First Semester 6 th Grade Exam Review

Transcription

1 Name: Perid First Semester 6 th Grade Exam Review Exam Schedule: Tuesday, Dec. 18 th -4 th Perid Wednesday, Dec 19 th - 2 nd & 7 th Perids Thursday, Dec. 20 th - 3 rd and 6 th Perids Friday, Dec. 21 th -1 st and 5 th Perids Test will be multiple chice/matching cvering tpics studied during the first semester. Study Pwer Pints and review games can be fund in the dcuments sectin n the CRJH 6 th grade science web page. Students shuld review previus review sheets/tests fr study. Past tests/review sheets can be lcated in student s yellw binder in the returned test sectin r nline in ur Dcuments sectin. Review lab safety rules and equipment Scientific Methd Measure length using metric measurement (cm,mm) Reading a graduated cylinder (ml) and triple beam balance (g) Variables: Independent (change), Dependent (measure), and Cnstant (same) The difference between mass and weight Reading Graphs and Charts Define vlume The frmula fr vlume: V=LxWxH Tw ways t find vlume: LxWxH and displacement (finding vlume f an irregular shaped bject) The density f water=1g/cm3 (Sink r Flat) Calculate density using frmula D=Mass/vlume Read graphs/charts Identify prperties f Metals, Metallids, and Nn-metals Define element The peridic table- lcate element s name and symbl (first letter always capitalized) Identify elements in a chemical frmula Understand the difference between an element and a cmpund Identify chemical and physical prperties Identify chemical and physical changes Ptential and Kinetic Energy: Definitins and identify examples Energy transfrmatins example: a flashlight = chemical electrical radiant In every energy cnversin, sme energy is always cnverted int thermal energy The Law f Cnservatin f Energy Kinetic energy depends n speed and mass Define and identify examples f Cnvectin, Cnductin, and Radiatin Energy Resurces: Gethermal, Slar, Hydrpwer, Cal, Wind, Petrleum, Natural Gas, Bimass, and Nuclear

2 Lab Safety & Equipment: 1. The apprpriate technique t smell anything in the lab is wafting. Explain the technique f wafting: 2. Identify 5 lab rules that must be fllwed in the experimental prcedure belw: The students were trying t determine if a chemical reactin had taken place. 1. Measure 20 ml f H 2 O int graduated cylinder. 2. Find and recrd the initial temperature f the water in C by placing the bag with H 2 O n the bulb f the thermmeter. 4. Seal plastic bag cntaining the H 2 O, leaving a small pening t place the sdium bicarbnate. 3. Measure and pur 2 teaspns f sdium bicarbnate (NaHCO 3 ) int plastic bag and seal quickly. 4. Set plastic bag n thermmeter and recrd temperature in C every minute fr 5 minutes n the data table listed belw. 6. When the 5 minutes have passed, repeat this prcedure with 2 teaspnfuls f calcium chlride (CaCl 2 ) and 20 ml f H 2 O. 7. Cmplete steps 1-4 using 1 teaspn f sdium bicarbnate (NaHCO 3 ) and 1 teaspn f calcium chlride (CaCl 2 ).. * Identify the variables in the experiment abve: Independent: Dependent: Cnstant: Identify equipment name/measure the fllwing belw: Name Measures: Unit: Distance: Name: Unit: Measurement: Measurement: Name: Unit: Measures: Measurement: Explain the technique t prperly read this piece f equipment:

3 Density: The frmula fr calculating density: Name the lab equipment tls needed fr making measurements that are needed t calculate the density f an irregularly shaped bject? Water has a density f. If a 36 g chunk f metal has a vlume f 4cm 3, what is its density? What are yu determining when yu calculate the vlume f an bject? Calculate the vlume f the fllwing cubes: Label yur answers An irregularly shaped stne was drpped int a graduated cylinder that had 6 ml f water in it. The water rse t 12mL. If the mass f the stne was 24g, what was the stne s density? Shw yur wrk! A student finds a 600 gram bject that has a vlume f 200 cm 3. Calculate the density and identify if the bject will sink r flat. Shw yur wrk! The diagram fllwing diagram shws a beaker cntaining different liquids, list the rder f the liquids frm least t mst dense: water Define: Element: Cmpund:

4 Classify the fllwing in the chart belw: Al H 2 O Fe C NH NaSO 4 CO 2 Na Element Cmpund What is the name f the tl pictured? What is the imprtant rule t remember when writing a symbl fr an element? Cmplete the chart: Using map pencils clr the fllwing: Metals- Red Nn-metals- Blue Metallids-Purple *N luster *Brittle *Fund alng the stair-step line *Nt a gd cnductr *Shiny Luster *Can be shiny r dull *Malleable *Gd Cnductr *Brittle Metals Metallids Nnmetals What infrmatin can be learned frm the fllwing chemical frmulas: C 6 H 12 O 6 NaCl List the 4 main indicatrs f a chemical change:

5 Cmplete the chart belw: Chemical Prperty Water Physical Prperty Silver Paper Salt Define: Energy: Ptential Energy: Kinetic Energy: Label the energy transfrmatins in the fllwing pictures as ptential r kinetic: ************************************************************************************ Energy Transfrmatins: Identify the energy transfrmatins pictured belw (hint: ) In every energy cnversin, sme energy is always cnverted int.

6 Give 3 Examples f Fssil Fuels: What are the disadvantages f using cal t prduce electricity? Hw are fssil fuels frmed? Advantages: Disadvantages: Describe the energy transfrmatin that is taking place in the hydrpwer diagram. Advantages: Disadvantages: Hw much ttal energy used in the U.S. came frm fssil fuels? Accrding t the graph, what percent f energy cnsumed in the United States in 2011 caused smg pllutin? Which renewable energy surce was cnsumed in the least amunt? Why? What type f energy resurce is pictured?

7 Describe the energy transfrmatin that is taking place t prduce electricity? Advantages: Disadvantages: Which energy resurce wuld be the mst reliable if yu lived n an island were weather changes ften and is hard t predict? Define: Cnvectin: Cnductin: Radiatin: List RadiantTypes (GUVIMR): _G and _X ; U ; I ; M ; and _R.