The Seasons Worksheet
Part A: The Seasons Here on Earth:
Part B: Intensity of Sunlight.
- What do you predict is the cause of the seasons on Earth? (This is YOUR model.)
- In your model, are the seasons experienced at the same time in the Northern and Southern Hemispheres?
- In your model, does the length of the day change with season?
- In your model, are there any special locations?
- Is your model consistent with the facts listed about the Earth?
- How would you like to change your model to be more consistent with the actual observations of the Earth?
- In one sentence, state the cause of the seasons.
- List one fact, and explain the difference between a fact and a model.
Part C: The Seasons on Uranus:
- No written answer required.
- When you hold your card parallel to your hand, does the square of light cover more or less of your skin than when you hold it at a slant?
- In which case does your hand feel warmer?
- In January, which hemisphere (North or South) is most perpendicular to the Sun?
- Explain how the tilt of the Earth's axis causes the seasons to vary over the course of the year.
Part D: The Seasons on Planet _______:
- In position A, above, how many daylight hours would a typical Uranian have each day? To what Earth season(s) might this position correspond (Winter, Spring, Summer, Fall)?
- In position D, how many daylight hours would a Uranian on the 'left' half of the planet have each day?
- In position B, how many daylight hours would a Uranian on the 'left' half of the planet have each day?
- Where on Earth would you have to live to experience seasons like those of a typical Uranian?
- What do you name your new planet?
- Describe the seasons on your planet.
- How are ________'s seasons different from the Earth's seasons?
- Where would you expect life to flourish on ________? Where would you expect it to fail miserably?
- There is a way to make ______ somewhat more Earth-like in its seasons, without altering the fact that it is tidally locked. What property of ______ would make its seasons more Earth-like?