOT mentioned as a Grade 8 investigation topic?
Which factor does not affect the refraction of light?
To test how dough thickness affects puri puffing, what condition is most important to maintain?
What protects Earth from the Sun’s harmful ultraviolet rays?
Which statement about particles in solids and gases is correct?
An element is to a pure substance as a ________ is to a combination that can be separated physically.
Students investigate why some puris are thinner on one side by sliding dough into oil at different angles. What have they identified?
What property of air allows it to exert pressure in different directions?
What kind of effect of electric current helps motors run and machines function?
What fundamental idea about scientific knowledge was emphasized in Grade 7?
How does the chapter classify materials like elements, compounds, and mixtures?
What helps scientists predict cyclones and severe storms?
A student notes that oil splattered and smoked at high temperature. What scientific practice is being followed?
Match the physical phenomena with their correct examples or explanations.
What is meant by ‘investigation’ in Grade 8 science?
What is the starting point of scientific investigation?
What is the relationship between force and pressure?
The beautiful phases of the Moon are a direct result of what?
Grade 6 science is to “wonder” as Grade 8 science is to ________.
Which force stops a moving object like a rolling ball?
All of the following are controllable when frying a puri EXCEPT:
Which pair correctly represents the chapter’s journey from very small to very large?
What is the first step in investigating the puffing of a puri like a scientist?
What is the correct sequence for scientific investigation in the puri example?
What is an ecosystem?
Match the concepts related to the nature of science.
What is the starting point for scientific exploration in Grade 6?
What two fundamental forces help explain the motion of objects?
If a student asks, “What happens if I prick a hole in the puri before frying?”, what stage is this?
Which statement accurately describes Earth’s position and its ability to support life?
Which part of a microscope helps magnify small particles or microorganisms?
In the puri experiment, ‘things that we can control’ are also called ________.
Adding salt to one dough batch but not another while keeping other conditions the same is called what?
Which condition would cause air pressure to decrease?
What is the main difference between a mixture and a compound?
In Grade 8, students move from learning new ________ to learning how to ________ new facts.
How does observing Moon phases help in timekeeping?
The magnetic effect helps ________ run, while the heating effect helps keep us ________.
Which is a controllable variable when testing different flour types on puri puffing?
What is the heating effect of electric current used for?
What is the primary goal for students in Grade 8 science?
Match the substances with their correct classification or description.
How does studying reflection from mirrors and bending through lenses help us?
Besides microbes, what is needed to fight infections and stay healthy?
What is the correct order of concepts from Grade 6 to Grade 8?
Which statement accurately reflects the book’s perspective on science?
A student observes a phulka swell on a flame and asks why it puffs like a balloon. What is this?
Why is it important to change only one thing at a time during an experiment?
Understanding forces and pressure helps explain why ________.
A student measures the time it takes for a puri to puff up. What kind of data is collected?
What force causes a ball thrown up to fall back down?
What example shows how pressure changes affect results?
What is the key to protecting the delicate balance on which life depends?
What is the collective term for observing, measuring, and experimenting?
What does pressure help to explain?
What object is mentioned as reflecting light apart from polished mirrors?
What would happen if there were no atmosphere around Earth?
Which statement about scientific understanding of puri swelling is correct?
What effect of Earth’s atmosphere on water makes our planet suitable for life?
What scientific tool helps us see tiny particles and microorganisms?
A ______ pressure difference can result in a gentle breeze, while a stronger difference can lead to ________.
What causes a gentle breeze or even a cyclone?
Match the astronomical and Earth science concepts with their descriptions.
What does “science is always evolving” imply?
Why is classifying materials in science important?
A student wonders whether a planet closer to the Sun but with a similar atmosphere could support life. What is this an example of?
Which best represents the journey of scientific inquiry?
What is the term for a pure substance formed when two or more elements are bonded together?
What visual metaphor represents the foundation of knowledge and connection to heritage?
What is the main message of the balance between the ‘root’ and ‘kite’ symbols?
When observing Moon phases, which position causes a new moon?
What role does science play in protecting Earth’s environment?
What is the direct cause of an image appearing in a shiny metal spoon?
Which scientific puzzle is NOT given as an example in the chapter?
Quiz Completed! / క్విజ్ పూర్తయింది!
Prepare effectively for Class 8 Science Chapter 1 with these carefully organized English + Telugu bilingual MCQ questions. The questions cover important concepts such as scientific investigation, observation, experiments, forces, pressure, light, microorganisms, materials, Moon phases, atmosphere, and Earth’s suitability for life.
These questions are useful for school exams, revision, NMMS, AP TET, DSC and other competitive examinations. Each question is provided in English and Telugu, along with multiple-choice options and the correct answer for quick self-assessment.
Practice these questions regularly and strengthen your Class 8 Science concepts!
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