Does anybody know how to do this science experiment or where it's found on the internet?

Question

I'm doing an experiement to find out if hot water can freeze faster than cold water. It's also called the Mpemba effect. Any info within the next week would help. Thanks!

Answer 1

Try to design the experiment on your own. Do your best to give the two samples the exact same environment. To save time and money, use relatively small samples. Putting a container of hot water into a freezer is very unlikely to harm any freezer. Cooks put food directly from the oven into the freezer to freeze it quickly, reducing the chance any bacteria will multiply.

Answer 2

You will need a freezer and the permission to use it. Putting warm water into a freezer can destroy it... The freezer would need to be a big one so the heat from the warm water can be dispersed properly. Restaurants and maybe school caféterias have such freezers or meat lockers. They can get to -30 degrees (-22 degrees F). Next you need an accurate thermometer, a stop watch and a tray in which you can pour the water. First try the cold water. But a certain amount in a dispenser and chill it in an ordinary fridge to as cold as it will get. The usually get to about 8 degrees C (46 degrees F). Fridges don´t turn water into ice. Pour it in the tray, measure the temp and put it into the deepfreezer. Turn on the stopwatch and look in on the water at maybe 10 minute increments. Note the time. After it has frozen do the same for the warm water. I don´t know hot hot the water should be but 80 degrees C (176 degrees F) should do.