Begin by collecting 15 plastic grocery bags and 15 paper bags with handles. Make sure they are all from the same store. Fill zipper seal bags with beans or sand to use as weights. Make sure all the bags have equal amounts of weight for easy data recording. Hang a plastic coat hanger up on a towel rack in the bathroom. Hang one bag around the wire hook by its handles and begin filling it with weights. Record how much weight it takes for the bag to break at the handles. Repeat this five times for single bags and then double the bags up and repeat five more times. Determine which type of bag holds more weight and whether double bagging is actually useful.
This topic explores the volume of juice in different juice boxes related to the size of the box. Collect three to five different brands of juice boxes. Record the volume of each box on a chart by brand. This is found on the packaging and is often recorded in ounces. Measure each box's dimensions, length, width and height, to find the actual geometric volume for each brand of juice. Compare the volume of the stated ounces for each box with the actual volume of the boxes measurements to see if the packaging is done efficiently.
Purchase three new containers of Play Dough or modeling dough. Note the volume that is recorded on the package. Measure the volume of dough yourself by using the formula for the volume of a cylinder. Sciencefairadventure.com says to do this by multiplying the area of its circular base by the height of the cylinder. The area of a circle is found by measuring the radius of the circle, squaring it and multiplying it by Pi (3.14). The result is in cubic centimeters. Play with the dough for ten minutes. Form it back into its original cylindrical shape in the container then remove it and measure the volume again. Record whether any volume is lost by playing with the dough. Repeat this for all three containers.
Purchase a dozen eggs and boil half of them. Collect six gallon milk jug caps. Set three out on a tray in a triangle patter and put a raw egg on each. Top each egg with another cap. Lay another tray or heavy cardboard across the top of the three eggs. Begin stacking weight on top of the tray. Canned food is a good choice as long as all the cans weigh the same. Record how much weight the raw eggs can hold before they crack. Repeat the same process with the other three raw eggs and the six hard boiled eggs. Determine which egg is stronger, the raw or boiled.