Answer:
Physical changes can easily be reversed but chemical changes cannot because in physical change only state is changed while in chemical change, new substances are formed. For example, when water in liquid form is condensed, it changes into solid form (ice). It is a physical change because water in liquid and solid have the same chemical formula only arrangement of molecules are different. Burning of wood is a chemical change because new substances i. e. carbondioxide and heat is produced.
Answer:
Explanation: New experimental data can lead to a better understanding of theories or can even disprove them.
Perceptual constancy
Perceptual constancy is the
ability to view or consider an object as unchanged under different conditions
such as changes in distance, physical features or illumination. For the
question above, Immanuel knows the kite is not shrinking due to his brain's
ability to maintain perceptual constancy.
Sugar molecules, cells use carbon dioxide and energy from the sun to make sugar molecules. They are moved into the sieve elements (phloem cells) through active transport. Water follows the sugar molecules into the sieve elements through osmosis (since water passively diffuses into regions of higher solute concentration).
