Does the temperature of water affect the formation of crystals?

If I use hot water for my saturated solution, then it will form crystals faster than with cold water.

Crystal egg Geode Materials

• Two brown blown out eggshells

• 3/4 cup of Hoosier Hill Farm Alum powder

• You will be using 3 drops of glue for the eggshell

• One small paintbrush

• Glass containers

• 30 drops of food coloring red and blue

• One cup of hot and cold water

• spoon

• One pair of latex gloves

• One pair of scissors

• Thumbtack

• One drying rack or newspaper

1. Gather all of the materials

2. Blow out your egg follow these steps:

Get a thumbtack and an egg. With the thumbtack push it down on the top and bottom of the egg to create a hole. Once you make the hole make sure that the egg yolk and egg white come out of the egg. Now with scissors you are going to cut it in half.

3. Put 3 drops of glue on the egg. Make sure to spread it with a small paintbrush.

4. After you do that you are going to put one teaspoon of Alum powder on the eggshell. Make sure that you get the edges too. Now you let it sit overnight.

5. For the saturated solution you will need one cup of hot and cold water. You will also want to put this in a cup. You are going to combine it with 3/4 cup of alum powder and stir it until the powder has dissolved. After you have mixed it you are going to put 30 drops of food coloring and stir it until the color is completely mixed with the solution. Now you are going to let it sit for 30 minutes.

6. After you have let it sit for 30 minutes you are going to get your eggshell and you are going to place it in the solution. Now with a spoon you are going to carefully push your egg in the bottom of the cup. You are going to leave them there for 12 to 15 hours for the crystals to form.

7. After 15 hours take it out with a spoon and place it on a drying rack. Now you have your crystals.

8. Repeat the process for a total of 3 trials.

Independent variable: The different temperature of water hot and cold water is my independent variable.

Dependent variable: The egg forming the crystals will be my dependent variable.

Constant:

• The type of cup that I use will be the same

• The amount of water I use will be the same

• My eggs will be the same

Does the temperature of water affect the formation of crystals? My hypothesis is if I use hot water for my saturated solution, then it will form crystals faster than with the cold water. My hypothesis was correct. I got crystals with the hot water but not with the cold water. The reason why I did not get crystals with the cold water is because the cold water does not dissolve materials as fast as warm water. The reason why the warm water dissolves materials faster is because the molecules in the warm water move more so it is able to dissolve faster.

The purpose of my experiment was to see if the temperature of water was going to affect the formation of the crystals. My problem statement is does the temperature of water affect the formation of crystals. My hypothesis was If I use hot water for my saturated solution, then it will form crystals faster than with cold water. I thought that the hot water would be best because it will evaporate faster than the cold water.

My hypothesis was correct. I got a lot of crystals with the hot water and I did not get any crystals with the cold water. In my first three trials I did not get any crystals and that was because I had been using the wrong type of alum powder. Since I did not get crystals in my first three trials and I knew why I did not get cystals I did the experiment again. This time I got crystals and I used the right type of alum powder.

Now I did not get any crystals in my second and third trial. The reason why I did not get crystals in my first trial is because I did not remove the membrane of the eggshell. The reason why I did not get crystals in my second and third trial is because I used one cup of water instead of two cups. Another reason is because when I was mixing my solution with the alum powder it did not dissolve comepletly because I did not have enough water for it to dissolve. Also the containers that I had were not deep enough to hold two cups of water. Another reason is because the brand of alum powder that I had does not make crystals.

My procedures were to blow out the eggshell then cut it in half and apply glue and alum powder to the eggshell and let it sit overnight. For your solution you use water, mix it with the alum powder and food coloring and let it sit for 30 minutes. Then you pour the solution into a seperate cup. You put your egg in there and let it sit in the solution for 12 to 15 hours. Then you take them out and place them on a drying rack. I also took the temperature of the cold and hot water. The cold water was 19 degrees celsius, and the hot water was 41.1 degrees celsius.

One of the things that I found out was that the brand of alum powder that I had been using is not the correct type of alum powder to make the crystals. The alum powder that I got is aluminum sulfate and wgat you need to make crystals is aluminum potassium sulfate alum powder. Another thing that I found out was that the membrane of the eggshell needed to be removed. Because the calcium carbonate from the eggshell needs to come into contact with the alum powder. If you leave the membrane on then that is covering the calcium carbonate that is on the eggshell and the alum powder cannot get into contact with the calcium carbonate. Another thing that I found out was that for my solution instead of using 2 cups of water I only used 1 cup. Since I used 1 cup of water when I added my alum powder to the water it did not dissolve completely because there was not enough water for it to dissolve. The cups that I was using were not deep enough to hold 2 cups of water. So I needed to get a bigger container to hold 2 cups of water.

These findings can be used in day to day life because now you know that you need to buy alum powder that is aluminum potassium sulfate to make crystal egg geodes. This is also recreating the process to make crystals which takes thousands of years sometimes millions. This is why crystals are do special because of how long it takes for them to be created. Some ways to improve this experiment is for me to buy the correct type of alum powder so that I can get more crystals. You can also use other things to make crystals like sugar and epsoms salt.

This can be used in day to day life because this experiment is re-creating the process of which crystals are formed. The reason why crystals are so expensive is because of how long it takes for them to form. It takes crystals thousands or even millions of years to form. That is why they are so special.

Stewart,Martha. "Crystal Egg Geodes." Martha Stewart, September 20,2018,marthastewart.com

"Make you own incredible Easter DIY Crystal Geode Egg." UniLand Kids, March 18,2018,https:www.youtube.com

Misilla. "DIY Crystal Egg Geode." Learn To Grow, March 18,2016, https://www.youtube.com

ACKNOWLEDGEMENTS