Question

How does water help to maintain the body's temperature even when the weather is cold?

a) As water molecules slow down they form more hydrogen bonds and release energy.
b) When the body experiences a large drop in temperature it forces the water molecules to move faster in order to break hydrogen bonds and release energy as heat.
c) As the temperature decreases the water molecules lose kinetic energy, this allows them to form more stable polar covalent bonds.
d) Since water has a high heat capacity it retains heat longer.

1) a, c, d
2) b, c, d
3) a and c
4) a and d

Answer 1

Water's high heat capacity, due to hydrogen bonding, allows it to absorb and retain heat, which helps to stabilize the body's temperature in various environmental conditions.

Step-by-step explanation:

Water helps to maintain the body's temperature in cold weather primarily because water has a high heat capacity, meaning it can absorb a lot of heat before its temperature increases. This is due to the strong hydrogen bonds between water molecules, which require significant energy to break. As a result, water moderates temperature changes within organisms and in their environments by absorbing heat when the environment is warm and releasing stored heat when the environment is cool, thereby maintaining homeostasis.

Option d) is the correct explanation, as water's ability to retain heat longer is crucial for maintaining temperature stability. Therefore, the correct answer to the student's question would be 4) a and d, since both statements highlight the role of hydrogen bonding in water's temperature regulation properties.