Wednesday, March 23, 2016 Wednesday, March 23, 2016 Homework is written in Blue. Complete the Warm-up by Yourself Always Write in Complete Sentences • • • • Read Page 46 What is volume? What tool is used to measure the volume of a liquid? How many milliliters are in 1 cubic centimeter? How are milliliters related to cubic centimeters? You have 5 minutes. •3rd period •Grading your science fair journal – •Mix-It-Up at Lunch Name: Title of Science Fair Experiment Outline for Science Fair Project A. Topic Due Date: November 6, 2009 B. What Can Be Measured About the Topic (Quantitative)? Due Date: November 6, 2009 C. Scientific Question – How does _______ affect _______? Due Date: November 10, 2009 D. Independent (Manipulative) Variable Due Date: November 11, 2009 1. 2. 3. 4. 5. E. Dependent (Responding) Variable Due Date: November 11, 2009 F. Hypothesis – If…, then…because… Due Date: November 12, 2009 Period: Name: Title of Science Fair Experiment Period: Outline for Science Fair Project A. Topic Due Date: November 6, 2009 Trebuchet Catapult B. What Can Be Measured About the Topic (Quantitative)? Due Date: November 6, 2009 The distance a trebuchet can launch a golf ball. C. Scientific Question – How does _______ affect _______? Due Date: November 10, 2009 How does the mass of the counterweight affect the distance a trebuchet can launch a projectile? D. Independent (Manipulative) Variable Due Date: November 11, 2009 The mass of the counterweight 1. 2. Due Date: November 6, 2009 The distance a trebuchet can launch a golf ball. C. Scientific Question – How does _______ affect _______? Due Date: November 10, 2009 How does the mass of the counterweight affect the distance a trebuchet can launch a projectile? D. Independent (Manipulative) Variable Due Date: November 11, 2009 The mass of the counterweight 1. 2.5 lbs = 5.5 kilograms 1. 2. 2. 5.0 lbs = 11 kilograms 3. 3. 7.5 lbs = 16.5 kilograms 4. 5. 4. 10 lbs = 22 kilograms 5. 12.5 lbs= 27.5 kilograms E. Dependent (Responding) Variable Due Date: November 11, 2009 The distance a trebuchet can launch a projectile D. Independent (Manipulative) Variable Due Date: November 11, 2009 The mass of the counterweight 1. 2.5 lbs = 5.5 kilograms 1. 2. 2. 5.0 lbs = 11 kilograms 3. 3. 7.5 lbs = 16.5 kilograms 4. 5. 4. 10 lbs = 22 kilograms 5. 12.5 lbs= 27.5 kilograms E. Dependent (Responding) Variable Due Date: November 11, 2009 The distance a trebuchet can launch a projectile F. Hypothesis – If…, then…because… Due Date: November 12, 2009 If _______________________________, then ___ _________________________________________ _____, because _____________________________ _________________. If the ________________________, I.V. (increases or decreases) then the D.V. will (increase or decreases) ____________________________, information because research _________________. If ____________________________, mass of the counterweight is greater then __________________________ the distance the trebuchet will ________________________, launch a projectile will be furtherbecause ______________________________. D. Independent (Manipulative) Variable Due Date: November 11, 2009 The mass of the counterweight 1. 2.5 lbs = 5.5 kilograms 1. 2. 2. 5.0 lbs = 11 kilograms 3. 3. 7.5 lbs = 16.5 kilograms 4. 5. 4. 10 lbs = 22 kilograms 5. 12.5 lbs= 27.5 kilograms E. Dependent (Responding) Variable Due Date: November 11, 2009 The distance a trebuchet can launch a projectile F. Hypothesis – If…, then…because… Due Date: November 12, 2009 then the ___ If _______________________________, the mass of the counterweight is greater, then _________________________________________ distance the trebuchet will launch a projectile will be _____, because further, because_____________________________ the counterweight will create more _________________. force on the sling arm. Tool: Dual Pan Balance Parts:Pans, riders, beams, adjustment knob, base, pointer Measuring: The unit of measurement is grams. A gram is a very small measurement. People usually use kilograms (1000 grams). Block of wood - ______ grams Someone’s science log – Someone’s agenda – Someone’s pencil – Test Tube Corked Ball – Rock – Tape Measure – Stopper – Marble – 2 ways of measuring volume: Length X Width X Height – tool? Measure in centimeters 9cm X 9cm X 3.5cm = The Block of wood’s volume is 283.5cm3 Water Displacement – tool? How much does the water rise? Graduated cylinders measure milliters(ml) 1ml of water = 1cm3, so….. 35ml=35cm3 & 158ml=158cm3 & 3145ml=3145cm3 Write at least 8 procedures on how you figured out the volume of 12 oz. can of soda. Volume of Objects that are larger 1.Obtain all materials 2. 3. 4. 5. Write at least 8 procedures on how you figured out the volume of 12 oz. can of soda. 1.Measuring Matter – Volume 2.Writing Procedures for Science Fair. Volume of Objects that are larger 1.Obtain all materials 2. 3. 4. 5. 1.What is the volume of the soda? Not all objects can fit into a graduated cylinder Supplies: Towel Tape 2-Liter bottle with top cut off, filled ½ way with water. Large Beaker with 600ml of water Tools: Math, Calculator Measuring: How much matter is inside of something.Density affects float or sink. Measuring density: Mass(g) or ÷ Volume(cm )= Density(g/cm ) 3 3 Density(g/cm3) Volume(cm3) Mass(g) or Mass = Volume Volume Mass(g) Volume(cm3)=Density(g/cm3) / 1. What is the volume of a book with the following dimensions? Length = 12 cm, Width = 3 cm and Height = 20 cm 2. What is the density of the book in question #1, if its mass is 175 g? 3. What is the volume of a steel bar with the following dimensions? Length = 5 cm, Width = 2 cm Height = 30 cm 4. What is the density of a steel bar if its mass is 2.5 kg? (Hint: convert to grams first.) 5. A cork ball has a volume of 5.0 cm3 and a mass of 120 grams. What is the density of the ball? 6. Water has a density of 1 g/cm3. If you placed the cork ball and the steel bar in water, which would float and which would sink? 7. Explain your answer to question #6 using your knowledge of density. 1. Object 1 block 2 blocks 3 blocks 4 blocks 5 blocks 6 blocks 7 blocks 8 blocks Mass (g) Volume (cm3) Density (g/cm3) Supplies: Calculator - Guitar Dual Pan Balance – Mickey Mouse Density Blocks – Wayne’s World Poster Object 1 block 2 blocks 3 blocks 4 blocks 5 blocks 6 blocks 7 blocks 8 blocks Mass (g) Volume (cm3) Density (g/cm3) 1. How much did the mass change for each additional block? 2. How much did the volume change for each additional block? 3. How much did the density change for each additional block? 4. What would be the mass, volume and density of 12 blocks? 5. How is density a property of matter, but not mass or volume? 6. How does density help identify a substance? 1. What is the volume of a book with the following dimensions? Length = 12 cm, Width = 3 cm and Height = 20 cm 2. What is the density of the book if its mass is 175 grams. 3. What is the volume of a steel bar with the following dimensions? Length = 5 cm, Width = 2 cm Height = 30 cm 4. What is the density of a steel bar if its mass is 2.5 kg? (Hint: convert to grams first.) 5. A baseball has a volume of 5.0 cm3 and a mass of 120 grams. What is the density of the ball? 6. Water has a density of 1 g/cm3. If you placed the baseball and the steel bar in water, what would happen to each? 7. Explain your answer to question #6 using your knowledge of density.