Table of Contents

  1. 01
    • How to Use the Online Platform

    • General science Grade 8 Subject Introduction

  2. 02
    • Introduction

    • Indigenous Measurements of Length and Mass

    • Indigenous Measurement Methods(Continued)

    • Activities

    • Quiz 1

    • Explanation on Quiz-1

    • Worked Examples on Indigenous Measurements

    • Fundamental and Derived Physical Quantities

    • Quiz 2

  3. 03
    • Physical Quantities and Scientific Measurement

    • The Four Derived Physical Quantities

    • Physical Quantities

    • Quiz 1

    • How to determine the the Units of Derived Physical Quantities

    • What is Prefix?

    • How to Convert Units of Measurements

    • Quiz 2

    • Summary

  4. 04
    • Measuring Physical Quantities

    • Measuring Mass

    • Measuring Length

    • Measuring time

    • Measuring Temperature

    • Tools and Units To Measure Physical Quantities

  5. 05
    • Accuracy and Precision in Scientific Measurement

    • How to determine Accuracy and Precision of Measurement

    • Easiest ways to determine Accurate and Precise Measurements

    • Exercise 1.10- Solved

  6. 06
    • The Scientific Method

    • Unit Summary

    • Review Questions on Unit 1

  7. 07
    • GS G8 S6 L1(Democritus's & Arisotle's View of Matter

    • GS G8 S6 L2(The Inside of an Atom

    • Inside The Atom

    • GS G8 S6 L3(Atomic Number and Mass Number

    • GS G8 S6 L4(How to Determine Number of Protons, Neutrons and Electrons

    • GS G8 S6 L5(Molecules

    • The World of Molecules

    • GS G8 S6 L6(How to Identify Molecule of Elements and Compounds

  8. 08
    • Gs G8 S7 L1(Summary of Unit 2

    • Gs G8 S7 L2(Review Questions on Unit 2 Part 1

    • Gs G8 S7 L2(Review Questions on Unit 2 Part 1

    • Gs G8 S7 L3(Review Questions on Unit 2-Part 2.27316.15244

    • Gs G8 S7 L3(Review Questions on Unit 2-Part 2

    • GS G8 S7 L4(Review Questions on Unit 1 Part 3

  9. 09
    • GS Gr8 S8 L1(2015)

    • Classification of Compounds

    • GS Gr8 S8 L2 (2015)

    • GS Gr8 S8 L3 (2015)

    • Hydrocarbons

    • GS Gr8 S8 L4 (2015)

    • GS Gr8 S8 L5 (2015)

    • Alkenes

    • GS Gr8 S8 L6 (2015)

    • Alkynes

  10. 10
    • GS Gr8 S9 L1 (2015)

    • GS Gr8 S9 L2(2015)

    • GS Gr8 S9 L3 (2015)

    • GS Gr8 S9 L4 (2015)

    • Recap on Nomenclature of Hydrocarbons

    • Vinegar

    • GS Gr8 S9 L5 (2015)

  11. 11
    • GS Gr8 S10 L1 (2015)

    • GS Gr8 S10 L2 (2015)

    • GS Gr8 S10 L3 (2015)

    • Properties of Metallic and Non-metallic Oxides

    • GS Gr8 S10 L4 (2015)

    • 10 Fun Facts About Oxides

  12. 12
    • GS Gr8 S11 L1 (2015)

    • Experiments to Show The Difference Between Acidic and Basic Oxide

    • GS Gr8 S11 L2 (2015)

    • GS Gr8 S11 L3 (2015)

    • GS Gr8 S11 L4 (2015)

    • Acid and Bases In Our Daily Life

    • GS Gr8 S11 L5 (2015)

  13. 13
    • GS Gr8 S12 L1 (2015)

    • How Scientists Make Indicators

    • GS Gr8 S12 L2 (2015)

    • GS Gr8 S12 L3 (2015)

    • GS Gr8 S12 L4 (2015)

    • GS Gr8 S12 L5 (2015)

    • Project on Page Number 62

    • GS Gr8 S12 L6 (2015)

