1. is made using one or more of the five senses.
2. an independent variable is a variable that' in an experiment.
3. an explanation based on an observation is a a/an
4. there may be only in an experiment.
5. is made using tools or measurement.
6. what's the difference between an observation and inference?

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.

the framers of the constitution insisted that federal judges be nominated instead of elected due to their desire to have judges above the shifting whims of the masses.

the hope, whether achieved or not, was that federal judges would only be beholden to the law and that by not having judges be elected, they would be protected if that law dictated an outcome that ran counter to popular opinion.