Plastic from Milk

Place the plastic bag on the scale. record the information on the graph for initial mass for trial 2

The materials used during the experiment included three plastic cups, three gummy bears, masking tape, marker, balance, calculator, tray, one plastic spoon, a measurement tray, and a ruler. The three plastic cups were used to hold the tap water, salt water, and sugar water. The masking tape and marker were used to label each cup with the

Measure 500ml of tap water in the 500cm3 beaker, then measure 5g of sodium hydrogen carbonate using the 50cm3 beaker and weight scale and place in the beaker of water, using the glass rod to dissolve it into the mixture.

12. Place the magnet on the scale to measure the mass of the object. Record the mass in Data Table 5.

Ten cups are an ideal amount of cups to give to the model but there should be the same amount of milk and coffee in each cup.

1. Place a plastic measuring trough on top of the digital balance, and press the "tare/on" button so that the mass of the trough will be "ignored." The digital balance should read "0.000 g" after this step.

Weigh the nut, the aluminum cup, and the test tube clamp all together. Record the total

Place gum (still in wrapper) onto scale. Measure its mass, and record the mass in the second column.

Weigh the mass of the beaker including the 300mls of water in it on a scale to record the weight, taking away the weight of

Create a coil out of a 20 cm length of magnesium ribbon. Place the coil in the crucible and measure the total mass of the crucible, cover, and magnesium ribbon and record the mass.

Abstract: The objective of the lab is to determine the volumes of the polystyrene spheres with three different measuring tools: Water Displacement, Analytical Scale, and Triple Beam Balance Scale. The experiment is meant to help understand the concept and application of precision and accuracy in experimental measurements. Accuracy is a measure of how closely the results of repeated measurements are to the true value of what is being measured. Precision is the variability in the results from the repeated measurements, and how close the repeated measurements were to one another. In this lab, the method for measuring the volume of the polystyrene spheres is done with the previously stated tools: Water Displacement, Analytical Scale, and Triple Beam Balance Scale. The standard deviation for the entire classes volumes and masses are recorded to determine the densities.

Determine the weight of the water by subtracting the weight of the vial with water by the weight of the vial on its own.

This purpose of this experiment is to calculate the thickness of a sheet of aluminum foil. This experiment is necessary because the human eye cannot accurately measure the small thickness of aluminum foil with only a ruler. However, to understand the procedure one needs to understand conversion, density, and volume. Conversion is when one converts one unit to another unit using a conversion factor(e.g. 2.54cm/in). Density is how much mass there is in a certain volume(density=mass/volume) and it stays constant in a substances and mixtures that have the same composition. Volume is the amount of space that an object occupies. The experiment will consist of weighing of aluminum foil, measuring the length and width, then converting these values

2. Obtain an evaporating dish and carefully weigh it to the nearest 0.01g on top of the loading scale and record its mass on the data sheet.