Homework: 
Copy Vocab to your science notebook vocab section:

Vocab:  put words into your notes, words + definitions into your vocab section. ALSO NOTE: THE GRAY TEXT SHOULD BE BLACK, BUT I CAN NOT GET IT TO SHOW UP ON THE BLOG, SO TREAT GRAY TEXT AS IF IT LOOKS BLACK. 

• Gas - substance with no definite shape or volume; gas particles spread far apart.
• Liquid - substance with definite volume but no definite shape; particles in a liquid spread far apart enough to flow or pour and take.
• Particles - smaller pieces or parts, such as atoms or molecules, that all substances are made of. Ex: Water is a compound made of identical water molecules; element gold is made of identical gold atoms.
• Phase - matter that is at the same state (gas, liquid, or solid) throughout. During phase change, arrangement & distance between particles changes (not the particles themselves).
• Physical change - difference in appearance that does not change the make-up of the substance or its particles. Ex:  phase change from solid to liquid (melting), liquid to gas (boiling, evaporating), gas to liquid (condensing), or liquid to solid (freezing), or solid to gas.
• Physical properties - A built-in observable characteristic of a substance or material, ex: color, density, flexibility, hardness. These properties help identify pure substances, and don't change whether the sample is large or very small.
• Quantitative data - measurements, or data with numbers),ex: volume, mass, boiling point.
• Qualitative data- information people can observe without measurement (that is, no numbers).
• Solid -  substance with definite shape and volume; particles are packed close together.