Our Experiment / Hot & Cold

For the past 2 weeks my friend Paige and I did a experiment. We called it Hot & Cold because it was to do with hot water and cold water. Things we need for the experiment

1. Blue and Red dye

2. 2 Jars

3. Skewer

4. Scissors

5. Dish

6. A Plastic card

First you fill up the jars, one hot and one cold. You put three drops of blue food colouring in the cold water, and then you put three drops of rose pink/red food colouring in the hot water by using the skewer. After that you put one on/in the dish and then the one that’s going on top, put the plastic card on it and quickly flip it over (water shouldn’t come out if you’ve done it right). When you’ve done that, put it on top of the other jar, and slowly slide the plastic card out. And you’re done!

So the first time you do it you have to put the cold water on top of the hot water. The we have to change it around so the hot water is on top of the cold water.

When the hot water is on top of the cold water it doesn’t mix. We think that it’s because the steam from the hot water is acting like a barrier so it doesn’t go through.

But when the cold water is on top of the hot water it mixes because there isn’t any steam barrier to stop it.

Our experiment involves Air Resistance because the steam is air. Also Geothermal energy because of the hot water and Balanced Forces because the hot and cold water are leveled. The Atua would be Ruaumoko.

Heres Our Video
Watch This One First The This One