SP power point 2 205

What is the boiling point of water at sea level?

• 0°C

• 4°C

• 100°C

• 273°K

By what percentage does water expand from 4°C to 99°C?

• 10%

• 4%

• 1600%

• 0%

At what temperature does water reach its maximum density?

• 0°C

• 4°C

• 100°C

• 273°K

How much does ice expand by when it freezes?

• 4%

• 10%

• 1600%

• 0%

How many times does steam expand compared to water?

• 4 times

• 10 times

• 1600 times

• 100 times

What happens to water when it is heated to temperatures up to 100°C?

• It contracts by 4%

• It expands by 4%

• It turns into ice

• It remains unchanged

At what temperature does water turn to steam and expand significantly?

• 50°C

• 75°C

• 100°C

• 150°C

By how much can water expand when it turns to steam at 100°C?

• 100 times its original volume

• 500 times its original volume

• 1,600 times its original volume

• 2,000 times its original volume

Why is it rare to find pure water?

• It is a weak solvent

• It is a very powerful solvent

• It evaporates quickly

• It is too dense

What can water do over time?

• Freeze, melt, evaporate

• Erode, corrode, absorb

• Expand, contract, dissolve

• Harden, soften, solidify