Tin .228
Students were investigating heat transfer by conduction and they set up the simple experiment you see here. They utilized three
spoons made of different materials: the specific heat capacity of each material was recorded in the students' data table. Each spoon
was placed in a pot of hot (90°C) water and a pat of butter was placed on the handle of each spoon. The butter melted first on the tin
spoon and in about the same amount of time on the plastic and wood spoons. Based on the data table and the experimental results
select ALL of the conclusions that are appropriate.
A)
Conduction occurred more readily in the tin due to its lower specific heat
capacity
B)
Heat transfer via conduction occurred from the hot water to the spoons
and then to the butter.
C)
When in contact with hot water, there was no transfer of kinetic energy
through the wood or plastic.
D)
The atoms in the tin spoon vibrated and collided at a greater rate than
those in the wood or plastic spoons.
E)
In all three cases energy is transferred from the faster moving hot water
molecules to the slower moving molecules in the spoon.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

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