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0. Jonathan Karbas

1. Which liquids found at home are acidic and which ones are base?

2. I think most of the substances found at home are acidic, with the exception of baking soda and soap which are bases, and the control which is neutral .

3. Put 20 drops of each substance, then put 1 drop of the universal pH indicator in each well, and then compared the color of the substances to the pH color chart to find out their pH number.

4. The control turned green, baking soda turned blue-green, orange juice turned orange, vinegar turned red-orange, soap turned 4.5, and milk turned yellow.

5. The control is neutral; baking soda is a base; and orange juice, soap, and milk are acids.

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1. Alexa 4th Grade
2. Which liquid is acid and which one is base?
3. Hypothesis
Orange juice and vinegar will be acid because they are both sour.
Soap and Milk will be base because they aren't sour and soap is slippery.
Baking soda will be base because baking soda and water is slippery and it isn't sour.
4.Method
Add 20 drops of liquid and 2-3 drops of universal indicator.
5. Observation
No two colors are the same
6. Conclusion
I thought that Milk and Soap would be base, but they are not.

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Brandon Lim

1. Brandon and mom
2.which is acid, base, and neutral?
3. I think orange juice is acid because it is a liitle sour
4. Add 20 drops of samples snd each 2 drops of pH indicator
5.the colors were very different
6.all of them were different. There were acids, neutrals, and bases.

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1. Research Question:
Which liquids are acid, neutral or base?

2. Hypothsis:
Control will be neutral
Baking soda will be base
Juice and Vinegar will be acid.
Soap and Milk will be acid from the video we watched.

3. Methods: Added 20 drops of samples in the well and add 2-3 drops of universal indicator.

4. Results: Baking soda is base and all the other liquids are Acid except for Control.

5. Conclusion: Soap turned out to be different from the video we watched earlier. The video showed soap to be base but my hand soap was acid. Everything else turned out to be what I expected.

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Daniel Kim 5th

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Olivia Kim ( 3rd grade)

I learned that milk is acid because milk does not taste sour.

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Daniel Kim 5th

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Daniel Kim 5th

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William Kim (4th grade)

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Olivia Kim

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0. Joseph Park, 6th grade
1. Research question: What liquids are acid and which are base.
2. Hypothesis: The orange juice will be acid but milk will be base or neutral.
3. Methods: I used 2 wells for each liquid and put in 20 drops of each liquid in each well. Then I put in 1 drop of the pH indicator to each well.
4. Results: Milk, Vinegar, and Orange Juice are all acids. (pH scale of 6, 4, and 5.) The control was neutral (pH 7) Baking Soda and Soap are both base. (pH of 10 and 9)
5. Conclusion: Milk is actually just a bit acidic. Acids seem more sour while bases are more bitter.

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control 7
juice 4
soap 5
baking soda10
vineger 5
milke 6

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1: Samuel Chun, 3rd grade, P.S 184.
2. Q. What pH levels do substances have?
2: Hypothesis: Sorry, I did not think of that wile I was doing it.
3: 6 wells with different liquids drops vary by 2 different liquids.
Result: Milk, Soap, Orange juice, Vinegar are Acid and Controller is neutral ~ base, Baking soda base.

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0. Esther Lee, 5th grade
1. Research question: Which liquids are acid and base?
2. Hypothesis: The control will be neutral and most of the liquids will be acid.
3. Methods: 2 wells each of different liquids, 20 drops per liquid in each well and 1 drop of pH indicator.
4. Result: Orange juice, soap, and vinegar are acids, the baking soda and milk are bases. The control is be neutral.
5. Conclusion: The acid and bases vary, with more "sour" liquids as acids and more bland as bases.

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One interesting thing I have learned is milk and soap are acids.

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my soap is acidic(?!)
I learned that baking soda is base

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Unfortunately I cannot take a video or a  photo of my project

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I'm done

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William Lee, 3rd grade, Bedford MA

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1:

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1. Research question:
Which liquids are acids, or a base?
2. Hypothesis: Vinegar acidic, bases, bluer darker color, juic, acidic.
3. Method : Add 1/4 cup of each liquid twice to each containers, add universal indicator, analyzed results
4. Results: Hypothesis correct, juice and vinegar acidic.
5. Conclusion
Liquids with acidity more red, such as vinegar and base liquids are blue

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My soap was a different color, so I tried two different types of soaps.

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-Allison

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Matthew Park 5th, Beck Junior High

Question: Is Baking Soda an Acid or a Base?

