Density Lab A Virtual Interactive Lab Name Date hour For this lab you will be accessing the virtual density laboratory under Chemical Change links at my blog site: iblog.dearbornschools.org/bates 1. Write the formula for density: Read the information at the iblog site to find out the formula for density. Begin with the brick. 2. List the volume of a 10.00kg brick sample: L 3. Input the mass and volume values into the formula and calculate the density of the brick: Now change the mass of the brick sample to 2.00kg. 4. How does this affect the volume of the brick sample? 5. Input the new mass and volume values into the formula and calculate the density of the brick:
6. How does this affect the density of the brick sample? Now change the substance to Styrofoam and set the mass to 2.00kg. 7. What is the volume of the Styrofoam sample? 8. What is the density of the Styrofoam sample? Now look at each of the substances separately and complete the chart for the sample it gives you. Mass / Volume = Density Styrofoam / = Wood / = Ice / = Brick / = Aluminum / = 9. Which substances have a mass that is bigger than the volume? 10.Which substances have a volume that is bigger than the mass value? 11.Which substances float in water? 12.Which substances sink in water?
13.Use your answers to questions 9-12 to describe how the mass and volume values of an object affects whether it will float or sink. Now click on My Block in the upper left and set both the mass and volume block to 5.00. (Mass = 5.00 kg and Volume = 5.00 L) 14.Does the block sink or float? Explain using the terms mass, volume and density. 15.What happens when you increase the mass to 5.10 kg? 16.What happens when you change the volume to 5.20 L? 17.What happens when you change the volume to 10.00 L?
Now click on Same Mass in the upper right hand corner and observe that there are four different colored boxes that are all the same mass. 18.Considering they all have the same mass, predict which ones are more likely to float in water and which ones will sink in water based on their size? Still working with the blocks set for the same mass, use the chart below to help you calculate the density of each box. (Note: Make sure the boxes are completely submerged while calculating the volume.) Mass / Volume = Density Sink or float in water? Blue / = Yellow / = Green / = Red / = Now click on Same Volume in the upper right hand corner and observe that there are four different colored boxes all the same volume (size). 19.Considering they all have the same volume, predict which ones are more likely to float in water and which ones will sink in water based on their mass?
Still working with the blocks set for the same volume, Use the chart below to help you calculate the density of each box. (Note: Make sure the boxes are completely submerged while calculating the volume.) Mass / Volume = Density Sink or float in water? Blue / = Yellow / = Green / = Red / = Now click on Mystery in the upper right hand corner and observe that there are four different colored boxes all the same volume (size). Use the chart below to help you calculate the density of each box. (Note: Make sure the boxes are completely submerged while calculating the volume.) Use the chart to figure out what each substance is based on its density. Mass / Volume = Density Substance A / = B / = C / = D / = E / =
Answer key 13.Use your answers to questions 9-12 to describe how the density of an object affects whether it will float or sink. If an object has greater volume than mass values then the object will sink in water. Examples of objects that have a greater mass than volume value are bricks and aluminum. If the object has a greater volume value than mass value then the object will float in water. Examples of objects with a greater volume than mass value are styrofoam and wood. #14, A block with the same mass and volume values has a density of 1 and it doesn t sink or float. #15, Increasing the mass to 5.10kg will (increase /decrease) the density and the block will. #16, If you change the volume to 5.2o L the density(increases /decreases) and the block will. #17, If you change the volume to 10.00 L the density (increases /decreases and the block will. Continue work on the density lab. Sentence frames and stems to help you- #13 If an object has a greater mass than values then the object will in water. Examples of objects that have a greater than value are and. If an object has a greater volume value than value then the object will in water. Examples of objects with a greater than value are and.
#14, A block with the same and values has a of 1 and it will. #15, Increasing the mass to 5.10kg will (increase /decrease) the density and the block will. #16, If you change the volume to 5.2o L the density(increases /decreases) and the block will. #17, If you change the volume to 10.00 L the density (increases /decreases and the block will. #18 & 19, My prediction is that the block will, the block will, the block will and the block will.