Week 11

 What did you learn this week?

This week, I discovered that when you place a can of Diet Coke and a can of regular Coke in water, the regular Coke sinks while the Diet Coke floats. Although I'm not completely sure why, my group guessed that regular Coke might have more sugar, which makes it heavier and causes it to sink. We also thought Diet Coke could have more carbonation, which is made of gas, helping it float.

How can you relate what you already knew to what you learned?
This week, we did an experiment where we mixed baking soda and vinegar in a sealed bag. While watching the reaction, it reminded me of when I was younger and did a similar experiment—seeing all the fizz and bubbles and remembering the strong smell. Back then, I never noticed how the mixture changed. This time, I observed that after the reaction, the mixture became thicker, and the baking soda and vinegar separated.

What questions do you still have?
One thing I'm still curious about is why a plunger won’t stick to cardboard. I expected it not to stick, but I’ve never actually learned the reason why plungers don’t work on certain surfaces.




These are the observations of all the experiments:

Vinegar 

- turns to liquid 

- smells like vinegar 

- makes a bubbly noise 

- colder than the regular vinegar 

 - vinegar smells stronger 

M&M's

- Does water temperature matter? 

- color is dissolving in water

- the colors don't mix 

- Why don't the colors mix?

- M&M's turn white while losing water 

- warm water makes it lose color faster

Cold Soda

- condensation 

- "sweating"

- Why are their water droplets that form

- is it warm enough for water droplets?

Plunger

- sticks to anything without holes

- sticks to cardboard but not as well 

- why not cardboard?

Ice melting

- Why is the colder surface making the cold ice melt more?

- pot surface is cold 

- is wood absorbing the water?

- ice on wood is taking longer to melt

Coke float

- They all float 

- Larger regular coke sank both up and down 

- if air is underneath it then it'll float 

- more sugar?

Comments

  1. MorganApril 10, 2025 at 1:26 PM

    Hi Macy! I'm also confused as to why the larger can of regular Coke sank, while all of the other cans float. I wonder if it might have to do with the mass of the object. My group weighed the cans and found that the regular Coke was nearly 150g heavier than the DC. Great post and information. I enjoyed reading your thoughts on the rotations we did. Have a great weekend!

    ReplyDelete

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