the mass and volume can be determined, then the substance can be found by comparing with substances of known densities. Bonus question: Density of water is 1 g/ml or 1.0 g/cm3). What is the volume of a sample of water if the mass is 6g? Explain why this is so easy to figure out (think ratio). The density of water is a 1:1 ratio 6 would mean 6 mL Evaluate If two blocks of pine were stacked on top of each other, would they sink or float? Explain: The blocks would float. The wood is still less dense than water. For example, if the mass doubles, so does the volume, keeping the density the same. Note: Use real examples for students to measure and test. Student DENSITY OF BLOCKS ACTIVITY Florida Next Generation Sunshine State Standards Benchmark(s): SC.8.N.1.1 Define a problem from the eighth grade curriculum using appropriate reference materials to support scientific understanding, plan and carry out scientific investigations of various types, such as systematic observations or experiments, identify variables, collect and organize data, interpret data in charts, tables, and graphics, analyze information, make predictions, and defend conclusions. (AA) SC.8.P.8.3 Explore and describe the densities of various materials through measurement of their masses – and volumes. Assessed as SC.8.P.8.4 Classify and compare substances on the basis of characteristic – physical properties that can be demonstrated or measured; for example, density, thermal or electrical conductivity, solubility, magnetic properties, melting and boiling points, and know that these properties are independent of the amount of the sample. Purpose In this activity, you will measure the mass, volume, and the length of several blocks. Then, use your data to explore the relationship between the mass and volume of the rocks and calculate their density. Material Densities of Common Substances Source: Teacher Developed Classroom Tested – Substance Density (g/cm3)
the mass and volume can be determined, then the substance can be found by comparing with substances of known densities. Bonus question: Density of water is 1 g/ml or 1.0 g/cm3). What is the volume of a sample of water if the mass is 6g? Explain why this is so easy to figure out (think ratio). The density of water is a 1:1 ratio 6 would mean 6 mL Evaluate If two blocks of pine were stacked on top of each other, would they sink or float? Explain: The blocks would float. The wood is still less dense than water. For example, if the mass doubles, so does the volume, keeping the density the same. Note: Use real examples for students to measure and test. Student DENSITY OF BLOCKS ACTIVITY Florida Next Generation Sunshine State Standards Benchmark(s): SC.8.N.1.1 Define a problem from the eighth grade curriculum using appropriate reference materials to support scientific understanding, plan and carry out scientific investigations of various types, such as systematic observations or experiments, identify variables, collect and organize data, interpret data in charts, tables, and graphics, analyze information, make predictions, and defend conclusions. (AA) SC.8.P.8.3 – Explore and describe the densities of various materials through measurement of their masses and volumes. Assessed as SC.8.P.8.4 – Classify and compare substances on the basis of characteristic physical properties that can be demonstrated or measured; for example, density, thermal or electrical conductivity, solubility, magnetic properties, melting and boiling points, and know that these properties are independent of the amount of the sample. Purpose In this activity, you will measure the mass, volume, and the length of several blocks. Then, use your data to explore the relationship between the mass and volume of the rocks and calculate their density. Material Densities of Common Substances Source: Teacher Developed – Classroom Tested Substance Density (g/cm3)