The simplest way to put it would be to say borders move more than mountains.
This involves a change of state of the water. Before, during, and after the boiling, it remains water. So, since the substance doesn't change its character, the boiling of water is a physical change.
Since the chemical structure of the iron (Fe) does not change, it is a physical change. I would like to point out that this does make the likelihood that a chemical change will take place higher, more energy equals a faster phase transformation. If the iron it is sitting in air, the outer surface is likely under going a chemical change into iron oxide (FeO, Fe3O4, and Fe2O3) more commonly known as rust. Hence, iron as with most metals is found as Iron oxide and processed into Iron. More facts about iron can be found here: http://en.wikipedia.org/wiki/Iron
it is a physical changeIce melting is a physical change. Anything changing from a solid to a liquid (or liquid to solid), or from a liquid to gas (or gas to liquid) is a physical change).See the Related Questions for more information.physical change is anything changing from a solid to a liquid
Creating a mixture involves physically combining two or more substances without changing the chemical makeup of the individual substances. A chemical change, on the other hand, involves a rearrangement of atoms and the formation of new substances with different properties. Mixing substances together does not alter the chemical composition of the individual components, so it is classified as a physical change.
it can be both, but more likely is it a chemical change.
a political map
A political world map is more likely to change than a physical world map because political boundaries, governments, and international relations are constantly shifting compared to physical features like landforms and climate which change at a slower pace.
The political map as continents and territories over time change, divide and or come together. The physical map does change but this is eventually after hundreds or thousands of years.
A political map is most likely to change because if you think of politics the politics can change anytime but people can't just say there's a new continent by tomorrow.
"Better" is not the term you would use for comparing physical to chemical without defining the principle of what is better, but a chemical change is a more permanent change that will more than likely require input of energy.
Physical Change
It wouldn’t change much. Might split the vote allowing one party to win over the other.
A physical map typically does not include political boundaries, such as country borders and cities. Its main focus is on showing the natural features of the Earth's surface, such as mountains, rivers, forests, and deserts. Political information, like capital cities or state boundaries, is more commonly found on a political map.
This involves a change of state of the water. Before, during, and after the boiling, it remains water. So, since the substance doesn't change its character, the boiling of water is a physical change.
It is a physical change because is it changing the leaf? No, no it isn't so it is a physical change.
I would add more green spaces and natural elements to create a more calming and aesthetically pleasing environment.
A physical change is a change that affects one or more properties of matter. For example, if you have a popsicle and it melts, it's looks change but the physical properties don't