CBSE Class 7 Science The Ever-Evolving World of Science (Class 7 NCERT New) Quiz 1

1. Which skill in science involves using your senses and tools to notice details about phenomena?

A Observation of features and patterns B Classification into labeled groups C Measurement with standard units D Inference from background knowledge

2. Placing organisms into groups such as mammals, birds, and reptiles is an example of what scientific process?

A Hypothesis about weather B Measurement of mass only C Observation using field notes D Classification by shared traits

3. Recording the temperature of water in degrees Celsius best illustrates which practice?

A Observation without instruments B Classification by color groups C Measurement using standard units D Prediction from past events

4. Why does rain occur in Earth’s atmosphere? Choose the best explanation.

A Clouds push winds downward B Water vapor condenses into droplets C Air heats until droplets vanish D Lightning melts floating ice

5. Which tool is most suitable for measuring the volume of a liquid in a lab?

A Graduated cylinder with markings B Microscope with fine focus C Thermometer with Celsius scale D Triple-beam balance for mass

6. You sort rocks into igneous, sedimentary, and metamorphic based on formation. What is this called?

A Observation without grouping B Measurement of rock density C Classification by origin type D Prediction of future erosion

7. Which statement best connects observation and classification?

A Classification requires exact mass B Observation replaces all measurements C Classification follows careful observations D Observation depends on future tests

8. Which pair correctly matches tool and measurement?

A Balance and temperature B Graduated cylinder and length C Ruler and mass D Thermometer and temperature

9. Why might two students classify the same set of leaves differently at first?

A They measured volume only B They used different grouping rules C They had identical criteria sheets D They avoided observing features

10. Which statement about rainbows is most accurate?

A They form when white light scatters only B They form by light bending in raindrops C They form from red light combining D They form when clouds block sunlight