World of Animals Free online tests for class-3 EVS (Environmental Science including both Science and Social Science) as per NCERT and CBSE syllabus. These FREE online tests are very useful for olympiads as well as regular practice of the chapter. Free online tests includes Birds, beaks, claws, nests, young ones, land animals, water animals. Animal houses, pet and wild animals, carnivorous, herbivorous, omnivorous