WorksheetsΓιατί ο πάγος επιπλέει;
Total questions: 1
Worksheet time: 6mins
Ποιο είναι το πιο άφθονο μόριο στο σώμα μας;
Οξυγόνο
Διοξείδιο του άνθρακα
νερό
Άζωτο
What happens to the kinetic energy of water molecules as the temperature decreases?
Increases
Remains constant
Fluctuates
Decreases
What kind of bond does water have that most other substances don't?
Ionic bond
Covalent bond
Metallic bond
Hydrogen bond
At what temperature does the kinetic energy of water molecules start to fall below the energy of the hydrogen bonds?
4 degrees Celcius
2 degrees Celcius
0 degrees Celcius
6 degrees Celcius
What is the molecular structure of solid water, ice, like?
Tetrahedral
Cubic
Hexagonal
Disordered
What would happen if ice did not float on water?
Lobster rolls would disappear
Canadian kids would lose their winter activities
The ocean floor would be the coldest part of the ocean
All of the above
What would happen to the white polar ice caps if ice did not float on water?
They would disappear
They would remain the same
They would change color
They would grow larger
What would be the impact on the oceans if ice did not float on water?
They would become warmer
They would freeze completely
They would lose their ability to regulate the atmosphere
They would disappear
