| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
Water freezing or boiling is an example of which of the following?
cooling |
|
sublimation |
|
phase transition |
|
heating |
A substance undergoes a phase transition when it moves from one state of matter to another, for example, when water freezes or boils.
A subatomic particle found in the nucleus of an atom. It carries no electric charge. This desribes which of the following?
electron |
|
proton |
|
neutron |
|
atom |
A neutron is a subatomic particle found in the nucleus of an atom. It is neutral as it carries no electric charge.
What kind of weather front is likely to create clouds and storms?
cold front |
|
temperate front |
|
stationary front |
|
warm front |
A warm front is the boundary between warm and cool (or cold) air when the warm air is replacing the cold air. Warm air at the surface pushes above the cool air mass creating clouds and storms.
__________ is caused by a lack of Vitamin C.
diabetes |
|
shingles |
|
anemia |
|
scurvy |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.
Which of the following does not represent the freezing point of water?
32°F |
|
273K |
|
0°F |
|
0°C |
The Fahrenheit scale fixes the freezing point of water at 32°F, the Celsuis scale at 0°C, and the Kelvin scale at 273K.