There is no molecular change ;)
Origami is a physical change because it involves the folding and manipulation of paper without altering its chemical composition.
A physical change that does not produce a new substance is called a reversible change. This means the change can be undone by reversing the process, such as melting or freezing.
It's a physical change why are some people f$#@%ing stupid and saying a chemical change??
Hardness is a physical change. It does not involve a change in the chemical composition or structure of a substance, but rather a change in its physical properties such as strength or resistance to deformation.
It's a physical change, because no chemicals are changing if I cut a banana.
Yes, the vast majority of climate scientists agree that there is conclusive evidence showing that carbon dioxide and other greenhouse gases are driving climate change. This consensus is supported by multiple lines of evidence, including historical data, climate models, and physical principles.
A witnesses' memory can change but the physical evidencewill remain the same.
bob
Changes such as a change in state (solid to liquid), change in color, change in odor, change in solubility, or change in temperature do not provide direct evidence that a chemical reaction has occurred. These changes can be indicative of a physical change rather than a chemical change. To confirm a chemical reaction, additional evidence such as the formation of new substances, evolution of gas, or consumption of reactants is necessary.
Yes, they can, if new evidence is discovered to support a change in the theory. Physical theories are not provable in the sense of mathematical theorems. They depend on evidence, and they can be disproved if enough contrary evidence comes up.
The was becomes liquid and drips down the rest of the candle.
Cooking the eggs,because a solid is formed this is evidence of a chemical change... Hope that helps.
A solution turning cloudy is evidence of a chemical change.
Crumple is a physical change.
This is evidence of a chemical change. When acids react with carbonate minerals in rocks, they create gas (CO2), which leads to the formation of bubbles. This reaction results in the formation of new substances, indicating a chemical change.
You must video tape it and make sure the final result is either a physical change or a chemical change.
Physical