Hypothesis: Baking Soda is a Base

Method: First, I used pipets to dip the substances into containers. Next, I diped Universal Indicator into the substances. Finally, I recorded the results.

Observation: I observed that my soap was rather acidic

Conclusion: My hypothesis was correct. Baking soda has a pH of 9. I learned that Milk has a pH level of 6.

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4 Elliot Aum

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Daniel Park

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0. Joshua Kim
1. Which liquids are acid and base?
2. I think every one of the substances is acid except for control.
3. Get 20 drops of each liquid, then put 1 drop of pH indicator in each liquid and then use the pH color to find what number of pH it is and find out if it is an acid or a base or neutral.
4. The control is a neutral; orange juice, soap, and milk is an acid; and baking soda is a base.
5. I found it amazing that so many things are acids and there are such things as base. The way it changed shape was very colorful and fun.

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I DID IT!!!!

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I

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My juice, vinigar, milk were acidic

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This is my result.

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Results:
*In order
Substance: Control, Vinegar, Orange, Baking, Milk, Soap
pH:7,2,4,9,6,4
A/B/N: N, A, A, B, A, A

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This is my result: 😀

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0. Joshua Kim
1. Which liquids are acids and base?

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I am done!

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0.Promise Baek
1. Which liquids are acidic, or base?
2.Acids will be red to green-yellow, and bases will be green to purple.
3.I poured all the liquids(and the baking soda plus water) into the sample cups. I labeled the top. Then I put 20 drops of each into the smaller containers.
I then put 1 drop of the universal indicator into each container. I then recorded them.
4. The vinegar is most acid because it is reddish, but also because it is the most sour.
5. The more the base there is, the darker it is.(for example, pH level 14 bases are dark purple).

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My result. The soap is yellowish because I used a different soap.

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0. Joshua Kim

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0. Sylvia Yee
1. Question
Which liquids are neutral, base, or acid?
2. Hypothesis
Vinegar, orange juice, and soap will most likely be acid, milk and baking soda will be base, and control will be neutral.
3. Method
Drop 20 drops of each liquid into the containers, duplicate it, then add one drop of the indicator.
4. Result
Vinegar: Acid (4)
Milk: Acid (6)
Orange Juice: Acid (4)
Baking Soda: Base (9)
Soap: Acid (5)
Control: Neutral (7)
5. Conclusion
Milk turned out to be Acid instead of base. For Baking Soda, one side was lighter than the other.

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3: Added 20 drops of everything and added one drop of indicator.
4: Most liquids were acid, but the baking soda was base.
5: The soap was an acid.

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Everything has a different pH color!

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This is my result

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0: 0: Rayoon Kim + my mom prepared the materials
1:which liquids are acid/netral/basE?
2. Hypotheses: Orange juice + vinegar is sour, acid. Baking soda+water is slippery, so It will be a base. Milk will be base, with  baking soda + water, and soap because they are slippery, and control will be neutral.
3. Method: out 20 drop of each material, then 1 drop of the indicator.
4. result: Control was neutral(7), milk is slightly acidic(4), soap is slightly basic(7.5), orange juice is medium acid(3), baking soda+water is medium acidic(9), vinegar is very acidic(2).
5. Conclusion: I was wrong on the milk, and the rest were correct. Control was neutral, milk is slightly acidic, soap is slightly basic, orange juice is medium acid, baking soda+water is medium acidic, vinegar is very acidic.

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0 - Subin Y
1 - Research Question: Out of the given liquids, which are neutral, acid, or basic liquids?
2 - Hypothesis: Liquids like Orange Juice and Vinegar will be acids.
3 - Methods: After labeling which liquid will go where, I put twenty drops of each in their wells. After that, I added one drop of Universal Indicator.
4 - Result: Orange Juice, Vinegar, Soap, and Milk were acids while Baking Soda was a basic liquid and Control was neutral.
5 - Conclusion: As soon as I poured a drop of Universal Indicator in each well, the color of each liquid changed. Based on the colors, I was able to distinguish if it was neutral, acid, or base on the pH scale.

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This is my experiment result

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I did it by myself and my hypothesis is that everything with a sour taste is acid and stuff that tastes bland is base. The way I did this experiment is by putting set amounts of liquids into each well and than putting the pH tester in. I found that my hypothesis was false and milk is an acid. :C

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Question: Which liquids are acid, and others base?
Hypothesis: I predicted that most liquids would be acid.

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0. Minjae Kim
1. Which liquids are acidic or basic.
2. I think orange juice will be acidic because it is very sour.

