Science Quick Revision Notes For Classes 7 - 12
Science Quick Revision Notes For Classes 7 – 12:
With the right notes, preparation is made much easier because a quick revision is possible. The textbook’s concepts may not all be covered in one sitting. You can easily earn high grades by competing against candidates who have useful study aids, such as science revision notes for their science study. It goes without saying that a student who has the proper notes can excel on tests and stand out from the competition.
The best quick revision notes have been produced here by Web Tutors Point, are easily access able, and developed with the needs of all such students in mind. For your preparation, you can access Science Quick Revision Notes for Classes 7 – 12 here.
Quick Review Notes for Science Highlights
- Notes provided here have been written using the most recent CBSE syllabus.
- In a little period of time, you can quickly get a quick summary of the key chapter topics.
- In order to feel secure and stress-free before the exam, students can quickly and effectively review.
Here are some general science topics typically covered in a Class 7 curriculum, along with brief notes on each topic:
1. Nutrition in Plants And Animals:
- Photosynthesis in plants
- Digestive system in animals
Nutrition in Plants:
- Plants make their own food through photosynthesis.
- The process involves the absorption of carbon dioxide, water, and sunlight to produce glucose and oxygen.
Nutrition in Animals:
- Animals are classified into herbivores, carnivores, and omnivores based on their diet.
- The digestive system includes organs like the mouth, esophagus, stomach, and intestines.
2. Respiration in Organisms:
- Respiration is the process of obtaining energy from food.
- It involves the exchange of gases like oxygen and carbon dioxide.
3. Transportation in Plants and Animals:
- Plants transport water and nutrients through xylem and phloem.
- In animals, blood serves as the transportation medium.
4. Reproduction in Plants And Animals:
- Plant reproduction (sexual and asexual)
- Human reproductive system and puberty
Reproduction in Plants:
- Plants can reproduce through sexual and asexual methods.
- Sexual reproduction involves the formation of seeds.
Reproduction in Animals:
- Animals also reproduce sexually, and some can reproduce asexually.
- Fertilization is the union of male and female gametes.
5. Weather, Climate, and Adaptations of Animals to Climate:
- Weather refers to the day-to-day conditions, while climate is the average weather over a long period.
- Animals adapt to their environment to survive.
6. Respiration in Organisms and Transportation in Plants and Animals:
- Oxygen is essential for respiration in both plants and animals.
- Transportation systems help distribute oxygen and nutrients.
7. Soil:
- Soil is a mixture of minerals, organic matter, and microorganisms.
- It is essential for plant growth and supports various ecosystems.
8. Acids, Bases, And Salts
- Properties and uses of acids, bases, and salts
- pH scale
9. Motion and Time: – Motion involves a change in position of an object. – Time is measured using various instruments like clocks and watches.
10. Electric Current and its Effects: – Electric current is the flow of electric charge. – It has various effects, including the generation of heat and magnetism.
11. Light: – Light is a form of energy that allows us to see objects. – It travels in straight lines and can be reflected and refracted.
- Reflection, refraction, and dispersion of light
- Lenses and their applications
12. Water: A Precious Resource: – Water is essential for all living organisms. – It is a limited resource, so its conservation is crucial.
13. Forests: Our Lifeline: – Forests play a vital role in maintaining the ecological balance. – They provide habitat, oxygen, and various resources.
14. Waste Water Story: – Wastewater treatment is essential to make water safe for reuse or discharge. – It involves physical, chemical, and biological processes.
15. Heat: – Read More
16. Fibre To Fabric: – Read More
These are some of the key topics typically covered in Class 7 science. Each topic can be explored in more detail through the link given there to gain a comprehensive understanding.