Sorting Recyclables Lesson 1, Activity 2 Mass, Volume, Density Worksheet 2 Name____________________________ Date_______________Bell___________ Relationship between Mass and Volume of a Metal. 1. Fill in the data chart below with the mass and volume of each sample of your metal. Be sure to measure the mass first if the water displacement is used to determine the volume. 2. Metal____________________________ (X) Volume (ml) (Y) Mass (g) Plot your data on the graph to the right, draw a trend line and determine the slope of your graph. Slope = (y2-y1) = (Mass2-Mass1) (x2-x1) = (Vol2 – Vol 1) Describe the meaning of your slope in a sentence: What property does your slope represent? Practice 1 Adapted from ©Modeling Workshop Project 2003 Given this graph of experimental mass vs. volume data, answer questions 1-4. 1. Discuss the physical meaning of the slope of the lines on this graph. 2. Why do the data for metal 1 produce a graph with a different slope from the graph representing metal 2? 3. What is the physical meaning of the vertical intercept of this graph? 4. Use a reference source such as the Internet or a textbook to find what elements the metals tested could be. Explain your answers. 5. Suppose you have two materials with different densities. In the boxes below, draw a diagram of the atomic structures that could account for the difference in the densities of the two materials. 2 Adapted from ©Modeling Workshop Project 2003 Less Dense More Dense Given the following mass vs. volume graph, answer questions 6 and 7 6. What is the density of this material? 7.What would be the volume of a 200. g sample of this material? 3 Adapted from ©Modeling Workshop Project 2003 Sorting Recyclables Lesson 1, Activity 2 Mass, Volume, Density Formative Assessment Name____________________________ Date_______________Bell___________ Unit 2.2 Quiz 1- Density of Solids A student graphed the following data: 1. Based on this graph, how does material 1 differ from material 2? 2. What is the density of material 1? Show all your work and include appropriate units. 3. What is the mass 10.0 cm3 of material 1? Find this in two different ways. a. Mark on the above graph how you might determine this. b. Show your work on how you might also calculate this mathematically. 4 Adapted from ©Modeling Workshop Project 2003