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Big Idea
The orbits of Earth around the sun and the moon around Earth, together with the rotation of Earth about an axis between its North and South poles, cause observable patterns.  These include day and night, daily and seasonal changes in the length and direction of shadows; phases of the moon; and different positions of the sun, moon, and stars at different times of year (A Framework for K-12 Science Education ESS1.B).
Essential Questions
How does day and night occur?
How does day and night occur?
What is the difference between local noon and clock noon?
Why isn't it the same time all over the world?
Standards


SC07-S06-C03-01
Explain the phases of the Moon in terms of the relative positions of the Earth, Sun, and Moon.
SC07-S06-C03-02
Construct a model for the relative positions of the Earth, Sun, and Moon as they relate to corresponding eclipses.
Science & Engineering Practices
Developing and Using Models:  using globes to understand day and night
Developing and Using Models: using globes to understand day and night
Using Mathematical and Computational Thinking:  computing local noon
Developing and Using Models:  using maps and globes to understand timezones
Content/Core Ideas
  • At all times, half of the Earth (an opaque sphere) is illuminated (day) and half is dark (night).
  • The sun is a light source.
  • Objects in the path of light are illuminiated; opaque objects stop light, producing shadows (darkness) behind them.
Crosscutting Concepts
Cause and Effect
Stability and Change
Learning Practices
Journal:  Students write an explanation on how day and night occur.
Academic Vocabulary
  • day
  • night
  • rotation
  • axis
  • observer
  • local noon
  • time zones
Resources
Assessments
Summative:
Mid-summative Exam 3
Formative:
Quick-write  Explaining Day and Night
Formative:
Journal--Day/Night Focus Questions
Formative:
Local Noon calulations
Formative:
Thinking In Time Sheet
Editted Quick-write Explaining Day and Night