Oil Lamps

Motion and Time of Class 7

There is archaeological evidence of oil lamps about 4,000 BCE, and the Chinese were using oil for heating and lighting by 2,000 BC. Oil lamps are still important in religious practices. The shape of the lamp gradually evolved into the typical pottery style shown. It was possible to devise a way of measuring the level in the oil reservoir to measure the passing of time.

oil lamps

NCERT SOLUTION FOR CLASS-7 SCIENCE (Science for grade-7 NCERT solutions)

NCERT Solution for Class 7 Science Chapter 1 - Nutrition in Plants

NCERT Solution for Class 7 Science Chapter 2 - Nutrition in Animals

NCERT Solution for Class 7 Science Chapter 3 - Fibre to Fabric

NCERT Solution for Class 7 Science Chapter 4 - Heat

NCERT Solution for Class 7 Science Chapter 5 - Acids, Bases and Salts

NCERT Solution for Class 7 Science Chapter 6 - Physical and Chemical Changes

NCERT Solution for Class 7 Science Chapter 7 - Weather, Climate and Adaptations of Animals to Climate

NCERT Solution for Class 7 Science Chapter 8 - Winds, Storms and Cyclones

NCERT Solution for Class 7 Science Chapter 9 – Soil

NCERT Solution for Class 7 Science Chapter 10 - Respiration in Organisms

NCERT Solution for Class 7 Science Chapter 11 - Transportation in Animals and Plants

NCERT Solution for Class 7 Science Chapter 12 - Reproduction in Plants

NCERT Solution for Class 7 Science Chapter 13 - Motion and Time

NCERT Solution for Class 7 Science Chapter 14 - Electric Current and Its Effects

NCERT Solution for Class 7 Science Chapter 15 – Light

NCERT Solution for Class 7 Science Chapter 16 - Water: A Precious Resource

NCERT Solution for Class 7 Science Chapter 17 - Forests: Our Lifeline

NCERT Solution for Class 7 Science Chapter 18 - Wastewater Story

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