What happens when an IceBerg Melts??

Melting Icebergs Experiment

 

Images from personal trip to Alaska May 28 - June 4 2008

Hypothesis –

a. What will happen when the ice melts?

As the ice melts water will be displaced causing a slight overflow in the bowl. The ice will stay together because of the law of attraction. 

Reflection –

a. As the ice melts, does the water overflow? Explain.

As the ice melts, the water does not overflow as I initially thought. I quickly remembered that I began the experiment with ice already formed at the basin (the bottom of the glass bowl) prior to adding water to the environment. The mass of the ice is already accounted for with the mass of the water added, and therefore the melted water just replaces the mass of the solid water (or something like that). Therefore there was no true water displacement, thereby causing the bowl of water to not overflow. 

Experiment Start Time: 12:30pm on 7/10/12

OBSERVATIONS:

Ice begins as one mass of seemingly semi-attached ice cubes.

As water is added, some ice immediately float to the top of the water. The ice that floats freely float to the top first. The ice cubes that were initially stuck together while freezing stay at the bottom longer.

Eventually all ice cubes float to the top. Initially the ice cubes float separately from each other. The ice cubes slowly begin to merge toward each other as if they are attracted to each other.

The ices cubes release small air bubbles as they melt. The cubes that are floating unattached to other cubes melt faster and stay closer to the top of the water. The cubes that are attached to other cubes have larger portions sinking under the water with only a portion of the attached cube floating above the water.

As the water melts, there does not appear to be any water displacement.

Even with no movement of the water the ice moves toward one area of the bowl. As they move, the water moves slightly but only directly where the ice cubes are located.

18 minutes into the experiment and there are few pieces of ice remaining and there still does not appear to be any water displacement.

12:52 pm all ice cubes have melted. There does not appear to be visible water displacement. There is water on the outside of the bowl that has made it to the base of the bowl from the top.

Melting Icebergs Experiment

 

Images from personal trip to Alaska May 28 - June 4 2008

Hypothesis 

a. What will happen when the ice melts?

As the ice melts water will be displaced causing a slight overflow in the bowl. The ice will stay together because of the law of attraction. 

Experiment Start Time: 12:30pm on 7/10/12

OBSERVATIONS:

Ice begins as one mass of seemingly semi-attached ice cubes.

As water is added, some ice immediately float to the top of the water. The ice that floats freely float to the top first. The ice cubes that were initially stuck together while freezing stay at the bottom longer.

Eventually all ice cubes float to the top. Initially the ice cubes float separately from each other. The ice cubes slowly begin to merge toward each other as if they are attracted to each other.

The ices cubes release small air bubbles as they melt. The cubes that are floating unattached to other cubes melt faster and stay closer to the top of the water. The cubes that are attached to other cubes have larger portions sinking under the water with only a portion of the attached cube floating above the water.

As the water melts, there does not appear to be any water displacement.

Even with no movement of the water the ice moves toward one area of the bowl. As they move, the water moves slightly but only directly where the ice cubes are located.

18 minutes into the experiment and there are few pieces of ice remaining and there still does not appear to be any water displacement.

12:52 pm all ice cubes have melted. There does not appear to be visible water displacement. There is water on the outside of the bowl that has made it to the base of the bowl from the top.

Reflection 

a. As the ice melts, does the water overflow? Explain.

As the ice melts, the water does not overflow as I initially thought. I quickly remembered that I began the experiment with ice already formed at the basin (the bottom of the glass bowl) prior to adding water to the environment. The mass of the ice is already accounted for with the mass of the water added, and therefore the melted water just replaces the mass of the solid water (or something like that). Therefore there was no true water displacement, thereby causing the bowl of water to not overflow. 

STEM Strategies

                  STEM Strategies for Diverse Learners

I was tasked with planning a lesson that focuses on STEM strategies for diverse learners. This lesson specifically address my students are diverse and what strategies are critical to meeting their specific needs.



image retrieved July 3, 2012 www.ehow.com


To help plan my lesson, I used the 5 E’s Strategy from this week's class resources. The 5 E's Strategy is an instructional tool that builds and strengthens active learning. As you read my reflection, keep in mind that my Science Lesson Plan connect to one of the unifying themes and one of the Historical Perspectives from the Benchmarks Online site.

Was the 5 E’s Strategy helpful?

Sort of. Some parts seemed redundant. It seemed as if you could really only incorporate one main topic per lesson using the 5 E's strategy. I am not quite sure I like this approach if the topic has two or more smaller components that each follow the 5 E strategy. It limited my approach somewhat.

Was this process different from how you usually plan your lessons?

Not really. I definitely used the 5 E's throughout my lessons. Like I mentioned above I weave in smaller components of the 5 E strategy with different topics.