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List 1. What are five things that change quickly that are easy to observe? List 2. What are five things that change so slowly they are almost unnoticeable? a. For each item on each list, tell if it is living or non-living. How can you tell? b. For each item in the first list, describe what is happening that causes you to notice the change. c. For each item in the second list, describe what you think is happening, even though you might not notice or be sure of what it is.

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Answer:

Five things that change quickly and are observable are as following:

  • Weather: It is a non-living thing. Change in weather can be easily observed when it suddenly rains after a sunny day.
  • Melting of ice: it is a non-living thing and can be seen when ice is kept in warm temperature, it changes from solid to liquid form.
  • Crackers burst: It is a non-living thing. The bursting of crackers is a quick physical change that can be easily noticed after burning the cracker and it burst in pieces.
  • Burning of a candle: It is also a non-living thing. A candle undergoes physical and chemical change where it converts from solid to liquid due to heat.
  • Basil seeds in water: It is also a non-living thing. Basil seeds get swelled when kept in water due to the process of osmosis.

Five things that change so slowly they are almost unnoticeable:

  • Weathering of rocks: It is a non-living thing. Weathering is defined as the process in which rocks and minerals on Earth's surface break down.
  • Second hand in the clock: It is a non-living thing. The movement of the second hand is almost unnoticeable.
  • Depletion of oxygen in the atmosphere: It is a non-living thing. Depletion of oxygen due to pollution is an almost unnoticeable
  • Mutation in some new virus: It is a living thing (mutation occurs in a living body). When a new virus is found and it mutates itself slowly that scientists and doctors did not notice the change in the virus.
  • Pollution caused by plastic: It is a non-living thing. Plastic is one of the major sources of plastic but the pollution by plastic is unnoticeable unless or until the situation got worst.