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0. Kyle Kim
1.What is pH of milk?
2.I think milk is acid because when I drink milk, it felt a little sour.
3. I put 20 drops of milk and one drop of indicator.
4. I observed that the milk turn into yellow color.
5. I can tell from the result that milk is acid.

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It is very interesting and fun!

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I did the experiment with my mom. The question was, which liquids are acids and which are bases? My hypothesis was that orange juice definitely be an acid. I put each liquid into two wells with each well containing 20 drops. After that, I put 2 drops of indicator into each well. I noticed that the wells with the control were actually more basic than they were supposed to be, which was surprising to me.

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Me and my mom did it together

1)which liquids are acid, neutral, or base
2) l predict orange juice and vinegar are acids, because they smell a bit sour
3)l did 20 drops in each well, and 1 drop of sulution
4)l observed my hypothesis was correct
5) soup water was neutral. Orange juice, milk, and vinegar were acid. Baking soda was base.

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0.Katie Yoon
1.Is there a certain reason each liquid has a different color?
2.I thought that the control and soap would be kind of green because their both clear and the indicator is green

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0-Leo Park
1-Research question: how can we know this liquid is acid or base
2-hyphothesis-vinegar=sour vinegar=acid, orange juice is sour=probable acid, soap=slippery=acid, backing soda=good at washing=acid, milk= sweet=base
3-Methods: 20 drops of every liquids in and  1 drop of Universal Indicator in every space. Observe the color and write the ph to the recording sheet.
4-Results=Acid=milk, vinegar ,orange juice, soap, base=baking soda neutral=control
5-Conclution= almost every sample was acidic.
6-Bonus question= Why are there only 14 ph levels?

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1. Question Which liquids are acids or a base

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1. Question Which liquids are acids or a base

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2. Hypothesis: Orange juice is sour so it must be acidic. 3.

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1-  Which liquids are acids, bases?
2- My hypothesis is that vinegar will be acid, soap will be acid and Baking soda will be acid, Control will be neutral and milk will be base.
3- I added the liquid to the 1 drop of indicator
4- vinegar, milk, and soap were acids. Baking soda was a base

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0.Tyler Han
1.Research Question: how can you tell which is liquid, acid, or base?
2.I think the more sour liquids will be acid, and baking soda, and control will be base.
3. added 20 drops of each liquid, and one drop of the universal indicator, and observed as it turned colors.
4.Vinegar, soap, milk, and OJ were acid, the control and soap were base.
5. at first, I had trouble deciding what colors they were, but after some time, 4 of the 6 liquids were acid, and the other 2 were base.

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0.Michelle Ahn
1.Which liquids are acid and base?
2.Baking powder would be a base. Vinegar and Juice would be acids.
3.Method: add 20 drops of sample and 1 drop of pH indicator in each area. Observe the color using the scale.
4.Juice was an acid, along with vinegar milk and soap. Backing soda was my only base.
5.Almost all of my liquids were base.
(also my soap was a different soap)

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0.Samantha
1.Which is liquid, acid, or base and how can you tell?
2.You can use the pH indicator
3.I added about 20 drops of each liquid and 1 drop of pH indicator
4.control was neutral, orange juice was acid, soap was base, milk was acid, baking soda was base and vinegar was acid. You can tell by the taste or the smell of the liquid.
5.I was so surprised when baking soda was base and milk was acid! Since baking soda kinda sounded acidic and milk tasted so savory i was so confused!

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0. Aidan Park
1. Research Question:  Which liquids are acids, or a base?
2. Hypothesis: Vinegar, OJ, and Soap will be acids, because they have a sour taste. Baking soda will be a base, because it is bitter. Milk will be a neutral, along with the control.
3. Method: Drop 20 droplets of substanses, and 1 drop of indicator.
4. Result:
Control: 7; Neutral
Orange Juice: 4; Acid
Milk: 6; Acid
Soap: 5; Acid
Baking Soda: 9; Base
Vinegar: 3; Acid
5. Conclusion: How was Milk acid???? Also, my soap was dish soap.

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0. Min Jung Lee & teachers
1. Research question: Which liquids are acid and base?
2. Hypothesis: Milk, soap are bases as it is slippery. Juice, vinegar are acids as they are sour.
3. Methods: Added 20 drops of samples and 1 drop of pH indicator in each well and observed the color using the pH indicator.
4. Result: Soap was base. Juice, milk, vinegar were acids.
5. Conclusion: It was so interesting as soon as I dropped the universal indicator for a split second it was green but it rapidly changed color! Majority of my liquids were acidic. I was very surprised a lot of the things I use daily are acidic. I want to look around my house and find more basic liquids.