Share & grow the world's knowledge!
We want to connect the people who have knowledge to the people who need it, to bring together people with different perspectives so they can understand each other better, and to empower everyone to share their knowledge.
Write the Discovery of the first antibiotic, Penicillin.
In 1928, Alexander Fleming, a British scientist, discovered penicillin accidentally. He noticed that a mold growing on his petri dish killed the harmful bacteria around it. The mold was named Penicillium and its substance—penicillin—became the world’s first antibiotic. This discovery led to the deveRead more
In 1928, Alexander Fleming, a British scientist, discovered penicillin accidentally. He noticed that a mold growing on his petri dish killed the harmful bacteria around it. The mold was named Penicillium and its substance—penicillin—became the world’s first antibiotic. This discovery led to the development of many life-saving medicines. Penicillin helped treat bacterial infections effectively and marked the beginning of a new era in medical science.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessLet us find out how these communicable diseases spread and how we can prevent them. Explain.
Communicable diseases spread through infected air, dirty water, unclean food, insects or by touching infected people or things. We can prevent them by practicing good hygiene like washing hands often, using clean drinking water, eating safe food, keeping surroundings clean and getting vaccinated. UsRead more
Communicable diseases spread through infected air, dirty water, unclean food, insects or by touching infected people or things. We can prevent them by practicing good hygiene like washing hands often, using clean drinking water, eating safe food, keeping surroundings clean and getting vaccinated. Using masks, mosquito nets and avoiding contact with sick people also helps. These simple habits protect us and others from falling sick.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessAre diseases always caused by infections?
Diseases are not always caused by infections. Many illnesses are non-communicable and result from unhealthy habits, poor diet, lack of exercise, pollution or genetic factors. For example, diabetes, asthma, cancer and deficiency diseases like scurvy or goitre are not caused by germs but by lifestyleRead more
Diseases are not always caused by infections. Many illnesses are non-communicable and result from unhealthy habits, poor diet, lack of exercise, pollution or genetic factors. For example, diabetes, asthma, cancer and deficiency diseases like scurvy or goitre are not caused by germs but by lifestyle or nutritional issues. So, disease prevention includes not just avoiding infections but also living a healthy, balanced life.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessWhat are parasites?
Parasites are organisms that depend on another living being, called the host, for food and survival. They live either inside the body or on the surface. Parasites harm the host by stealing nutrients and sometimes causing serious diseases. Examples are tapeworms in the intestine, lice on the scalp anRead more
Parasites are organisms that depend on another living being, called the host, for food and survival. They live either inside the body or on the surface. Parasites harm the host by stealing nutrients and sometimes causing serious diseases. Examples are tapeworms in the intestine, lice on the scalp and protozoa causing malaria. Parasites spread through contaminated food, water or contact and can be prevented by maintaining hygiene and good sanitation.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessWhat will happen if I take excess amount of Iodine?
While iodine is important for proper thyroid function, taking too much can lead to health problems. It may cause hyperthyroidism (overactive thyroid), swelling in the neck, weight changes, irregular heartbeat and even headaches. Our body needs iodine in the right amount. Excess can disturb hormonalRead more
While iodine is important for proper thyroid function, taking too much can lead to health problems. It may cause hyperthyroidism (overactive thyroid), swelling in the neck, weight changes, irregular heartbeat and even headaches. Our body needs iodine in the right amount. Excess can disturb hormonal balance and damage health. It’s best to get iodine from a balanced diet and avoid taking supplements without a doctor’s advice.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 3 Health: The Ultimate Treasure Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See less