CBSE Revision Notes

Nutrition in Plants Class 7 Science Notes – Chapter 1

Nutrients such as carbohydrates, minerals, proteins, vitamins, and fats are essential components of food and are necessary for the body. Living organisms require food and use the same to grow and maintain their body. Plants which synthesize their own food with the photosynthesis process are called autotrophs. When animals or any other organism consume food prepared by plants, are called heterotrophs. Plants synthesize their food with chemical substances such as minerals, carbon dioxide, and water. Please refer Nutrition in Plants Class 7 Notes for more revision notes.

Class 7 Science Revision Notes

Science is one of the most important subjects for students who wish to pursue a career in the engineering field, medical field and technology-related fields. The basic concepts of science are generally introduced in CBSE Class 7 Science Notes where students need to get a good grasp on the concepts. It forms a strong knowledge-base for advanced concepts that will be introduced later in higher classes. Having a good understanding of all the concepts is not only required to excel in the exams but also to develop a holistic knowledge about the subject.

• Nutrition in Plants Class 7 Notes
• Nutrition in Animals Class 7 Notes
• Fibre to Fabric Class 7 Notes
• Heat Class 7 Notes
• Acids, Bases and Salts Class 7 Notes
• Physical and Chemical Changes Class 7 Notes
• Weather, Climate and Adaptations of Animals to Climate Class 7 Notes
• Winds, Storms and Cyclones Class 7 Notes
• Soil Class 7 Notes
• Respiration in Organisms Class 7 Notes
• Transportation in Animals and Plants Class 7 Notes
• Reproduction in Plants Class 7 Notes
• Motion and Time Class 7 Notes
• Electric Current and Its Effects Class 7 Notes
• Light Class 7 Notes
• Water: A Precious Resource Class 7 Notes
• Forests: Our Lifeline Class 7 Notes
• Waste Water Story Class 7 Notes

Visualising Solid Shapes Class 7 Notes: Chapter 15

Visualising Solid Shapes Class 7 Notes provided here are one of the most important resources for the students of class 7. These CBSE class 7 notes for chapter 15 will not only help the students to learn the concepts easily but will also help them to revise this topic in a more efficient way. 

Symmetry Class 7 Notes: Chapter 14

Symmetry is when two or more parts remain identical after a turn, slide, or flip. Examples of symmetry includes mirror reflections, folding a rectangular paper exactly from the middle, etc. Please refer Symmetry Class 7 Notes for more revision notes.

Exponents and Powers Class 7 Notes: Chapter 13

Exponents can be defined as a quantity which describes the power to which a particular base number is raised to. On the other hand, power simply implies the number of time the same base number has to be multiplied. Learn more about Exponents and Powers Class 7 Notes  from this article along with examples.

Algebraic Expressions Class 7 Notes: Chapter 12

Algebraic expression is a kind of expression which is formed by the combination of variables and constants. For example, 3x+ 2y is an algebraic expression and in this expression, “x” and “y” are variables while 3, and 2 are constants. Check out Algebraic Expressions Class 7 Notes to learn more details about this topic.

Perimeter and Area Class 7 Notes: Chapter 11

The definition of area and perimeter of closed figures is explained below. Also, the area and perimeter formula of some of the common figures are given below.

• Perimeter of a closed figure: Perimeter can be defined as the length of the boundary of a a figure i.e. the total distance around the figure.
• Area of a closed figure: Area of any closed figure is defined as the space enclosed within it. In simple words, area is the part of plane that a closed figure occupies. Please refer Perimeter and Area Class 7 Notes for more revision notes.

Practical Geometry Class 7 Notes: Chapter 10

Practical Geometry Class 7 Notes are provided here which can help the class 7 students to learn this chapter in a better and more effective way. These CBSE maths chapter 10 notes are concise and students can not only learn the topics but can also revise the concepts easily.

Rational Numbers Class 7 Notes: Chapter 9

Rational numbers are of two types: positive and negative rational numbers. When both the numerator and denominator is a positive integer, then it is said to be a positive rational number. When either the numerator or the denominator is a negative integer, then it is said to be a negative rational number.

The number 0 is neither a negative nor a positive rational number. If the numerator and denominator of a rational number are divided or multiplied by a non-zero integer, we get a rational number that is equivalent to the given rational number. Please refer Rational Numbers Class 7 Notes for more revision notes.

Comparing Quantities Class 7 Notes: Chapter 8

Quite often, in our daily life, we are required to compare two quantities. Let us look at a few points on how a comparison between two or more objects can be done.

• It is to be noted that the comparison between any two quantities can be written as a ratio.
• To compare two quantities, their units must be the same.
• Different ratios can also be compared with each other to know if they are equivalent or not.
• Two ratios can be compared by converting them to like fractions. If the two fractions are equal, we say the two given ratios are equivalent. If two ratios are equivalent, then the four quantities are said to be in proportion. For example, 4:16 and 8:32 are equivalent, therefore, the numbers 4,16,8 and 32 are said to be in proportion.
• Another way of comparing quantities is by percentage. Percentages have numerators of fractions with a denominator of 100. Please refer Comparing Quantities Class 7 Notes for more revision notes.