do now if you had to define what a “year” is, how would you define it?

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Do Now If you had to define what a “year” is, how would you define it?

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Page 1: Do Now  If you had to define what a “year” is, how would you define it?

Do Now

If you had to define what a “year” is, how would you define it?

Page 2: Do Now  If you had to define what a “year” is, how would you define it?

Learning Target

Today I will develop a universal definition of a year.

Page 3: Do Now  If you had to define what a “year” is, how would you define it?

Make a prediction…

Do you think every planet (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto) have the same length of year? Why or why not?

Page 4: Do Now  If you had to define what a “year” is, how would you define it?

Labeled Diagram

Planetary order and path around the sun.

Page 5: Do Now  If you had to define what a “year” is, how would you define it?

What is a year?

You just diagrammed it.

1 year = 1 journey around the sun.

Page 6: Do Now  If you had to define what a “year” is, how would you define it?

Planetary DataPlanet Year length (days)

Mercury 88

Venus 224

Earth 365

Mars 687

Jupiter 4,332

Saturn 10,759

Uranus 30,685

Neptune 60,189

Pluto 90,465

What is the trend?

Page 7: Do Now  If you had to define what a “year” is, how would you define it?

Chart it out… Bar graph the year lengths. Next to your graph, explain the trend in

words.

Planet Year length (days)

Mercury 88

Venus 224

Earth 365

Mars 687

Jupiter 4,332

Saturn 10,759

Uranus 30,685

Neptune 60,189

Pluto 90,465

Page 8: Do Now  If you had to define what a “year” is, how would you define it?

Your Definition:

Using what we have discovered about planetary years, write your own universal definition of a year – pretend you are explaining it to a younger student.

Page 9: Do Now  If you had to define what a “year” is, how would you define it?

Exit Ticket:

How can our understanding of a year help us understand “seasons” – how do they relate to each other?

Page 10: Do Now  If you had to define what a “year” is, how would you define it?

Do Now

Do you think every planet in our solar system has seasons? Why or why not?

Page 11: Do Now  If you had to define what a “year” is, how would you define it?

Learning Target

Today I will research one planet in our solar system in order to compare it to Earth.

Page 12: Do Now  If you had to define what a “year” is, how would you define it?

Guiding Questions Does your planet have an atmosphere? What is the temperature range on your planet?

(Why?) Could your planet support life? Why or why not? Does your planet have moons? What is the

definition of a moon? Does your planet have “seasons”? Why or why

not? Make a compare/contrast chart (Venn Diagram, T-

chart, etc.) and compare your planet with Earth in terms of what you researched.