html5-img
1 / 33

Week of October 31-November 4, 2011 Teks : 6.2, 6.5,

Week of October 31-November 4, 2011 Teks : 6.2, 6.5,. S Starter: Write the question . What are the different elements that makeup the following compounds? H 2 SO 4 AlF 3 CaNa 2 K 2 Br. Title for Monday, 10-31-2011 Compound Formula lab. Agenda: Starter Compound Formula Lab Exit.

bailey
Télécharger la présentation

Week of October 31-November 4, 2011 Teks : 6.2, 6.5,

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Week of October 31-November 4, 2011Teks: 6.2, 6.5,

  2. S Starter: Write the question. What are the different elements that makeup the following compounds? H2SO4 AlF3CaNa2 K2Br Title for Monday, 10-31-2011 Compound Formula lab

  3. Agenda:StarterCompound Formula LabExit

  4. P Practice • Students will first observe the substances in each test tube and record 2 observations for each.

  5. P Practice • Students will examine Compounds and Elements matching cards. • Students will try to match cards to the correct compounds to chemical formulas.

  6. P Practice • Draw the Compounds and Elements chart. • Once you have checked with teacher for accuracy fill out correct answers.

  7. Apply & Connect • What is a way for you to remember the difference between elements and compounds? • Make a list of the elements used to make the compounds we talked about today. • Why would scientists work so hard to find new compounds like honey and table salt? Exit • Write a half page reflection on what you learned today. • Be sure to include the following key words in your reflection • Elements • Compounds

  8. SStarter: Fill in the missing spaces below. Title for Tuesday, 11-1-2011 compound formula lab

  9. Agenda:StarterCompound NotesExit

  10. P Practice- copy the following vocabulary words in your journal. • A compound-is made from two or more elements that are chemically combined and can not be separated by physical means into other substances. A compound has different properties than the original elements that formed it. • A chemical formula -is a combination of chemical symbols showing the atoms of which a substance is made and their proportions. • A physical change -when substances undergo a change without changing into another substance. • A chemical change - when substances • undergo a change and become a new or • different substance.

  11. P Practice- copy the following vocabulary words in your journal. • A subscript is a number written just below the line that shows how many atoms of an element • are present in the formula. • A molecule is the smallest particle of a • compound that can exist on its own and • keep its properties. • A precipitateis a new substance produced as a result of a chemical change (solid).

  12. P Practice- copy the following words in your journal. • Compounds are formed when atoms of different elements are combined. • When the elements are combined their identities change. • Water is formed from hydrogen and oxygen. • Both elements are gases. • When combined they turn to a liquid. • Hence their identities change.

  13. P Practice- copy the following words in your journal. Analogy: • Think of elements as letters of the alphabet and compounds as words formed by combining the letters. • We can spell all of the English words with just 26 letters. • We can form millions of compounds with just 109 elements. • Ex: Sodium(Na) + Chlorine(CI) = Salt(NaCI)

  14. P Practice- copy the following notes in your journal. • What type of change occurs when forming compounds? • Chemical changes • Do the characteristics of an element change when combined with another? • Yes, the change occurs on a molecular level. • What happens when 2 or more elements combine and their properties change? • A compound is formed

  15. P Practice- copy the T-chart in your notebook. Elements Both Compounds

  16. P Practice- Write each of the following statements where they belong. Found in Earth’s atmosphere. Needed for humans to survive. Made from more than one element. Made of one pure substance. Can be broken down into simpler substances. Are pure substances. Make up substances we use everyday. Can be written using subscripts. Can be found on the Periodic Table.

  17. Apply & Connect • Give 2 examples of how to write a subscript correctly. • Explain why it is important for you to understand what compounds are. Exit • Write a half page reflection on what you learned today. • Be sure to include the following key words in your reflection • Elements • Compounds

  18. S Starter: Create a bar graph with the following information: Title for wednesday, 11-2-2011 compound notes

  19. Agenda:Starter Physical vs. Chemical Changes Quiz Exit

  20. P Practice- • Number your paper 1-10. • You will watch as the teacher performs difference changes and take notes on what is occurring. • You must make two observations for • each change. • You will then decide if each is a • physical or chemical change.

  21. Teacher Slide Sugar dissolving in water. Baking Soda into vinegar. Cutting a piece of paper up. Ice melting. Food Coloring into water. Oxygen into Carbon Dioxide. (Balloon) Glowstick Breaking. Lighting a candle. (Tealights) Crushing a plastic bottle. Oxidized Penny

  22. Apply & Connect • Give an example of an experiment you could conduct to demonstrate a physical reaction. • Describe an example of a chemical reaction that occurs in your life frequently. Exit • Write a half page reflection on what you learned today. • Be sure to include the following key words in your reflection • Compounds • Subscript

  23. Title for Thursday, 11-3-2011 Water Or Not Lab • S Starter: Write the question. How many TOTAL atoms are found in the following chemical formulas? NH3 H2SO4 Compare the formulas below. What makes them different? H2O  H2O2  C6H12O6  C12H22O11

  24. Agenda:StarterWater Or Not LabExit

  25. P Practice • Students will draw the lab setup in journaland write observations and predictions about what the lab could be demonstrating. • REMEMBER: Even though some liquids look similar, they can have very different properties. Please be careful with both substances, do not taste or touch either substance over the next two days.

  26. P Practice • I will explain what we are going to do in this upcoming lab. • It is your job to work with your group and create the problem, hypothesis, materials list, procedure, observations/data, results and conclusion for this lab. (Today you will stop at procedure.) • Be specific in your instructions. (Pretend someone has never done a lab before.) • Be sure to include safety procedures. • Use complete sentences and thoughts. • Start at the very beginning and work to the end.

  27. P Practice *HINT* PLEASE WRITE IN JOURNAL. • Hydrogen peroxide is used as an antiseptic to wash cuts. One characteristic of hydrogen peroxide is that it will produce bubbles when applied to a wound. Water will not. The formation of bubbles is one sign that a chemical reaction has taken place.

  28. Apply & Connect • What is the difference between water and hydrogen peroxide on an atomic level? • Why would we do a lab with two substances that look exactly the same? What does this teach us? Exit • Write a half page reflection on what you learned today. • Be sure to include the following key words in your reflection • Elements • Compounds • Water • Hydrogen Peroxide

  29. Title for Friday, 11-4-2011 Water Or Not Lab S Starter: • Draw a picture of an element used in school everyday. • Draw a picture of a compound used in the cafeteria.

  30. Agenda:StarterFinish Water Or Not LabExit

  31. P Practice • Students will refer to lab write up from Thursday. • We will finish with putting the potato slices into the clear substances today and completing our lab write up. • We will need to complete observation/data, results and conclusion.

  32. Apply & Connect • Why do we need to be specific with lab procedures? • What reaction led us to believe a chemical reaction was occurring today? • Explain a situation in which hydrogen peroxide could be helpful to your family. Exit • Write a half page reflection on what you learned today. • Be sure to include the following key words in your reflection • Elements • Compounds • Mixture • Periodic Table

  33. Materials • Test tubes/rack • Table salt • Chalk • Sand • Honey • Balloon • Hydrogen Peroxide • Potatoes • Paper Towels • Beakers

More Related