Density is defined as the mass divided by the volume of the object. The density of an object can be determined from the mass and volume of that object. It is easier for students if you reduce the number to 8 by using all the samples of metal but only two wood and two plastic cubes. Jan 11, 2017 dcset10 dcset12 density cube sets duration. We suggest using the nylon offwhite, least dense plastic cube and the. Knowing the mass and volume of an object allows the calculation of its density. Using a metric ruler and the chart below, determine the volume of the cube and record it in table 4. Your tray contains two solid metal cubes of approximately equal volume. What prior knowledge should students have for this lesson. Density is a topic studied in the middle years science curriculum, but conceptual understanding of density requires understanding of many topics associated with the middle years mathematics. If the mass and volume of a cube is found, then the density of the cube will determine the material of the cube.
For example the volume of a cube can be determined from its length times width times height. Students identify each metal cube by determining its density. Identify the mystery cubes based on their densities from the chart below. After students have calculating the density of their cubes using the method in 1, they. This lab requires that you already have density cube sets, you that you have various cubes made of different materials that the students can measure etc. Then place each sample in water to test if it floats. We can also use 200mm cube, but you have to convert the compressive strength of 200mm cube to the equivalent of 150mm cube to know the actual strength of the concrete. Gold au has a much higher density than aluminum al. Using selected and high pure materials only, each density cube was lapped to 10x10x10mm to reach 1cm3 and 21. Mystery cube density lab central bucks school district. The students compare their density results to a chart of known densities to determine what material each cube is. To discover the identity of each cube based on its density. Determining the density of a hardened concrete specimen duration. Density of solids and liquids by peter hidnert and elmer l.
Note, from the table below, that the density of water is 1 g. Calculate the density by measuring the mass and volume of your samples. In this lab there are 10 cubes of unknown material. Use a triple beam balance to determine the mass g of 1 cube. Each one separately ground and polished it represents the theoretical density of the respective element by its weight. This means that a gold cube has greater mass than an aluminum cube of the same size. Density has the units of mass divided by volume such as grams per centimeters cube gcm3 or kilograms per liter kgl. Mass should be expressed in units of grams and volume in units of ml or cm3. Determine the density of an object with a regular shape. To discover the slope of a line of a mass vs volume lab is density of the object. Liquids will layer based on density and not on the thickness of the liquid. Density cube lab with lesson plan by ted goerner tpt.
The densities of the elements are listed in regents reference table s. Density in the middle years sc 1 ience and mathematics curriculum this unit of work has been designed to promote students understanding of density. A cube of cork has a density of 200 kgm3, while water has a density of kgm3. The density of a substance is defined as mass per unit of volume. All 10 of the 1 cubes are the same volume, making it easy to calculate and compare densities. The students enjoy examining the different blocks and weighing them.
With this lab student will find the density of ten cubes of equal size. Students will find the density of cubes made from different substances and determine if they sink or float. The true identify of the density cubes is disguised. Students will record data and fill in lab sheets on day 1 and day 2. With the lab density cube set for physical science and physics, perform a variety of density experiments. Density is a basic physical property of a homogeneous substance. Obtain a set of objects cube, cylinder, sphere, etc. Lesson 2 the nitty gritty of density by teresa kennedy page 1416 density station data sheet page 17 liquid layers lab sheet page 18 lesson 3 wet goes up, must come down by cory patterson page 1921 wet goes up must come down lab data sheet page 22 lesson 4 density is in the air by tiffany, teresa and cory page 2326. Use this set of 10 density cubes to demonstrate the density differences of various materials and experiment with mass, density, specific gravity, and buoyancy. Compressive strength of concrete cube test pdf, procedure.
Density cube lab by omg science teachers pay teachers. Density cube set 9 cubes, graduated cylinder, ruler, balance. Great set to demonstrate density to my 4th grade class. Using common liquids, this lab shows students how, based on differences in density, liquids can stack and not mix within a graduated cylinder. Mystery cube density lab part 2, advanced science objective.
Peffer density data may be used for obtaining relationships between density, chemical composition, thermal and mechanical treatments of materials, etc. Experiment 3 introduction to density introduction the purpose of this experiment is to understand the meaning and significance of the density of a substance. This is a great handson lesson in which students will try to identify 10. This lab allows students to get handson experience with density cubes and allows them to see how density truly does vary from substance to substance. Density cube lab students will find the density of cubes made from.
Density cubes purchase a six metal density cube set. Using the equipment in the virtual lab a balance scale, beakers, string, a digital scale, and a vernier caliper, i will be finding the mass and volume of the cubes given to plug into the density formula, in order to find the cubes densities and based on their densities, i will be identifying an element present in each cube copper, iron. To understand that density is a physical property which can be used to identify a substance. Turn your pdf or hard copy worksheet into an editable digital worksheet. Density lab density, a measure of the amount of material mass in a given space volume, is expressed as the ratio d mv. This classic lab is now available with extra large easytomeasure 2. Find the density of each cube and record it in the chart. Record the mass, volume, and density of all known materials styrofoamwood.
This lab was designed for block sets where the blocks all have the same volume, but varying masses and densities. Wind, ocean currents, and plate tectonics are all driven by differences in density. The lignum vitae cube is the only wood cube in the set that sinks in water and the polypropylene cube is the only plastic cube that floats. Change the mass and volume and try to make the block float. This classic lab includes extra large easytomeasure 2.
What is the relative density of the cork compared with the water using the densities from the previous question. This means that every centimeter cube of this wood will have a mass of 0. The volume of a regular object can be determined from its dimensions. Differences in the densities of earths matter are the basis of many common processes. Plus, students can use the density of the samples to calculate the purity. United scientific dcset10 density cube set, 10 cubes. The density of a solid or the density of a liquid are both expressed as grams per milliliter gml. This circular defines density and specific gravity, describes 11 methods hydrostatic weighing, picnometer, flotation. This set comes with 10 cubes4 metal, 3 plastic, and 3 wood.
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