  14. 14
    • GS-G8-S13-L1

    • GS-G8-S13-L2

    • GS-G8-S13-L3

    • Neutralization In Our Daily Lifes

    • GS-G8-S14-L4

    • GS-G8-S13-L5

    • Neutralization reaction

    • Quiz 1

    • Quiz 2

    • Explanation for Quiz 1 & 2

  15. 15
    • GS G8 S14 L1(2015)

    • GS G8 S14 L2(2015)

    • GS G8 S14 L3(2015)

    • Finger Prints

    • GS G8 S14 L4(2015)

    • Thermoregulation

    • GS G8 S14 L5(2015)

    • GS G8 S14 L6(2015)

    • Salts

    • Quiz 1

    • Quiz 2

  16. 16
    • GS G8 S15 L1(2015)

    • How Nails Are Formed

    • GS G8 S15 L2(2015)

    • Sebaceous Glands

    • GS G8 S15 L3(2015)

    • GS G8 S15 L4(2015)

    • Integumentary Systems

    • Quiz 1

    • Quiz 2

  17. 17
    • GS G8 S16 L1(2015)

    • How To Protect Our Skin

    • GS G8 S16 L2(2015)

    • Is Dandruff Contagious?

    • GS G8 S16 L3(2015)

    • GS G8 S16 L4(2015)

    • GS G8 S16 L5(2015)

    • Integumentary System diseases

    • Quiz 1

    • Quiz 2

  18. 18
    • GS-G8-S17-L1(2015)

    • GS-G8-S17-L2(2015)

    • GS-G8-S17-L3(2015)

    • GS-G8-S17-L4(2015)

    • GS-G8-S17-L5(2015)

    • Latex allergy

    • Quiz 1

    • Quiz 2

  19. 19
    • GS-G8-S18-L1

    • GS-G8-S18-L2

    • GS-G8-S18-L3

    • The Cardiac Muscle

    • The Strongest Muscle In Our Muscle

    • GS-G8-S18-L4

    • skeletal system

    • What does the skeletal system do?

    • Quiz 1

    • Quiz 2

  20. 20
    • GS-G8-S19-L1

    • A Muscle Game Show

    • GS-G8-S19-L2

    • Muscular Distrophy

    • GS-G8-S19-L3

    • GS-G8-S19-L4

    • Quiz 1

    • Functions of muscle

    • Quiz 2

  21. 21
    • GS-G8-S20-L1

    • GS-G8-S20-L2

    • Why Babies Have Fewer Bones Than Adults?

    • GS-G8-S20-L3

    • GS-G8-S20-L4

    • What Are Cartilages?

