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What are the different things that may change the way a puri puffs up when fried?
Many factors influence how a puri puffs: the thickness of the dough controls expansion; flour type affects elasticity; moisture helps steam build up; oil temperature affects how fast steam forms; and even how the dough is dropped into oil changes heat contact. These variables work together and alterRead more
Many factors influence how a puri puffs: the thickness of the dough controls expansion; flour type affects elasticity; moisture helps steam build up; oil temperature affects how fast steam forms; and even how the dough is dropped into oil changes heat contact. These variables work together and altering one can change the outcome. This variety makes puri puffing a great way to study real-life applications of heat, pressure and material properties in a fun, edible experiment.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 1 Exploring the Investigative World of Science Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessDo puris puff better when made fresh or from stored dough?
Fresh dough is more elastic and moist, which helps create steam quickly and allows expansion. Stored dough may lose moisture or become stiff, making it harder for steam to form and inflate the puri. Over time, gluten weakens and dough texture changes. Comparing both types shows how freshness affectsRead more
Fresh dough is more elastic and moist, which helps create steam quickly and allows expansion. Stored dough may lose moisture or become stiff, making it harder for steam to form and inflate the puri. Over time, gluten weakens and dough texture changes. Comparing both types shows how freshness affects structure, behavior and outcome. It’s a simple example of how time changes material properties, useful in food science and everyday observations.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 1 Exploring the Investigative World of Science Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessWhat happens if I prick a hole in the puri before frying?
When you prick a hole in the puri before frying, steam formed inside escapes through the hole. Without trapped steam, there’s no pressure to push the dough upward, so the puri stays flat. This demonstrates how internal pressure causes puffing and how even small changes in structure—like a hole—can aRead more
When you prick a hole in the puri before frying, steam formed inside escapes through the hole. Without trapped steam, there’s no pressure to push the dough upward, so the puri stays flat. This demonstrates how internal pressure causes puffing and how even small changes in structure—like a hole—can affect results. It’s a hands-on way to explore how pressure, heat and sealed surfaces interact in cooking and science.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 1 Exploring the Investigative World of Science Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessEvery living being-from tiniest insect to the largest whale, from blades of grasses to tall trees-depends on and responds to the air, water, sunlight and other organisms around them forming the ecosystems that support life on our planet. Explain.
Every living being is part of an ecosystem—a system where air, water, sunlight, plants and animals interact. Tiny insects pollinate flowers; trees provide oxygen and shelter; whales help ocean health. Organisms depend on one another for food, safety and survival. These balanced relationships keep EaRead more
Every living being is part of an ecosystem—a system where air, water, sunlight, plants and animals interact. Tiny insects pollinate flowers; trees provide oxygen and shelter; whales help ocean health. Organisms depend on one another for food, safety and survival. These balanced relationships keep Earth livable. Disturbing one part—like cutting forests or polluting water—affects the entire system. Understanding ecosystems teaches us how life is connected and why protecting the environment matters.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 1 Exploring the Investigative World of Science Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessWhat is the importance of asking How and Why questions in the study of science?
"How" and "Why" questions are essential in science because they transform ordinary observations into meaningful investigations. These questions lead to exploration, hypothesis formation, experimentation and discovery. Instead of memorizing facts, students learn to think critically and seek explanatiRead more
“How” and “Why” questions are essential in science because they transform ordinary observations into meaningful investigations. These questions lead to exploration, hypothesis formation, experimentation and discovery. Instead of memorizing facts, students learn to think critically and seek explanations. For example, asking “Why does a puri puff?” begins a scientific journey through heat, pressure and material properties. Such questions develop reasoning skills, curiosity and a deeper connection with the scientific world around us.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 1 Exploring the Investigative World of Science Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See less