Dry Ice Floating Bubble & Old Mendeleev Halloween Lab!

Bell Work 10/31/14

Word Wall Quiz 10/31/14 1.___a mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas. 2. ___ in a solution, the substance in which the solute dissolves. 3. ___in a solution, the substance that dissolves in the solvent 4. ___a homogeneous mixture of two or more substances uniformly dispersed throughout a single phase. 5. ___combination of two or more substances that are not chemically combined. a. Solution b. Mixture c. Solvent d. Solute e. Suspension

Word Wall Quiz 10/31/14 1._e_ a mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas. 2. c__ in a solution, the substance in which the solute dissolves. 3. _d_ in a solution, the substance that dissolves in the solvent 4. _a_ a homogeneous mixture of two or more substances uniformly dispersed throughout a single phase. 5. b_ combination of two or more substances that are not chemically combined. a. Solution b. Mixture c. Solvent d. Solute e. Suspension

Drawing an Atom Answers

Student Learning Objectives: SPI 9.1 Recognize that all matter consists of atoms SPI Use the periodic table to determine the properties of an element. TOC: # 51. Disappearing Ice Demonstration # 52. Dry Ice Floating Bubble

51. Disappearing Ice Demonstration! Place two paper plates on table One plate holds dry ice One plate holds liquid ice Write your prediction on your paper and justify. At the end of class, let’s see what happened.

52. Dry Ice Floating Bubble Demonstration Materials: Gloves, dish soap, water, a small cup, a large bowl, a bubble wand, glow sticks, and DRY ICE! Steps: 1.Add some dish soap to small cup 2.Add water to cup & mix 3. Add some water to a bowl 4. Use gloves and add DRY ICE to the bowl 5. Add glow stick 6. Blow bubble into bowl Write your prediction on your page. Be ready to share! WATCH and SEE what happens!

Dry Ice Floating Bubble In your SNB, write your conclusion for the dry ice experiment. Be detailed with your answer. What connections can you make with this experiment with what we have learned? Watch another cool dry ice experiment!

Dry Ice Connection! Dry ice is Carbon Dioxide (Co2) in it’s solid form. At temperatures above -69F dry ice changes from a solid to a gas without ever being a liquid. The process of sublimation. When dry ice is put into water, it accelerates the process, creating clouds of fog. *What could be some everyday uses of dry ice?

Old Mendeleev Activity At your lab tables, you will have a deck of cards. Total of 47 cards 23 with element names, 23 with element symbols, 1 Old Mendeleev card. The dealer shuffles the deck and deals out cards Some players may have one more card When you have a pair (2) that matches, place it face up on table (like Old Maid) Pick up a card from deck, if you have a pair place it on table. If not, keep the card. Play moves clockwise!

Disappearing Ice! In your SNB, write what actually happened with the dry ice. Compare what happened with what your predictions were.

EXIT TICKET How do you determine the number of protons? neutrons? and electrons? Compare and contrast the atomic number and mass number.