1 / 38

Investigation 1

Investigation 1. Date : 4/30 Lt: I can identify physical and chemical properties. Sponge: When you hear the word chemistry, what do you think it means?. To do…. Check HW New notebooks! Tuck your folders in the bottom of your locker to collect dust!

lowri
Download Presentation

Investigation 1

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. Investigation 1 • Date: 4/30 • Lt: I can identify physical and chemical properties. • Sponge: When you hear the word chemistry, what do you think it means?

  2. To do… • Check HW • New notebooks! • Tuck your folders in the bottom of your locker to collect dust! • Put your FIRST and LAST NAME, as well as your SECTION number on your spiral.

  3. Introducing the chemistry course… • For the next several weeks, we will be investigating the properties and composition of a few of the MILLIONS of different substances in the world. The study of substances and their interactions is chemistry. When you walk through that door, you will be entering your chemistry lab and you will be a CHEMIST!

  4. Introducing the chemistry course… • Safety in the lab… • http://www.youtube.com/watch?v=tsAHt0FiwNM • Eyewear • Tasting materials and food in the lab • Safely transporting materials

  5. Mystery Mixture • I was given this container of white powder, but I wasn’t told what it is – only that it is a safe mixture of 2 substances. I’d like to know what the two substances are.. How do you think we could find out what substances are in this mixture? I have a container of it for each of you! DON’T REMOVE THE LID! • Discuss this with your group, record your observations under Part 1 on NB 35.

  6. Mystery Mixture • Notebook page 35, Part 1

  7. Mystery Mixture Many of you asked what would happen if we added water. You will need the following… • White cup of mystery substance • White cup of water • One pipette Follow the directions on page 35 and record your observations in Part B!

  8. Mystery Mixture • Notebook page 35, Part 2

  9. Mystery Mixture • Discuss the following… • What happened when you added one pipette of water to the mixture? • What happened when you added a second pipette of water? • Did it fizz and bubble every time you added a new pipette of water? • What causes the bubbling and fizzing? • Why does the mixture stop fizzing after 5 pipettes have been added?

  10. Indicators of a chemical change

  11. Physical and Chemical Properties • Write the following in your vocabulary index at the back! • Physical Properties: properties that do NOT change the chemical makeup of substances • Chemical Properties: properties that DO change the chemical makeup of substances • Substance: a form of matter that is different from every other form of matter

  12. Physical and Chemical Properties • Pull out the blue cards. Leave the pink ones in the bag! • Pull out the “Physical Properties” and “Chemical Properties” cards first. • Sort the remaining blue cards in the two piles. • Sort the remaining pink piles in to the two piles. These are examples of each!

  13. Copy the t-chart below your sponge!

  14. Investigation 1 • Date: 5/1 • Lt: I can identify physical and chemical properties. • Sponge: When you hear the word chemistry, what do you think it means?

  15. To do…

  16. Mystery Mixture • Remind me, what do we know about the mystery mixture? • Look at all of these 9 substances. A substance is a form of matter. There are millions of different substances on Earth. Each substance is different from every other substance. Each vial has a different pure substance – no mixtures! • Two of these are in the mystery mixture. I don’t know which two! Your challenge is to figure out which two of these substances make up the mystery mixtures. Each group will observe one different substance and share their observations with the class.

  17. Mystery Mixture • DO NOT OPEN THE VIALS. Pass your vial around so each person can see the label. • The label contains 3 items… • Chemical name • (common name) • Chemical formula

  18. Mystery Mixture • Notebook page 37 – you will do your substance and then share your observations with the class!

  19. Chemical name • (common name) • Chemical formula

  20. Mystery Mixture • So now what… • Do you have an idea about which two substances are in the mystery mixture? • What could you do to get more information? • What if I also gave you water? • Lets make you a plan!

  21. Mystery Mixture • Notebook page 39 • For the results, record “yes” if it fizzed, “No” if it doesn’t. • Once we start testing, you must wear goggles! Only one vial can be opened at a time.

  22. Mystery Mixture • Notebook page 39

  23. Mystery Mixture • Which two substances do you think make up the mystery mixture? • What evidence do you have to support your conclusion? • What is “fizzing”? Where did that gas come from? • Which combinations resulted in fizzing? • Lets do more testing tomorrow with those combinations! • What else could indicate a reaction?

  24. Lesson 1 • Date: 5/5 • LT: I can identify physical and chemical properties. • Sponge: Copy only the properties that are PHYSCIAL properties. • Oxidation state, Odor, mass, boiling point, reactivity, Color, Hardness

  25. To do… • Agenda

  26. Mystery Mixture • NB page 41 • The list includes all the combinations that you discovered fizzed yesterday. • Today we are going to retest those combinations. • You must wear goggles! • Do the test in the correct numbered well!

  27. Mystery Mixture • What happened to all that gas you created in your experiments? • What is left in the well trays? • How could we get rid of the liquid in the well trays? • Star the wells on the chart that you think are the mystery mixture!

  28. Investigation 1 • Date: 5/6 • LT: I can identify physical and chemical properties • Sponge: Give one example of a physical property and a chemical property.

  29. To do… • Check HW

  30. Diagnostic • Diagnostic Pretest – do the best that you can! • You may refer to the periodic table on page 90 to 91 in your green book.

  31. Mystery Mixture • Observe the residues left, but DO NOT TOUCH! Record the results in the “Other Observations” on page 41. • Compare the residues, which one is most similar to the mystery mixture? • Lets summarize all of our findings!

  32. Journal Check • I want to check that you have been maintaining your journal! Answer the following questions using your journal… • 1. What two substances are in the mystery mixture? • 2. Did the mystery mixture fizz? Answer yes or no. • 3. What color was left after the water evaporated from the mystery mixture? • 4. What is the chemical name of baking soda? • 5. What is the common name of calcium carbonate?

  33. If time… • What would life be like without chemistry? • http://www.youtube.com/watch?v=AbfW_CMMe48 • What is a chemical reaction? • http://www.youtube.com/watch?v=66kuhJkQCVM • Record in your index • Chemical reaction: the change that occurs when substances are mixed and new substances form

  34. Cool Steve Spangler Chemistry • http://www.youtube.com/watch?v=XVLCQYBQPQY • http://www.youtube.com/watch?v=nsayFUSwKfs • http://www.youtube.com/watch?v=2qlb8X_ffO8 • http://www.youtube.com/watch?v=2olwZDsDwtI • http://www.youtube.com/watch?v=JsnjvFy7aw8 • http://www.youtube.com/watch?v=no_uy63eg4Y • http://www.youtube.com/watch?v=fqCdIbVmaqM • http://www.youtube.com/watch?v=de98LyCRWrg

More Related