    • GS-G8-S20-L5

    • GS-G8-S20-L6

    • GS-G8-S20-L7

    • Skeletal muscle

    • Quiz 1

    • Quiz 2

  22. 22
    • Axial and Appendicular skeleton

    • Quiz 1

    • GS-G8-S21-L1

    • Hyoid Bone

    • Voice and Puberity

    • GS-G8-S21-L2

    • GS-G8-S21-L3

    • GS-G8-S21-L4

    • Quiz 2

  23. 23
    • GS G8 S22 L1

    • GS G8 S22 L2

    • GS G8 S22 L3

    • Joints

    • GS G8 S22 L4

    • GS G8 S22 L5

    • Osteoporosis

    • GS G8 S22 L6

    • Quiz 1

    • Quiz 2

    • Cartilage

  24. 24
    • GS G8 S23 L1

    • GS G8 S23 L2

    • GS G8 S23 L3

    • GS G8 S23 L4

    • Enamel

    • GS G8 S23 L5

    • Wisdom Teeth

    • Digestion

    • Quiz 1

    • Quiz 2

  25. 25
    • GS-G8-S24-L1

    • Gastric Juice

    • Chyme

    • GS-G8-S24-L2

    • GS-G8-S24-L4

    • GS-G8-S24-L3

    • GS-G8-S24-L5

    • Quiz 1

    • stomach and intestines

    • Quiz 2

  26. 26
    • GS-G8-S25-L1

    • GS-G8-S25-L2

    • GS-G8-S25-L3

    • How To Prevent Gastritis

    • GS-G8-S25-L4

    • GS-G8-S25-L5

    • Constipation

    • GS-G8-S25-L6

    • GS-G8-S25-L7

    • Quiz 1

    • Digestive system

    • Quiz 2

  27. 27
    • GS G8 S26- L1

    • Breathing

    • GS G8 S26- L2

    • GS G8 S26- L3

    • GS G8 S26- L4

    • GS G8 S26- L5

    • Pharynx

    • Respiratory systems

    • Quiz 1

    • Quiz 2

  28. 28
    • GS G8 S27- L1

    • GS G8 S27- L2

    • Sinusitis

    • GS G8 S27- L3

    • GS G8 S27- L4

    • GS G8 S27- L5

    • Quiz 1

    • Solution For The Quiz-1

    • Respiratory system diseases

    • Quiz 2

  29. 29
    • GS G8 S28- L1

    • Circulatory System

    • GS G8 S28- L2

    • GS G8 S28- L3

    • GS G8 S28- L4

    • Easy Way To Remember Heart Chamber

    • GS G8 S28- L5

    • Quiz 1

    • Circulatory systems

    • Quiz 2

  30. 30
    • GS G8 S29- L1

    • GS G8 S29- L2

    • Blood

    • GS G8 S29- L3

    • GS G8 S29- L4

    • Circulatory System

    • GS G8 S29- L5

    • Quiz 1

    • Blood

    • Quiz 2

  31. 31
    • GS G8 S30- L1

    • The Reproductive System

    • GS G8 S30- L2

    • Healthy Reproductive System

    • GS G8 S30- L3

    • GS G8 S30- L4

    • GS G8 S30- L5

    • GS G8 S30- L6

    • The male reproductive systems

    • Quiz 1

    • Quiz 2

  32. 32
    • GS G8 S31- L1

    • GS G8 S31- L2

    • Gametes

    • GS G8 S31- L3

    • Uterus

    • GS G8 S31- L4

    • GS G8 S31- L5

    • The female reproductive system

    • Quiz

    • Quiz 2

  33. 33
    • GS G8 S32 L1

    • GS G8 S32 L2

    • GS G8 S32 L3

    • Secondary Sexual Characterstics

    • GS G8 S32 L4

    • Menustural Cycle

    • GS G8 S32 L5

    • GS G8 S32 L6

    • Sexual characteristics

    • Quiz 2

  34. 34
    • GS G8 S33- L1

    • GS G8 S33- L2

    • GS G8 S33- L3

    • GS G8 S33- L4

    • GS G8 S33- L5

  35. 35
    • G-8 GS- S34-L1

    • G-8 GS- S34-L2

    • What Is Ecosystem?

    • Proto-Cooperation

    • G-8 GS- S34-L3

    • G-8 GS- S34-L4

    • G-8 GS- S34-L5

    • Quiz 1

    • Quiz 2

    • Biotic and abiotic factors

  36. 36
    • G-8 GS- S35-L1

    • Symbiosis

    • G-8 GS- S35-L2

    • G-8 GS- S35-L3

    • Competition

    • G-8 GS- S35-L4

    • Quiz 1

    • Symbiosis relationship

    • Quiz 2

  37. 37
    • G-8 GS- S36-L1

    • G-8 GS- S36-L2

    • Five Amazing Facts About The Earth

    • G-8 GS- S36-L3

    • G-8 GS- S36-L4

    • Abiotic Factor: Land Topography

    • G-8 GS- S36-L5

    • Quiz 1

    • Abiotic factors of an ecosystem

    • Quiz 2

  38. 38
    • G-8 GS- S37-L1

    • G-8 GS- S37-L2

    • G-8 GS- S37-L3

    • G-8 GS- S37-L4

    • G-8 GS- S37-L5

    • Quiz 1

    • Trophic level

    • Quiz 2

  39. 39
    • G-8 GS- S38-L1

    • G-8 GS- S38-L2

    • G-8 GS- S38-L3

    • G-8 GS- S38-L4

    • G-8 GS- S38-L5

    • Quiz 1

    • Food chain and food web

    • Quiz 2

  40. 40
    • G-8 GS- S39-L1

    • G-8 GS- S39-L2

    • G-8 GS- S39-L3

    • G-8 GS- S39-L4

    • G-8 GS- S39-L5

    • Who Survive - Trophic Pyramid Edition!

