PROJECT： learn

Discover Routine! Advance

popular

difficulty

Let's Try Quiz

#science #everyday #science

Widget code

A lake start freezing because of the cold atmosphere. it will first freeze?

PROJECT：learn

Discover Routine! Advance

popular

difficulty

  • At the top surface
  • At the bottom
  • In the middle part
  • Uniformly throughout the water body

    • Let's try quiz!

    #science #everyday #science

    Qzloud