Why do we have the scientific method? TURN IN SYLLABUS & “GETTING TO KNOW YOU”!!! What are the steps to the scientific method? 1. Design a short experiment. Just describe the independent, dependent, and control variables. 1. What was your hypothesis for the Drops on a Penny lab? Put it in a complete sentence! 1. Why is an abstract important. 2. What information should you include in an abstract? 3. What are the 5 parts of a lab report? TURN IN YOUR HOMEWORK!!! 1. What information should you include in an introduction to a lab report? 2. What was the purpose for our penny lab experiment? PUT EVERYTHING AWAY EXCEPT A PENCIL & ERASER HAVE A BOOK OR SOME TYPE OF WORK TO DO UNDER YOUR CHAIR GET A YELLOW FOLDER GOOD LUCK! TURN IN SCIENCE STARTERS FROM THE LAST 3 WEEKS! 1. For the drops on a penny lab, what information should you include in each section of the lab report? 1. Put everything away except for a pen/pencil 2. If you already took the quiz, take out a book or homework to work on. 1. Why do we have the periodic table? 1. Who organized the periodic table? 2. How is the periodic table organized? 1. Think back to our conversations on matter, what is matter? 2. How is matter characterized? 1. Explain the following statement: All compounds are molecules but not all molecules are compounds. 2. How are heterogeneous mixtures different from homogeneous mixtures? 1. Why does energy matter when we are talking about matter? 1. If you change an ice cube to liquid water, are you adding heat or taking away heat? 2. Is this endothermic or exothermic? 3. Put everything away except for a pencil or pen!!! 1. What is the difference between vaporization and condensation? 2. unscramble the following terms and give their definitions: ◦ ◦ ◦ ◦ ◦ ◦ A. eezfre B. dilso C. ags D. tlem E. maitobsunli F. Qiludi Write at least 5 sentences describing the three different states of matter that we have discussed. ◦ Include what the molecules of each look like. What are the three different types of measurements for gases? Describe the relationship between temperature & volume (Charles’s Law) Choose either Charles’s Law or Boyle’s Law. Describe the law and draw a graph representing what the law looks like. 1. We should all know what matter is, but what are the two main branches of matter? (hint: think back to the flowchart on matter) 2. What is the difference between a pure substance and a mixture? 3. Which of the following molecules are also compounds? ◦ A. NaCl ◦ B. O2 ◦ C. C6H12O6 Clear off your desk. Have your science starters under your desk Once you have finished the quiz, answer the science starter for today (not shown yet!) Get out your review and have it open to the page with the example short answer questions. I will come by and check it off. If you do not have it out by the time I get to you, you will lose points!!! Get out your periodic table & notes. Sit quietly!!! 1. Find the number of protons, electrons, & neutrons in a single atom of the following elements: ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ C Xe Ba Rb Mo Mn Co Ni Pt K 1. Find the number of protons, electrons, & neutrons for the following elements: ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ ◦ Cd Cr Ti Hf Os W Pd Li He O N F Ar Na Ne 1. Find the number of protons, neutrons & electrons for the following: Cl F Fr Rn 2. Which of the metals are the most reactive? 3. Which of the nonmetals do not like to react at all? 1. List the Earth names for the elements 2. Why could you place some elements with just one clue while other elements you needed more than one clue? 3. Why could you use clues about atomic mass to place elements even though the table is now based on atomic numbers? 1. What are some properties of metals? 2. What are some properties of nonmetals? 3. What are noble gases & where are they on the periodic table? 1. Match the following words with their definitions: Metal Nonmetal Alkali metal Alkaline earth metal Noble gases Metalloids (semi metals) DEFINITIONS: a. Good conductors of electricity & heat, shiny b. Do no like to react with anything c. Have some qualities of metals and some qualities of nonmetals d. The most reactive of the metals e. More reactive than transition metals but less reactive than alkali metals f. Poor conductors of heat & electricity, brittle, dull