    • Trophic of pyramid

    • Quiz 1

    • Quiz 2

  41. 41
    • G-8 GS- S40-L1

    • G-8 GS- S40-L2

    • G-8 GS- S40-L3

    • Nitrogen

    • Oxygen

    • G-8 GS- S40-L4

    • G-8 GS- S40-L5

    • Nutrient cycle and energy flow

    • Quiz 1

    • Quiz 2

  42. 42
    • G-8 GS- S41-L1

    • G-8 GS- S41-L2

    • Ocean and CO2

    • G-8 GS- S41-L3

    • G-8 GS- S41-L4

    • G-8 GS- S41-L5

    • What Makes Water So Special?

    • G-8 GS- S41-L6

    • G-8 GS- S41-L3_1

    • Quiz

    • Water cycle

    • Quiz 2

  43. 43
    • Gs- G8-S42-L1

    • Gs- G8-S42-L2

    • Gs- G8-S42-L3

    • The Grand Ethiopian Renaissance Dam (GERD)

    • Gs- G8-S42-L4

    • Gs- G8-S42-L5

    • Natural Resources

    • Quiz 1

    • Quiz 2

  44. 44
    • GS G8 S43 L1

    • GS G8 S43 L2

    • Comparing Soil Type and Suitability For Three Different Crops

    • GS G8 S43 L3

    • GS G8 S43 L4

    • GS G8 S43 L5

    • Soil

    • GS G8 S43) Quiz 1

    • Quiz 2

  45. 45
    • GS G8 S44 L1

    • GS G8 S44 L2

    • GS G8 S44 L3

    • GS G8 S44 L4

    • Soil and It's Thiny Helpers

    • GS G8 S44 L5

    • Why don't Satellite Melt or Burn Up?

