Class 7 Science Notes help the students to understand their basic concepts of physics, chemistry, and biology. Punjab textbook is the best option to clear students’ concepts. However, due to the vast science syllabus, it is necessary to make easy guides for students. So for grade 7, Dr Irshad and Mr Imran Nazeer prepared these notes with complete exercise solutions in a concise format.
Parho.pk Science notes will help students understand every concept covered in their syllabus and help them study smartly so that they can do well in school. These notes include neatly illustrated examples, which make it easy to review important topics quickly, so students can get a complete understanding of all the chapters quickly. As a result, these carefully crafted Science notes will boost students’ exam preparation, allowing them to score higher grades.
Here are some links that students can use to learn about different topics.
| Chapter 1 – Plant Systems |
| Chapter 2 – Human Respiratory and Circulatory System |
| Chapter 3 – Immunity and Diseases |
| Chapter 4 – Structure of an Atom |
| Chapter 5 – Physical and Chemical Changes |
| Chapter 6 – Chemical Bonds |
| Chapter 7 – Solutions |
| Chapter 8 – Force and Motion |
| Chapter 9 – Waves and Energy |
| Chapter 10 – Heat and Temperature |
| Chapter 11 – Technology in Everyday Life |
| Chapter 12 – Earth and Space |
Class 7 Science Chapter Wise Solutions
Class 7 Science Chapter 1 (Plant Systems)
This chapter covers the root and shoot system, Xylem and Phloem, photosynthesis and respiration, organ and organ system in plants, chloroplast, minerals, and respiration.
Chapter 1 has approximately 30 Short Questions, 50 MCQs, and 5 important long questions. Some important key points are also included in this chapter.
Class 7 Science Chapter 2 (Human Respiratory and Circulatory Systems)
Some topics Process of Respiration and Breathing, Aerobic and Anaerobic Respiration, the Pathway of Air in humans, the Human Circulatory System, the Respiratory System, Transport system, the Human Heart, Blood and Blood cells, Blood Vessels (arteries, veins, Capillaries) are covered in chapter 2.
Class 7 Science Chapter 3 (Immunity and Diseases)
A few topics like the immunity system of humans, Pathogens that cause disease, Bacteria, Viruses, Fungi, Parasites, and Avoiding infections are covered in chapter 3 of the 7th class.
Class 7 Science Chapter 4 (Structure of Atom)
Atom, Shell or Orbit, Atomic Structure, and Periodic Table are covered in Chapter 4. The chapter is a short chapter that has a few questions. The pdf of chapter 4 is given below.
Class 7 Science Chapter 5 (Physical and Chemical Changes)
Chapter 5 has only two main topics which are physical and chemical changes. In these topics, the physical and chemical characteristics of different matters are included.
Physical changes don’t make new substances. When sugar is dissolved in water, a sweet solution formed is different from pure water. Is this a physical change?
Class 7 Science Chapter 6 (Chemical Bonds)
In Chapter 6, We have to learn about Atoms, molecules, and electronic configuration, Electrons around the nucleus of an atom are arranged in different shells (K, L, M, and N), Maximum number of electrons each of the first (K), second (L), third (M) and fourth (N) shell can accommodate.
You can also learn Velocity and its chemical formulas such as H2O, NaCl, NH3, CO2, CO, etc. After reading our solutions, you would also be able to Recognize that a chemical bond results from the attraction between atoms in a compound and that the atoms’ electrons are involved in this bonding.
Class 7 Science Chapter 7 (Solutions)
In this chapter, we will learn about solutions their types, and states of solutions. Also, learn about dilute and concentrated solutions. Saturated and Unsaturated solutions are also discussed in this chapter.
In the second portion of chapter 7, you can learn about solubility and the factors that affect it (nature of solute and solvent, temperature, and pressure). Solubility also affects our daily lives discussed in solubility topic.
Class 7 Science Chapter 8 (Force and Motion)
After studying this chapter, students will be able to:
- Describe the effect of force on changing the speed and direction of motion with time.
- Define and state the SI unit of force.
- Formulate the relationship between speed, distance, and time.
- State SI (System International) unit of speed.
- Calculate average speed.
- Interpret a distance-time graph.
- Give examples of contact forces and noncontact forces.
- Demonstrate that forces always work in action and reaction pairs (equal in magnitude, opposite in direction).
Class 7 Science Chapter 9 (Waves and Energy)
In Chapter 9, we have completely discussed waves and energy.
Topics Covered: Waves (Transverse and Longitudinal Waves), Sound as comprehensive waves, amplitude, wavelength, frequency, Frequency and Time Period, Pitch, and Sound and Echo are covered.
Class 7 Science Chapter 10 (Heat and Temperature)
In this chapter, we will learn about Heat and temperature, Thermal expansion and contraction, Modes of heat transfer, and Thermal insulation in buildings. The complete topics are provided in our notes with exercise solutions. So check first then download.
Class 7 Science Chapter 11 (Technology in Everyday Life)
In this chapter we will learn about:
- Drip and sprinkler irrigation system
- Techniques of preserving foods
- Making a simple stethoscope
- Making a sanitizer
Class 7 Science Chapter 12 (Earth and Space)
We have learned about the solar system (The Sun and Planets) and that the Earth being part of the solar system is the third planet from the Sun. The surface of the Earth is made of water, air, and solid ground. Its atmosphere consists of nitrogen, oxygen, carbon dioxide and other gases. The mass of the Earth is about 6 x 1024kg. The Earth is the only planet where life exists.
In this chapter we will learn:
- Gravitational force
- Mass and weight
- Weightlessness
- Tides
- Annual rotation of the Earth around the Sun