Milankovitch Cycles
The Water Cycle
Water Properties
Albedo
Feedback Loops
100

What is a cycle?

A cycle is a process that repeats itself over and over again, with the "end" of one cycle usually meaning the "beginning" of another cycle.

100

What is a reservoir?

A large, often still body or collection of water!

100

Why is water considered the "universal solvent"?

It can dissolve more things than any other solvent!

100

Albedo is an example of WHICH kind of feedback loop?

Positive

100

The end result of a positive feedback loop causes that loop to happen...

More/More intensely

200

What is obliquity and what does it do for our planet?

It is the earth's axial tilt, and it is responsible for the earth having seasons.

200

What is a flux (in terms of water)?

The movement of water into or out of a reservoir (similar or more general answers may also count).

200

Is water more dense in its solid state or in its liquid state? Explain your answer!

It is more dense in its liquid state, and we can tell because ice floats on top of liquid water.

200

What is the definition of albedo?

How much light an object reflects.

200

The end result of a negative feedback loop causes that loop to happen...

Less/less intensely

300

What is eccentricity and what does it do for our planet?

Eccentricity is the gradual movement from a fully circular shape of our orbit to a more elliptical shape, and it is responsible for the length of our seasons.

300

What is the largest reservoir on the planet?

The ocean!

300

Pick One:

Why is cohesion of water important to life on earth?

Why is adhesion of water important to life on earth?

Cohesion allows for surface tension, since water molecules tend to stick together!

Adhesion allows for plants to pull water up from their roots and into their bodies through capillary action!

300

Name an object/thing with a high albedo!

Many answers work here, provided whatever that thing is is bright!

300

Give me an example of a positive feedback loop!

Examples here may vary, but...

Albedo, Global Warming, Pregnancy are all good things you could say here!

400

What is precession and what does it do for our planet?

Precession is the "wobble" of earth on its axis, and it can change how extreme our seasons are.

400

Name the steps of the water cycle from any starting point, but put it in order until it loops back around to that same starting point again!

Ex: Reservoir -> Evaporation -> Condensation -> Precipitation -> Run-off -> Reservoir

400

How have humans used the compressibility of water to our advantage?

When water is compressed through a small space at high pressure, it can cut through things - Even really tough things like metal, and it does so smoothly!

400

Name an object/thing with low albedo!

Many answers work here, provided that thing is dark!

400

Give me an example of a NEGATIVE feedback loop!

Examples may vary, but...

Homeostasis in the body, deer hitting cars and others are all great examples here.

500

How does the sun affect our planet?

The sun is responsible for our seasons, weather and climate. As seen in the previous responses, the angle of the earth relative to the sun (along with the distance) can determine the length or intensity of the seasons, or whether we have them at all. The energy from the sun is also responsible for the heat of our planet in general, and is used by producers to create energy that is used by many organisms.

500

Name the specific steps of the water cycle that would be considered potential fluxes!

Evaporation, Precipitation, Run-off

See also: Transpiration

500
Why is water's specific heat capacity important to life on earth?

The specific heat capacity of water is very high compared to most other substances, which means that it takes much more to change its temperature. This is useful for beings like us who have so much water in our bodies, because it allows us to regulate our temperature and keep it at a healthy level!

500

Identify which kind of feedback loop albedo is, and then explain why it is that kind of feedback loop!

Albedo would be a positive feedback loop, because as the surface of the planet darkens, the planet heats up. As this occurs, more of the ice begins to melt, leading to an even darker surface, and more heat. The process builds on itself, ergo a positive feedback loop!
500
EXPLAIN the difference between a negative feedback loop and a positive feedback loop.

A negative feedback loop is a feedback loop whose end result causes the loop to happen LESS, while a positive feedback loop is a feedback loop whose end result causes the loop to happen MORE and more intensely!