Essential Question: How are elements, compounds, and mixtures related?

1. Essential Question:How are elements, compounds, and mixtures related? MS-PS-1.1 - Substances are made from different types of atoms, which combine with one another in various ways. Atoms form molecules that range in size from two to thousands of atoms

2. Matter is anything that has mass and takes up space (volume)There are different types of Matter: Pure Substances (elements and compounds) and MixturesThe composition (structure) of a substance determines its Matter type.

3. Elements, Compounds, and Mixtures Activating Strategy [see resources]

4. While viewing the lesson, record your notes on the Graphic Organizer

5. Characteristics of Pure Substances What does this mean? • Fixed composition • Distinct properties • Cannot be separated into simpler substances by physical methods • Can only be changed in identity and properties by chemical methods • Properties do not vary one sample to another sample

6. Types of Pure Substances: Elements And Compounds

7. Elements • Made up of one type of atom • Cannot be broken down byphysical and chemical methods • Examples: Oxygen, Nitrogen, Carbon Sample of the Element Chlorine Sample of the Element Lead

8. Compounds • Form when two or moredifferent elements join (bond) together chemically • Composition is identical in each sample • Can be separated only by chemical methods • Properties of a compound are totally different than the properties of the elements that form them • Examples: Water, Carbon dioxide, Sugar Animated images and notes from http://www.chem.purdue.edu/gchelp/atoms/elements.html

9. Compounds

10. Think, Pair, ShareWhat’s the difference between a molecule and a compound? A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements. All compounds are molecules but not all molecules are compounds. https://www.youtube.com/watch?v=0gsrW0Vb5sw

11. Elements and CompoundsStudy Jams Video http://studyjams.scholastic.com/studyjams/jams/science/matter/elements-and-compounds.htm

12. Mixtures • Form when elements and/or compounds are combined physically • Properties of a mixture are related to its components • Composition varies from sample to sample • Can be separated by physical methods • Examples of Mixtures: Tea, Perfume, Air, Salad, Beach sand, oil and vinegar salad dressing, etc.

13. Mixtures Mixture of Different Compounds Mixture of Different Elements

14. Mixtures Mixtures are often referred to as homogeneous or heterogeneous.

15. Mixtures • Homogeneous mixtures (Solutions) have a uniform distribution. • For example: Tea, Perfume, Air

16. Mixtures • Heterogeneous mixtures do not have a uniform distribution. • Parts are often visible • For example:Salad, Beach Sand,Oil and Vinegar dressing

17. Mixtures Study Jams Video http://studyjams.scholastic.com/studyjams/jams/science/matter/mixtures.htm

18. Distinguishing between Elements, Compounds, and Mixtures

19. Distributed Summarizing The diagram below shows how two elements can be mixed together…Which is a Compound? A Mixture? C. Compound A. B. D. Mixture

20. Match the Picture to the Description Compound of 2 Elements Mixture of Molecules Element Molecule Compound of 3 Elements Element/ Atoms Mixture of Atoms

21. Elements, Compounds, and Mixtures Matching Pairs Activity[see resources]

22. Additional Review Activities[see resources] Vocabulary Matching Pairs Types of Matter Cube Review

23. Summarizing Strategy:Elements, Compounds, & Mixtures Constructed Response[see resources]