required practical density regular and irregular objects

• What does the density of a material tell us?

  The mass for a given volume
• How can objects be broadly divided based on measuring dimensions?

  • Regular objects: Dimensions are easy to measure (e.g., cube).
  • Irregular objects: Dimensions are not easy to measure (e.g., vase).
• What tool would you use to measure the length of each side of a regular object?

  Ruler
• What must you determine first to find the density of a regular object?

  The mass
• What piece of equipment can be used to determine the mass of an object?

  Balance
• Why can't the dimensions of an irregular object be measured easily with a ruler?

  They do not have simple geometric shapes
• What method is used to determine the volume of irregular objects?

  Displacement
• What is the first step in determining the density of an irregular object?

  Finding the mass using a balance
• What piece of equipment is filled with water when using the displacement method?

  Eureka can
• What feature does a Eureka can have that allows water to flow out?

  A spout
• When an object is placed in a Eureka can, what happens to the water?

  It is displaced and flows out
• What does the volume of water displaced from a Eureka can represent?

  The volume of the object
• What piece of equipment is used to measure the volume of water displaced?

  Measuring cylinder