20 Rating cocoas 10/ See teacher for data or copy from someone in your group Analysis of cocoa 10/4 21 What made test unfair? Bias: influence in an unfair way. How could bian have influenced that outcome of cocoa taste test? Averages stamped 10/ Graded 10/4
First Things 2 Thurs 10/6 1. All matter is made of... 2. The phases of matter are... Mon 10/10 Use squeezing lab sheet The state of matter that can be into a smaller volume is. Tues 10/11 Use pg. 54 1. In solids, every atom (molecule) is to its neighboring molecule. 2. In liquids, atoms have energy to ir with ir neighbors.
24 Squeezing Mr. Needhamʼs web page: http://www.nhusd.k12.ca.us/o/chavez/needham/mr.n.html Data Analysis 25 Problem: How close toger are in states of Graph: How much y got squeezed Stamped 10/7 p 5-7 matter. 50 40 cm 0 cm 20 cm 10 cm cm0 cm 0 1 2 4 Number of books Stamped 10/10 Data Pressure (number of books) 0 Gas Vol (cm ) 50 Liquid Vol (cm ) Solid Vol (cm ) Before After Liquid Solid Gas Directions: Draw pictures of syringes and in m draw (as little circles) to show how close toger y are according to your results. 1 2 45 40 5 1. The gas (could or could not) be compressed more... 1. The liquid (could or could not) be compressed more... 4 0 1. The solid (could or could not) be compressed more...
26 Properties vs. Molecules 10/10 SOLIDS pg. 54, 10 Properties: Shape vs. Volume: Name pg. 27 SOLIDS LIQUIDS GASES 27 Molecules Stamped 10/11, 10/12 per 2 1x for pictures, 2 on left for Liq, Gas, 1 on right for properties LIQUIDS pg. 54, 94 Properties Solids keep ir shape Liquids ir shape Gases ir shape Molecules Properties Corrected in class 10/1, not per GAS pg. 54, 94 Molecules Properties Solids (do/do not) ir volume Liquids (do/do not) ir volume Gasess (do/do not) ir volume
28 A heated discussion 10/12-1 Get key and worksheet from teacher Eureka Video Questions (prog. 16-19) 1. How do "little lumps" move in solids? 2. What is scientific term for little lumps?. What happens to in a solid as it melts to a liquid? a. (as solid gets warmer): b. (as it melts): c. (when it is a liquid): 4. What happens to when liquids cool down and solidify (freeze)? a. (as liquid gets colder): b. (as it solidifies or freezes): c. (when it is a solid) d. Why do se things happen? 5. What is evaporation? Change from a to a. What happens to? 6. What is condensation? Change from a to a. What happens to? Turn page sideways and set up like Dance of Solid Melting Liquid Evaporation Gas Boiling Vibrating in place, space to write words NB PG. 29 DANCE OF THE MOLECULES. DRAW AND LABEL : Moving Freely (2 places) Vibrating in place Breaking forces of attraction Fixed positions Lattice pattern Completely breaking away Low energy High energy Draw arrows to show movement of.
0 Oobleck No makeup if absent. 1 Worksheet: Changes of state Stamped Mon 10/17 Corrected Wed 10/19
2 10/17-18 Molecules in s of state 10/19 Boiling: prediction of shape of graph of boiling water starting with hot tap water. 110 Temp Water only 40 Skip 1 If a liquid is heated and 1. The temperature goes up, are COPY FROM TEXTBOOK PG. 97 2. The temperature doesn t go up liquid is Includes 2 stamps + 2 stamps for whiteboarding 10/1 Label above graph with following terms (see example): Ice & water, water only, Intermoleicular forces breaking, Molec. speeding up, Molec. breaking out of lattice, lattice, molec moving freely
Pg 4 First Things 5 States of matter review Due Monday Wed 10/19 Per 1 only Two things that heat (rmal energy) can do to are 1. 2. 0/19 Video questions Why does a balloon.. Expand when heated.. 2. Contract when cooled.. OK to do on binder paper: Textbook page 11-115 Vocab Pg 11: 1, 2, 4, 5, 8 Answer in complete sentences. Concepts 1, 8, 10, 20 Problems: #. Water: Freezing point: C Boiling point: 4. Room Temp Normal body temp: Thur Oct 20
Pg 6 STEEL VS. ICE Which will cool a warm soda best, Steel cubes or ice cubes Label: solid heating up liquid heating up Tell what are melting. doing in each part 6 Results : Get graph from Mr. Needham Temp Time Hyposis: I think will cool soda faster.. When it is added to warm soda, What will happen to ice? What will happen to steel? Draw graph for steel (dotted line) and ice being heated (solid line) 20 0 Temp Summary: Equal amounts of room temperature (2 C) soda are poured into 2 glasses. Blocks of -15 steel is added to one. Blocks of -15 ice are added to or. -20 Time