EXPLAIN WHAT HAPPENS TO MOLECULES DURING A PHASE CHANGE

Contributed by: Chelsea F.

Date of creation: 9/30/11







CJF_plasma.JPG
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

CJF_Water.jpg
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.











Cjf_Lightning.jpg
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.


CJF_Atom.JPG
Figure 4: Atom
















GLOSSARY

Proton-Positive charge

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








CITATIONS

Lewis, Peter and Briony Ryles. Introducing Chemistry: Atoms, Molecules, and States of Matter. Tuscon: Brown Bear Books Limited, 2010.print.

Physical Science: States of Matter. Prod. Discovery Education. Discovery Education, 2002. Discovery Education. Web. 20 September 2011. <http://www.discoveryeducation.com/>.

Wikipedia: Electric Charge. //http://en.wikipedia.org/wiki///. Wikipedia. 18 September 2011. Web. 22 September 2011.

Wikipedia:File:Water droplet blue bg05.jpg. http://en.wikipedia.org/wiki/ . Wikipedia. 24 April, 2006. Web. 23 September 2011.