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Explain what happens to molecules during a phase change Part 1
EXPLAIN WHAT HAPPENS TO MOLECULES DURING A PHASE CHANGE
Contributed by: Chelsea F.
Date of creation: 9/30/11
Figure 1: Fire
Matter can be found in 4 states, liquid, solid, gas and plasma. In solids molecules are tightly packed together. When energy like heat is applied it turns to liquid. After even more energy is added the liquid turns in to a gas. When a gas has LOTS of heat added it turns into plasma, the 4th state of matter. Plasma makes up more than 99% of our visible universe. It's charged up particles make up stars.
RELATED TOPIC 1
Figure 3: Water
Examples of solids are ice, rock, and plastic. Some liquids are water (Figure 3), lava, and certain acids. Some Gases are oxygen, carbon dioxide, and water vapor. Stars, lighting (Figure 2) and fire (Figure 1) are examples of plasma. Bose Einstein Condensate is the fifth and last state of matter.
Figure 2: Lightning
RELATED TOPIC 2
Matter is made up of atoms. Atoms are made up of protons, neutrons and electrons. Protons have a positive charge, neutrons have no charge and electrons have a negative charge. In an atom there is a nucleus made up of protons and neutrons. Around the nucleus there are electrons bouncing around it. In every atom there are different amounts of protons and neutrons. A hydrogen atom has a single proton with an electron revolving around while a Beryllium atom has 4 protons and 5 neutrons with 4 electrons orbiting around. Molecules are made up of two or more atoms joined together. For example a water molecule is made up of 2 hydrogen atoms and 1 oxygen atoms. When energy is applied it will change its state of matter. From ice to water then to water vapor.
Figure 4: Atom
Neutron- no charge
Electron –Negative charge
Solid-Consists of tightly packed molecules
Liquid-Contains loose molecules
Gas-Has very spread out molecules
Plasma-The result of lots of energy being added to a gas
Electric charge-A physical property of matter
Lewis, Peter and Briony Ryles. Introducing Chemistry: Atoms, Molecules, and States of Matter. Tuscon: Brown Bear Books Limited, 2010.print.
States of Matter
. Prod. Discovery Education. Discovery Education, 2002. Discovery Education. Web. 20 September 2011. <
Wikipedia. 18 September 2011. Web. 22 September 2011.
File:Water droplet blue bg05.jpg
. Wikipedia. 24 April, 2006. Web. 23 September 2011.
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