Warm up (p. 4): You have analyzed a mixture and a pure substance Warm up (p. 4): You have analyzed a mixture and a pure substance. Based upon your observations and the text you have read, what do you think is the difference between a mixture and a pure substance? Date Session # Activity Page # 8/30-31 1 A Matter of Evidence Lab Results 3 9/1, 5 2 Element Compound Mixture Flow chart 4 Element Compound Mixture texts 5 Homework: Take home the Tiered Plan For Missing Work and give it to your folks. Please have them sign it and return it to your homeroom on Tuesday Chrome book policy home and signed

TLW classify different representations of matter, develop definitions of each class of matter and create a flow chart to classify samples of matter.

How is the first diagram related to the second diagram? p2 Read and annotate these two texts from the stance: What Surprised Me? Read again: How is the first diagram related to the second diagram? What is a pure substance? Which would you rather have: pure gold or 10K, 14K gold? What is pure gold? What makes 14K gold impure? Why do you think we have different types when making jewelry?

Answer the essential question at the bottom of your lab sheet Ink is not a pure substance. Using evidence from the texts, explain what chemists might mean when they use the term “pure substance.”

All matter can be classified as either a pure substance or a mixture All matter can be classified as either a pure substance or a mixture. Once you have done that, it is easy to determine if the substance is an element, compound or mixture P 4 All components of the material are the same. CANNOT be separated by physical means No Yes

Text 1 Cu O2 O3 N2 Ne H2O CO2 CO C6H12O6 NaCl Salt Water Alloys Air P5 Elements Compound s Mixtures Cu O2 O3 N2 Ne H2O CO2 CO C6H12O6 NaCl Salt Water Alloys Air Soil Ink Elements: How are they all similar?

Text 1 Cu O2 O3 N2 Ne H2O CO2 CO C6H12O6 NaCl Salt Water Alloys Air P5 Element Compound Mixture Cu O2 O3 N2 Ne H2O CO2 CO C6H12O6 NaCl Salt Water Alloys Air Soil Ink Compounds: How are they all similar? How are they similar to Elements? How are they different from Elements?

Text 1 Cu O2 O3 N2 Ne H2O CO2 CO C6H12O6 NaCl Salt Water Alloys Air P5 Element Compound Mixture Cu O2 O3 N2 Ne H2O CO2 CO C6H12O6 NaCl Salt Water Alloys Air Soil Ink Mixtures: How are they all similar? How are they different from Elements and Compounds?

Text 1 Cu O2 O3 N2 Ne H2O CO2 CO C6H12O6 NaCl Salt Water Alloys Air Element Compound Mixture Cu O2 O3 N2 Ne H2O CO2 CO C6H12O6 NaCl Salt Water Alloys Air Soil Ink Which of these are pure substances? Page 4 With your group, describe an element, a compound and a mixture.

Text 2 P5 Which of these substances are pure? Explain, reference features of the diagram in your response. Identify each as an element, compound or mixture. Explain, reference features of the diagram in your explanation. P 4 With your group, refine your 1st description of an element, a compound and a mixture.

Difference between elements and compounds… What question can you ask yourself? All components of the material are the same. CANNOT be separated by physical means No Yes Different components of the mixture can be seen? Made of two or more types of atoms? Can be broken down into simpler substances?