I'm pretty sure pennies aren't magnetic but paper clips are so just use a magnet!
Anaphase
No, it's a physical change because you can still separate the two from each other.
Ridges, called spreading centers, happen where two plates move away from each other. As the plates separate, molten mantle material (magma/melted rock) flows up to fill the void.
It depends on the coins' dates. Pennies minted in 1983 and later weigh 2.5 gm. each Pennies minted in 1981 and earlier weigh 3.11 gm. each Pennies minted in 1982 could weigh either amount because the metal composition was changed in the middle of the year.
Divergent Boundary. That is when the plates seperate. Convergent Boundary is when they collide. Transform Boundary is when they slide past each other.
Do it with metal paperclips: they are inexpensive and you can't damage anything when soldering them. Also use hook joints for stable mechanical joints before soldering.solder 4 paperclips together to make a squaresolder another 4 paperclips together to make a second squaresolder another 4 paperclips, one to each corner of one of the squares already made, perpendicular to the plane of the squaresolder each corner of the other square to the remaining end of those paperclips
A billion pennies stacked on top of each other would be 963.13 miles high
No. They are two separate countries that neighbor each other.
they can
Nope - merge and separate are opposites of each other.
Molecules in a liquid can move past each other, if that's what you were trying to ask; I'm not sure what "separate past each other" is supposed to mean.
Depends on which pennies. The NEW US penny weighs 2.5 grams each. The older copper penny weighed 3.11 grams. Pennies from other countries have different weights.
yes
Gas
separate them
Try to see if a paper airplane will fly farther with 5 paperclips on the nose as opposed to 0,1,or 3. Question: Will the # of paperclips on the nose of a paper airplane cause the plane to fly farther? Hypothesis: 5 paperclips on the nose of a paper airplane will make he plane fly farther than with 3,1,or 0 paperclips on the nose. Experiment: Make paper airplanes and fly them with 0 paperclips on the nose. Repeat this test 3 times. Record about how many meters each test flew. Repeat this with 1 paper clip, than 3 paperclips, and finally 5 paperclips. Analyse: Record the average of the 3 tests. write down the steps you took in completing the experiment. Also write down the controlled, dependent, and independent variables of the experiment. Conclusion: 5 paperclips on the nose of the paper airplane will make the plane fly farther than with 0,1,or 3 paperclips on the nose. Compare: Compare the averages, variables, and steps taken along with any other data, to that of other scientists. Remember, a valid experiment can be repeated with duplicated results.
Two pennies stamped from the national mint, indistinguishable from each other.