    • Soil conservation

    • GS G8 S44 (Quiz 1

    • Quiz 2

  46. 46
    • GS G8 S45 L1

    • Unique Properties of Water

    • GS G8 S45 L2

    • GS G8 S45 L3

    • GS G8 S45 L4

    • GS G8 S45 L5

    • Water

    • GS G8 S45) Quiz 1

    • Quiz 2

  47. 47
    • Gs- G8-S 46-L1

    • Gs- G8-S 46-L2

    • Gs- G8-S 46-L3

    • Gs- G8-S 46-L4

    • Gs- G8-S 46-L5

    • Air and Air pollution

    • Quiz 1

    • Quiz 2

  48. 48
    • Gs- G8-S 47-L1

    • Gs- G8-S 47-L2

    • Gs- G8-S 47-L3

    • Gs- G8-S 47-L4

    • Forest

    • Quiz 1

    • Quiz 2

  49. 49
    • Gs- G8-S 48-L1

    • Gs- G8-S 48-L2

    • Gs- G8-S 48-L3

    • Gs- G8-S 48-L4

    • Gs- G8-S 48-L6

    • Biodiversity

    • Quiz 1

    • Gs- G8-S 48-L5

    • Quiz 2

  50. 50
    • Gs G8 S49 L1

    • Gs G8 S49 L2

    • Gs G8 S49 L3

    • Gs G8 S49 L4

    • Gs G8 S49 L5

    • Ex-Situ Method of biodiversity conservation

    • Quiz 1

    • Quiz 2

  51. 51
    • Gs- G8-S 50-L1

    • Gs- G8-S 50-L2

    • Gs- G8-S 50-L3

    • Gs- G8-S 50-L4

    • Gs- G8-S 50-L5

    • Gs- G8-S 50-L6

    • Summary

    • Quiz 1

    • Quiz 2

  52. 52
    • Gs- G8-S 51-L1

    • Gs- G8-S 51-L2

    • Gs- G8-S 51-L3

    • Gs- G8-S 51-L4

    • Gs- G8-S 51-L5

  53. 53
    • Gs- G8-S 52-L1

    • Gs- G8-S 52-L2

    • Gs- G8-S 52-L3

    • Gs- G8-S 52-L4

    • Gs- G8-S 52-L5

    • Gs- G8-S 52-L6

    • solar system families

    • Quiz 1

    • Quiz 2

  54. 54
    • Gs- G8-S 53-L1

    • Gs- G8-S 53-L2

    • Gs- G8-S 53-L3

    • Gs- G8-S 53-L4

    • Gs- G8-S 53-L5

    • Outer Planet

    • Quiz 1

    • Quiz 2

  55. 55
    • Gs- G8-S 54-L1

    • Gs- G8-S 54-L2

    • Gs- G8-S 54-L3

    • Gs- G8-S 54-L4

    • Gs- G8-S 54-L5

    • Gs- G8-S 54-L6

    • Formation of solar system

    • Quiz 1

    • Quiz 2

  56. 56
    • Gs- G8-S 55-L1

    • Gs- G8-S 55-L2

    • Gs- G8-S 55-L3

    • Gs- G8-S 55-L4

    • Gs- G8-S 55-L5

    • Gs- G8-S 55-L6

    • comparing planets

    • Quiz 1

    • Quiz 2

  57. 57
    • Gs- G8-S 56-L1

    • Gs- G8-S 56-L2

    • Gs- G8-S 56-L3

    • Gs- G8-S 56-L4

    • Gs- G8-S 56-L5

    • Gs- G8-S 56-L6

    • Earth: Suitability for life

    • Quiz 1

    • Quiz 2

  58. 58
    • G8 GS S57 L1

    • G8 GS S57 L2

    • G8 GS S57 L3

    • G8 GS S57 L4

    • G8 GS S57 L5

  59. 59
    • G8 GS S58 L1

    • G8 GS S58 L2

    • G8 GS S58 L3

    • G8 GS S58 L4

    • G8 GS S58 L5

    • Phenomena of light

    • Quiz 1

    • Quiz 2

  60. 60
    • G8 Gs S59 L5_1

    • G8 Gs S59 L2

    • G8 Gs S59 L3

    • G8 Gs S59 L4

    • G8 Gs S59 L5

    • Refraction and Dispersion of light

    • Quiz 1

    • Quiz 2

  61. 61
    • G8 Gs S60 L1

    • G8 Gs S60 L3

    • G8 Gs S60 L4

    • G8 Gs S60 L5

    • G8 Gs S60 L2

    • G8 Gs S60 L6

    • vision and imaging

    • Quiz 1

    • Quiz 2

  62. 62
    • G8 Gs S61 L1

    • G8 Gs S61 L2

    • G8 Gs S61 L3

    • G8 Gs S61 L4

    • G8 Gs S61 L5

    • Sound

    • Quiz 1

    • Quiz 2

  63. 63
    • G8 Gs S62 L1

    • G8 Gs S62 L2

    • G8 Gs S62 L3

    • G8 Gs S62 L4

    • G8 Gs S62 L5

    • Sound pollution and Echo

    • Quiz 1

    • Quiz 2

  64. 64
    • G8 Gs S63 L1

    • G8 Gs S63 L2

    • G8 Gs S63 L3

    • G8 Gs S63 L4

    • G8 Gs S63 L5

    • Heat

    • Quiz 1

    • Quiz 2

  65. 65
    • G8 Gs S64 L1

    • G8 Gs S64 L2

    • G8 Gs S64 L3

    • G8 Gs S64 L4

    • G8 Gs S64 L5

    • simple circuit

    • Quiz 1

    • Quiz 2

  66. 66
    • G8 Gs S65 L1

    • G8 Gs S65 L2

    • G8 Gs S65 L3

    • G8 Gs S65 L4

    • G8 Gs S65 L5

    • G8 Gs S65 L6

    • Magnetism

    • Quiz 1

    • Quiz 2

  67. 67
    • G8 Gs S66 L1

    • G8 Gs S66 L2

    • G8 Gs S66 L3

    • G8 Gs S66 L4

    • G8 Gs S66 L5

    • G8 Gs S66 L6

    • Magnetic field

    • Quiz 1

    • Quiz 2

  68. 68
    • G8 Gs S67 L1

    • G8 Gs S67 L2

    • G8 Gs S67 L3

    • G8 Gs S67 L4

    • G8 Gs S67 L5

  69. 69
    • G8 Gs S68 L1

    • G8 Gs S68 L2

    • G8 Gs S68 L3

  70. 70
    • G8 Gs S69 L1

    • G8 Gs S69 L2

    • G8 Gs S69 L3

    • G8 Gs S69 L4