កំណែថ្នាក់ទី៨វិទ្យាសាស្រ្តពិត

8th grade textbook for true science as a study aid for 8th grade students who have compiled textbooks for mathematics, physics, chemistry and biology.

There are solutions to each lesson:

1. Mathematics

Lesson 1: Number of Reasons

Lesson 2 Power

Lesson 3 Size, Proportion and Percentage

Lesson 4 Measurement

Lesson 5 Algebraic expressions

Lesson 6 Rational expressions

Lesson 7 The first degree equation has one variable

Lesson 8: The first degree equation has one variable

Lesson 9 Layout, coordinates and graph

Lesson 10 Statistics

Lesson 11 Probability

Lesson 12 Comparing Triangles

Lesson 13 Rectangle

Lesson 14 Polygon Area

Lesson 15 Circles

Lesson 16 Special lines and chords meet in a triangle

Lesson 17 Three-dimensional geometry

Lesson 18 Scale

2. Physics

Chapter 1 Straight Movement Lesson 1 Speed ​​and Speed ​​Vector

Lesson 2: Momentum and Acceleration

Lesson 3 Service River

Question at the end of Chapter 1

Chapter 2 Strength and Movement Lesson 1 Strength

Lesson 2 Friction force

Lesson 3 Newton's Law

Question at the end of Chapter 2

Chapter 3 Energy Production and Power Lesson 1 Energy Production

Lesson 2 Power

Question at the end of Chapter 3

Chapter 4 Power and Power Electricity Lesson 1 Power and Power

Lesson 2 Home Electrical Network

Question at the end of Chapter 4

Chapter 5 Magnet Lesson 1 Magnet

Lesson 2 Magnetic field

Concluding Question Chapter 5

Chapter 6 Sounds Lesson 1 Making Sounds

Lesson 2 Tumnoul So

Lesson 3: Reflection of sound and sound

Concluding Question Chapter 6

8th grade textbook for real science as an aid for students looking for sample exercises and additional problem-solving methods.

In order for the study to be successful, it is necessary to read more, practice the exercises twice a day and listen to the teachers while studying in the classroom, especially to be good children, good students and good young men and women to be the successors. The country's bamboo to develop more and more in the Internet age.

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