| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.75 |
| Score | 0% | 55% |
Molecules and atoms that are outputs from a chemical reaction are known as which of the following?
results |
|
products |
|
side effects |
|
reactants |
During a chemical reaction molecules and atoms (reactants) are rearranged into new combinations that result in new kinds of atoms or molecules (products).
Water coming to a boil on a stove, ice melting, and steam from a cup of coffee are all examples of which of the following?
conduction |
|
convection |
|
radiation |
|
reflection |
Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
Which of the following is not part of the carbon cycle?
decomposition |
|
precipitation |
|
photosynthesis |
|
respiration |
The carbon cycle represents the ciruit of carbon through Earth's ecosystem. Carbon dioxide (CO2) in the atmosphere is absorbed by plants through photosynthesis. Plants then die and release carbon back into the atmosphere during decomposition or are eaten by animals who breathe (respiration) the carbon into the atmosphere they exhale and produce waste which also releases carbon as it decays.
In cell biology, where does DNA replication take place?
Golgi apparatus |
|
mitochondria |
|
nucleus |
|
cytoplasm |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
When the clouds become too saturated with water, the water is released as precipitation in the form of:
snow |
|
rain |
|
ice |
|
snow or ice |
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.