| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.86 |
| Score | 0% | 57% |
Molecules and atoms that are inputs to a chemical reaction are known as which of the following?
reactants |
|
fuel |
|
products |
|
components |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
In the classification of life, which of the following is not a domain?
archaea |
|
bacteria |
|
animalia |
|
eukaryota |
The broadest classification of life splits all organisms into three groups called domains. The three domains of life are bacteria, archaea and eukaryota.
When the clouds become too saturated with water, the water is released as precipitation in the form of:
snow or ice |
|
rain |
|
ice |
|
snow |
Rising into the atmosphere, the water condenses into clouds. When the clouds become too saturated with water, the water is released as snow or ice precipitation which may warm as it falls to reach Earth as rain.
Absolute zero is which of the following?
0°C |
|
the freezing point of hydrogen |
|
the coldest temperature possible in the universe |
|
the freezing point of oxygen |
In contrast to the Celsius scale (measured in degrees centigrade) that fixes 0° at the freezing point of water and the Fahrenheit scale that uses 32°, the Kelvin scale fixes 0 at absolute zero (-273°C) which is the lowest temperature possible in the universe.
The energy posessed by a thrown baseball is an example of what kind of energy?
kinetic |
|
transitional |
|
potential |
|
gravitational |
Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.