Season 1
S1.E1 ∙ FlightS1.E2 ∙ The Earth's CrustS1.E3 ∙ DinosaursS1.E4 ∙ SkinS1.E5 ∙ BuoyancyS1.E6 ∙ GravityS1.E7 ∙ DigestionS1.E8 ∙ Phases of MatterS1.E9 ∙ BiodiversityS1.E10 ∙ Simple MachinesS1.E11 ∙ The MoonS1.E12 ∙ SoundS1.E13 ∙ GarbageS1.E14 ∙ StructuresS1.E15 ∙ Earth's SeasonsS1.E16 ∙ Light and ColorS1.E17 ∙ CellsS1.E18 ∙ ElectricityS1.E19 ∙ Outer SpaceS1.E20 ∙ Eyeballs
Season 2
S2.E1 ∙ MagnetismS2.E2 ∙ WindS2.E3 ∙ Blood & CirculationS2.E4 ∙ Chemical ReactionsS2.E5 ∙ Static ElectricityS2.E6 ∙ Food WebS2.E7 ∙ Light OpticsS2.E8 ∙ Bones and MusclesS2.E9 ∙ Ocean CurrentsS2.E10 ∙ HeatS2.E11 ∙ InsectsS2.E12 ∙ BalanceS2.E13 ∙ The SunS2.E14 ∙ The BrainS2.E15 ∙ ForestsS2.E16 ∙ CommunicationS2.E17 ∙ MomentumS2.E18 ∙ ReptilesS2.E19 ∙ AtmosphereS2.E20 ∙ Respiration
Season 3
S3.E1 ∙ Planets and MoonsS3.E2 ∙ PressureS3.E3 ∙ PlantsS3.E4 ∙ Rocks & SoilS3.E5 ∙ EnergyS3.E6 ∙ EvolutionS3.E7 ∙ Water CycleS3.E8 ∙ FrictionS3.E9 ∙ GermsS3.E10 ∙ ClimatesS3.E11 ∙ WavesS3.E12 ∙ Ocean LifeS3.E13 ∙ MammalsS3.E14 ∙ Spinning ThingsS3.E15 ∙ FishS3.E16 ∙ Human TransportationS3.E17 ∙ WetlandsS3.E18 ∙ BirdsS3.E19 ∙ PopulationsS3.E20 ∙ Animal Locomotion
Season 4
S4.E1 ∙ Rivers and StreamsS4.E2 ∙ NutritionS4.E3 ∙ Marine MammalsS4.E4 ∙ EarthquakesS4.E5 ∙ NTV Top 11 Video CountdownS4.E6 ∙ SpidersS4.E7 ∙ Pollution SolutionsS4.E8 ∙ ProbabilityS4.E9 ∙ PseudoscienceS4.E10 ∙ FlowersS4.E11 ∙ ArchaeologyS4.E12 ∙ DesertsS4.E13 ∙ AmphibiansS4.E14 ∙ VolcanoesS4.E15 ∙ InvertebratesS4.E16 ∙ HeartS4.E17 ∙ InventionsS4.E18 ∙ ComputersS4.E19 ∙ FossilsS4.E20 ∙ Time
Season 5
S5.E1 ∙ ForensicsS5.E2 ∙ Space ExplorationS5.E3 ∙ GenesS5.E4 ∙ ArchitectureS5.E5 ∙ FarmingS5.E6 ∙ Life CyclesS5.E7 ∙ Do-It-Yourself ScienceS5.E8 ∙ Atoms and MoleculesS5.E9 ∙ Ocean ExplorationS5.E10 ∙ Lakes and PondsS5.E11 ∙ SmellS5.E12 ∙ CavesS5.E13 ∙ FluidsS5.E14 ∙ ErosionS5.E15 ∙ Comets and MeteorsS5.E16 ∙ StormsS5.E17 ∙ MeasurementS5.E18 ∙ PatternsS5.E19 ∙ Science of MusicS5.E20 ∙ Motion