Yesterday, you were instructed to bring different sizes of jars to school. Now, we're going to use them for a project. Measure the volume of space in each jar by filling the jar with water from a measuring cup. Dry the jars carefully.

We have put a birthday cake candle into a lump of modeling clay. The teacher will light it, and put the match into a can of water.

One of the students can handle the stopwatch (the kind with a second hand), and get it ready to go while the teacher lights the candle.

When the stopwatch is ready, set one of the jars over the lighted candle. When the candle goes out, stop the stopwatch, and write down the length of time that the candle had burned.

Do this same test in each of the different sizes of jars we have.

We can make a graph, showing the length of time the candle burns in each of the different jars.