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The movements of the Sun and Moon that are linked. Explain.
The Sun and Moon move in predictable patterns. The Sun appears to move across the sky, giving us day and night. The Moon orbits Earth and reflects sunlight, changing its visible shape—called phases. Together, their alignment causes events like solar and lunar eclipses and affects ocean tides. TheseRead more
The Sun and Moon move in predictable patterns. The Sun appears to move across the sky, giving us day and night. The Moon orbits Earth and reflects sunlight, changing its visible shape—called phases. Together, their alignment causes events like solar and lunar eclipses and affects ocean tides. These movements also help create calendars and time systems. This shows how Earth’s routine is influenced by celestial bodies and their movements, connecting astronomy to daily life.
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 lessHave you noticed how a puri or a batura puffs up when placed in hot oil?
When a puri or batura is placed in hot oil, the heat causes moisture in the dough to turn into steam. This steam gets trapped inside, creating pressure that inflates the dough, forming a puff. The outer layer cooks quickly, holding the shape. This process shows how heat, moisture and material structRead more
When a puri or batura is placed in hot oil, the heat causes moisture in the dough to turn into steam. This steam gets trapped inside, creating pressure that inflates the dough, forming a puff. The outer layer cooks quickly, holding the shape. This process shows how heat, moisture and material structure interact. It’s a perfect everyday example of scientific principles like pressure, heat transfer and changes in states of matter.
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 lessHow a phulka swells when put directly on the flame. Why does it puff up like a balloon?
When a phulka is placed on direct flame, the heat rapidly turns water in the dough into steam. Since the outer layers are partly cooked, the steam gets trapped inside, pushing the layers apart and making the phulka puff like a balloon. This shows how heat transforms water into gas, creating internalRead more
When a phulka is placed on direct flame, the heat rapidly turns water in the dough into steam. Since the outer layers are partly cooked, the steam gets trapped inside, pushing the layers apart and making the phulka puff like a balloon. This shows how heat transforms water into gas, creating internal pressure that changes the roti’s shape. It’s a simple kitchen process with deep science behind it involving states of matter and pressure.
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 lessAnd why is one side thinner than the other?
As the puri puffs, steam pushes the dough outward. If the dough is rolled unevenly or one side heats faster, that part expands more and stretches thinner. The top layer often lifts higher, receiving more pressure and expanding more. Differences in dough texture, rolling or oil contact also contributRead more
As the puri puffs, steam pushes the dough outward. If the dough is rolled unevenly or one side heats faster, that part expands more and stretches thinner. The top layer often lifts higher, receiving more pressure and expanding more. Differences in dough texture, rolling or oil contact also contribute. This makes one side noticeably thinner. Such small variations lead to clear results and help explain how physical factors affect shape and texture.
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 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 less