Solid Matter 2A 28 by 2A28 TUNG YI [2A28童義] https://padlet.com/s21112591/a54veirh2acws5bo en-us 2022-10-15 06:01:47 UTC 2022-10-15 07:42:15 UTC hello@padlet.com Matter s21112591 https://padlet.com/s21112591/a54veirh2acws5bo/wish/2341165826 Matter is all around us and involves everything tangible a person sees, feels, and touches. The flow of water, the air you breath are examples of matter. There are 3 states of matter,  Solid, Liquid and Gas.

]]> 2022-10-15 06:08:37 UTC https://padlet.com/s21112591/a54veirh2acws5bo/wish/2341165826 What is Atom? s21112591 https://padlet.com/s21112591/a54veirh2acws5bo/wish/2341185317 Long time ago, a philosopher called Democritus was the first person to promote atomism, the idea that an atom is the smallest piece of elements and indivisible by emergence of the scientific method. Atom is something divided into smaller pieces and eventually reaches a point that it can't be further divided.]]> 2022-10-15 07:13:52 UTC https://padlet.com/s21112591/a54veirh2acws5bo/wish/2341185317 Dark Matter s21112591 https://padlet.com/s21112591/a54veirh2acws5bo/wish/2341187463 Scientists define dark matter as matter in the universe that cannot be observed directly because it emits very little or electromagnetic radiation and experiences little or no directly measurable interaction with ordinary matter.]]> 2022-10-15 07:20:30 UTC https://padlet.com/s21112591/a54veirh2acws5bo/wish/2341187463 Dark Energy s21112591 https://padlet.com/s21112591/a54veirh2acws5bo/wish/2341190906 Dark Energy is the generic name now being given by astrophysicists and cosmologists to an unknown cosmic force field hypothesised to be responsible for the recently observed acceleration in rate of expansion of the universe.]]> 2022-10-15 07:29:19 UTC https://padlet.com/s21112591/a54veirh2acws5bo/wish/2341190906 Pressure s21112591 https://padlet.com/s21112591/a54veirh2acws5bo/wish/2341195137 Scientists define pressure as force per unit area. The most commonly encountered unit of pressure in the American customary system is pounds-force per square.

Atmospheric pressure plays an important role in many scientific and engineering disciplines. The pressure from the atmospheric
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