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3rd Grade Science
Space Systems
11. Solar System
11.3 Seasonal Changes, Earth's tilt and orbit
Why Do Seasons Change? Discover Earth's Tilt and Orbit!
You will discover how Earth's tilted axis and its yearly journey around the Sun create the four seasons we experience every year.
What You'll Learn
You learn Earth's tilted axis causes the four changing seasons.
You discover Earth completes one full orbit every 365 days.
You explore how solstices and equinoxes mark seasonal turning points.
You find out opposite hemispheres always experience opposite seasons simultaneously.
What You'll Practice
1
You will answer questions about Earth's tilt causing seasonal changes.
2
You will identify key terms like solstice, equinox, and revolution.
3
You will compare daylight hours across cities in different seasons.
Why This Matters
Understanding Earth's tilt and orbit helps you explain why seasons change and connects you to bigger ideas about our Solar System and the world around you.
This Unit Includes
1 Video lesson
Practice exercises
Learning resources
Skills
Earth's Tilt
Seasons
Orbit
Solstice
Equinox
MA Curriculum Aligned