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Watch Later 5:21

S2_SCI_9.4.3 _Acid rain

By: t2105, Views: 214

S2_SCI_9.4.3 _Acid rain

Watch Later 9:17

S2_SCI_9.5 _Potential hazards related to the use of acids and alkalis

By: t2105, Views: 233

S2_SCI_9.5 _Potential hazards related to the use of acids and alkalis

Watch Later 8:12

F4C_RevisionEx_Ch11_Q3

By: t9431, Views: 247

F4C_RevisionEx_Ch11_Q3

Watch Later 10:27

感恩卡製作01

By: t2106, Views: 226

Thank you card

Watch Later 12:16

S1_SCI_6.1_Matter and particle theory

By: t2105, Views: 485

S1_SCI_6.1_Matter and particle theory

Watch Later 10:24

S1_SCI_6.2_Particle model

By: t2105, Views: 303

S1_SCI_6.2_Particle model

Watch Later 6:18

S1_SCI_6.3_Dissolving

By: t2105, Views: 222

S1_SCI_6.3_Dissolving

Watch Later 9:09

S1_SCI_6.4_Thermal expansion and contraction

By: t2105, Views: 261

S1_SCI_6.4_Thermal expansion and contraction

Watch Later 9:27

S1_SCI_6.6_Density

By: t2105, Views: 211

S1_SCI_6.6_Density

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