Science

Chemical Tests
Lesson 3 Exploring the Five Unknown Solids
Unknown	Things you don't know are 'unknown' to you. Things no one knows are 'unknown' to the world. Unknowns are what scientists are interested in, to study and find out.
Known	Things you do know are 'known' to you. Things scientists know are 'known' facts to the world. Students ask or investigate questions about their 'unknown'. They will learn the 'known' facts and become knowledgeable. The more you know the more knowledgeable you are. You may, like a scientist, study an 'unknown' and discover something and describe it as a 'known' fact.
Classification	Separating out the 'known' things into different groups and giving them a name is called classification. Scientists, chemists, pharmacists, librarians, police.... all use this method to sort out their 'known' things. Who knows an example? What is a book catalog? A list of different Dinosaurs? Solids, Liquids, Gases and Plasmas?
Class Property Table	Making a list, checking it twice, giving a name and what it all means then call it a property table. Santa Claus will say: that is Johnny's Table of Christmas Gifts..
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What to learn? 'Unknown' to 'Known' How? 1. Gather information about the 'unknown' and turn them into 'known' facts. (Use senses to observe and tools to do experiments with things) 2. Discuss with class/team and group the 'known' facts into tables for each 'unknown' chemicals. (Use noun, ing-word (what is happening) and adjectives to describe what you have observed) 3. Make a table for the 5 'unknown' chemicals and see whether you have enough 'known' facts to name them. 4. If you do have enough 'known' facts about the chemicals, you can write a poem and draw a picture about them, using the 'known' or properties (concrete poems)