This week we drew models to discuss the density of different objects, and how we know if one object is more dense than another. In our model, we compared spread out atoms to close together or more compact atoms, and we explained that when atoms are more spread out it causes things to be lighter in turn atoms close together are more dense. The bottom half of our drawing shows on a scale that water is less dense than a wood block based on the atoms being close together or spread out. I think having students draw a model is a great method for students to make predictions, it allows them an opportunity to be creative while also presenting their thought process. I will definitely be using the model method in my future classroom.
This week we replicated the M&Ms experiment from last week, but instead of just watching the M&Ms in the water we made predictions and educated guesses. My group specifically tested the effect of M&MS bleeding in hot vs cold water, and we discovered that M&MS bleed faster in hot vs cold water. My main question is what causes the M&MS to melt faster in hot water compared to cold? Our group talked about it having something to do with the spread of atoms but I am not sure if that is correct!
Hey Monet! I was also curious about what causes the M&MS to melt faster in hot water compared to cold. The idea of the spread of atoms is a great hypothesis!
ReplyDeleteHi Monet! We had similar models of how some objects are more dense than others! I also really liked replicating the experiment from last week and testing new things that could affect how the m&ms spread in the water. I enjoyed reading your blog post!
ReplyDeleteHi Monet, I would assume that the MnMs bleed color faster in warm water because hot objects have faster moving particles, whereas cold objects have slow-moving particles. So, when we mix hot water with and MnM, the diffusion of color into the water is going to occur at a faster rate.
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