8-4572
8th Grade
Nativity Catholic School
Archdiocese of San Francisco
2024 San Mateo County Office of Education STEM Fair
How does baking soda react in different liquid bases?
Abstract
The idea behind this project was to determine how baking soda reacts with liquids with different levels of acid or bases that were neutraul, or bases that may be items that we drink on a normal every day basis. Well, other than acetone.
�We used acetone - fresh squeezed orange juice - a european version of gatorade (aquarius) - red wine - coffee & white vinegar.
Best to do this project with a helper or two.
Purpose Statement
Baking soda activates when it’s mixed with an ingredient high in acid. Once its activated, carbon dioxide is produced. This is what allows the baking soda to rise. Sometime’s it becomes so active, that the liquids overflow their containers. The purpose here, was to see how much the baking soda can be “activated”
Hypothesis
I think that when I add the baking soda, the liquid with the higher acid, will fizz up and overflow the container we’ve used. Maybe some would evaporate, or if it does absolutely nothing. I love to bake, and I’ve seen what happens when I add too much baking soda to my cake and the, kinda blow up. We will try to cover the top of the container with a ballon, and see if the ballon traps the gasses.
Experimental Procedures and
Materials
Materials
Measuring cups
Spoons
Glass jars
Baking soda
White Wine Vinerger
Coffee
Red wine
Fresh squeezed orange juice
Acetone
Aquarius
Experiments
1. Get your container set up
2. Put 1 cup of each liquid in the containers
3. Then add 1 ½ tablespoons of baking soda
4. Then put a balloon on and see what happens, hopefully before the liquid and baking soda react and activate.
Experimental Results
This experiment was a success! Almost all of the liquids reacted to the baking soda, the only ones that did not activate were the coffee and the aquarius. It seems those two were to low in acid.
The vinegar EXPLODED, we couldn’t get the balloon on fast enough and the liquid expanded over the top of the container. When we did get the ballon on top, it filled with gas. We thought it may blow off.
The OJ, reacted similar, but no explosion. Just lot’s of gas as you can see in the image.
Analysis of Experimental
Results
Vinegar
Before
After
The second, I added the baking soda to the vinegar. It started to fizz up and bubbled to an overflow. A lot of the liquid from the bottle came out right after I put the baking soda in and as we are putting the balloon on. The gasses blew up the balloon to kind of a weird shape as you can see in the after picture.
Analysis of Experimental
Results
Fresh squeezed orange juice
Before
After
Fresh squeezed orange juice. It started rising right away, but much slower than the vinegar. as it got to the balloon, it got much faster curdle on top to make that foamy kind of texture.
Analysis of Experimental
Results
Acetone
Before
After
The second I put the baking soda in it went straight to the bottom, no reaction. About 15 seconds later, it started to fizz up a lot. It took about 25 seconds all of the gases to start to rise into the balloon. It started to look like a fizzy soda. A bit of gas, nothing like the first two.
Analysis of Experimental
Results
Red wine
Before
After
Red wine, the second I put the baking soda in it, the wine stayed the same and the baking soda went straight to the bottom. It took about 15 to 20 seconds for all the gases to start to blow up the balloon a little bit. It’s about the same size as the acetone balloon. The baking soda fell straight to the bottom after 25 seconds. No reaction
Analysis of Experimental
Results
Coffee
Before
After
Nothing happened to the coffee. It stayed the exact same. The baking soda immediately fell to the bottom. The coffee was the same and look the same as it did before I put the baking soda in. I went to check on it a day later in the coffee looked exactly the same with baking soda on the bottom.
Analysis of Experimental
Results
Aquarius
Before
After
The Aquarius stayed exactly the same. Nothing happened to it. All the baking soda went to the bottom, but it got a little foggier the color. The balloon got a little bit of gas in it, but not much to blow it up so we can stand up by itself. I thought this one would work as one of the best turns out it didn’t.
Conclusions
I found this experiment to be fun. I got to do this with my dad and we made a huge mess, we learned that the liquids that we thought were going to blow up, did the exact opposite, and the bases we thought would do nothing blew up. We were both wrong. The vinegar really was the biggest surprise, it was like a volcano, we lost the most liquid here in just the first few seconds. We did this one first, and then everything else seemed kinda boring after it!
Acknowledgements
My dad and mom helped me a lot with this project. Mom took videos and some pictures of my project when we added the baking soda to the liquids. My dad helped me set up the project a lot. My dad put the balloons on after I poured the baking soda in.
Bibliography and
Sources
I did not use any resources to find this experiment my parents helped me a lot with this project.