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Grade 5 Science Lesson 7 Effects of Human Activities on the Environment
Grade 3 Science Lesson 6 Environment And Its Pollution
Grade 4 Science Lesson 18 Food and Nutrition
Grade 2 Science Lesson 14 Heat and Light : Sources and Uses
Grade 2 Science Lesson 22 Being Safe from Diseases
Grade 3 Science Lesson 9 A Windy Day
Grade 5 Science Lesson 19 Importance of Environmental Cleanliness
Grade 5 Science Lesson 12 The Earth
Grade 3 Science Lesson 13 Means Of Communication
Grade 3 Science Lesson 20 Diseases