1. Draw pictures that represent the following: 1. A pure element – only one type of atom present 2. A Mixture of two elements 3. Pure compound – only one type of compound present 4. Mixture of two compounds 5. Mixture of a compounds and an element Do Now Pure Element Mixture of two elements Pure Compound Mixture of two compounds Mixture of a compound and an element

2. Homework and Announcements 1. Textbook Check 2. Science Fair Projects – Presentations start today 3. USA Test Prep 4. Study Vocabulary

3. Expectations  Students will be randomly called to present  Students not presenting will be taking notes  Title: science fair projects  Student’s name – one sentence about their project  You must remain silent during other presentations  Being disruptive or talking will result in a deduction in your grade.  Ask questions at the end!