Cosmic Tilt Worksheet
Earth Scientist Portfolio
Mission: "Why Does This Happen?" Investigation
Name: ___________________________
Team Name: _____________________ Score: ____/20
Mission Brief: You are a team of global Earth Scientists. Your goal is to solve the mysteries of our planet's temperature anomalies, celestial movements, and climate patterns using active physical modeling and reading evidence.
Phase 1
The Hook: Earth Anomalies
Review the four screen anomalies (July in Dallas vs. Argentina, Alaska's late sun, and the Equator's constant light).
Prediction Prompt: How can all four things happen on the SAME Earth at the SAME time?
Sentence Stem: "I predict that these anomalies can happen at the same time because..."
Phase 2
Human Earth-Sun Model & Kinesthetics
Watch the live physical classroom model using our student Sun and Earth. Record your observations below:
☝️ ROTATION Spinning in place (24 hours)
🔄 REVOLUTION Orbiting the Sun (365 days)
↗️ TILT Leaning at constant 23.5°
What happened during ROTATION?
Sentence Stem: "When the Earth student rotated in place, it caused..."
What changed during REVOLUTION with TILT?
Sentence Stem: "When Earth revolved while holding the tilt, different hemispheres received..."
Page 1 of 4 • Earth-Sun Relationships Investigation Portfolio
Earth Scientist Portfolio • Page 2 Student Name: _________________
Phase 3
Mission Reading: Solving the 6 Mysteries
Read your McGraw Hill article chunks carefully to extract scientific evidence. Answer each of the 6 core mysteries below using precise terms (such as axis, orbit, 23.5° tilt, Tropic of Cancer, Tropic of Capricorn, equator).
Mystery 1: Warmer Days
Why is daytime warmer than nighttime?
Stem: "Daytime is warmer because our rotation causes..."
Mystery 2: Dynamic Seasons
Why do we have seasons?
Stem: "Seasons occur because of Earth's 23.5° tilt combined with..."
Mystery 3: Opposite Solstice
Why is Australia in winter during US summer?
Stem: "Seasons are reversed north and south of the equator because..."
Mystery 4: The 24-Hour Cap
Why is exactly one day 24 hours long?
Stem: "One complete day takes 24 hours because Earth rotates..."
Mystery 5: The 365-Day Cycle
Why is exactly one year ~365 days?
Stem: "One year represents the amount of time it takes to..."
Mystery 6: The Solstice Peak
Why is June 21 considered a special day?
Stem: "June 21 is special because direct sun hits the Tropic of..."
Page 2 of 4 • Earth-Sun Relationships Investigation Portfolio
Earth Scientist Portfolio • Page 3 Student Name: _________________
Phase 4
"Become the Earth" — Four Corners
Listen to the scenario card projected by your teacher. Decide which of the four seasonal positions applies, write your justification, and move when prompted!
Scenario Card 1 Justification Where are you? (Equinox or Solstice?)
Sentence Stem: "This represents the __________ because the Northern Hemisphere is..."
Scenario Card 2 Justification Where are you? (Equinox or Solstice?)
Sentence Stem: "This indicates an __________ because direct solar light hits the..."
Phase 5: "Where Would You Pack This?" Travel Challenge
Put your geographic mapping skills to the test. Answer the travel mystery card to earn team score points!
🎒 TRAVEL CARD: It is December 22. You are traveling directly to Sydney, Australia 🇦🇺. What clothing must you pack?
Choose clothing style:
☐ Heavy Winter Coat
☐ Summer Shorts & Tee
☐ Thick Thermal Ski Pants
Geographic Justification:
Sentence Stem: "I should pack __________ because in December, Australia is tilted..."
Page 3 of 4 • Earth-Sun Relationships Investigation Portfolio
Earth Scientist Portfolio • Page 4 Student Name: _________________
Phase 6
The Greenhouse Heat Trap Roleplay
Review the kinesthetic classroom demonstration where students acted as greenhouse gas atoms trapping thermal energy.
Critical Evaluation: Are greenhouse gases automatically bad for Earth's climate? Explain their role.
Sentence Stem: "No, greenhouse gases are not automatically bad because without them, Earth's temperatures would..."
Think-Pair-Share exit ticket
Combine forces to answer the final classroom challenge question.
FINAL SCIENTIFIC CHALLENGE:
Why can it be summer in Texas while it is winter in Argentina? You must integrate all three terms: tilt, revolution, and direct sunlight.
Sentence Stem: "Texas experiences summer while Argentina experiences winter because Earth's 23.5° tilt combines with its revolution to..."
Misconception Check (True/False):
Summer occurs because Earth's elliptical orbit brings us closer to the sun.
☐ TRUE ☐ FALSE
Total Team Points Earned: _______ / 20 pts
Page 4 of 4 • Earth-Sun Relationships Investigation Portfolio
Cosmic Tilt Slides
Earth-Sun Relationships Challenge
WHY DOES THIS HAPPEN?
20 POINTS POSSIBLE
Welcome, Earth Scientists! Put on your investigator hats. Today, we will physically model, investigate, and gamify our planet's seasonal secrets.
Classroom Game & Slides Companion Start the Challenge →
The Hook: What is wrong with these pictures?
Slide 2
☀️
Dallas, Texas
100°F heat in the middle of July
❄️
Argentina
Freezing winter in the middle of July
🌅
Alaska
Bright sunlight late at night in summer
🌍
Equator
Relatively constant daylight year-round
Ultimate Inquiry: How can all four things happen on the SAME Earth at the SAME time?
Record predictions inside Phase 1 on Page 1 Next: Interactive Classroom Demo →
Human Earth-Sun Kinesthetics
Slide 3
☝️
Rotation Signal
Spin 1 finger in a circle. Represents Earth spinning in 24 hours.
🔄
Revolution Signal
Draw a big circle in the air. Represents Earth orbiting Sun in 365 days.
↗️
Axial Tilt Signal
Tilt your arm sideways. Represents our constant 23.5° angle.
CLASS CHALLENGE (4 Points Possible)
Watch the "Earth" and "Sun" students rotate & revolve.
Be ready to flash your hand signals when the teacher calls them out! Record your observations on Page 1.
Keep hand signals ready and fill out Page 1 Next: Reading Mission →
The Science Mission: 6 Earth Mysteries
Slide 4
Independent Reading Mission (6 Points Possible)
Do not just read the text—solve the mysteries. You are planetary scientists gathering evidence from McGraw Hill.
🌞 Why is day warmer?
🌎 Why do we have seasons?
🇦🇺 Why is Australia reversed?
🕐 Why are days 24 hours?
📅 Why is a year 365 days?
☀️ Why is June 21 special?
Document your discoveries inside Phase 3 on Page 2 Next: Become the Earth Game →
Become the Earth: Four Corners
Slide 5
CORNER A
🌸 March Equinox
CORNER B
☀️ June Solstice
CORNER C
🍂 Sept Equinox
CORNER D
Cosmic Tilt Study Guide
Cosmic Tilt Study Guide
Bilingual Classroom Reference Sheet
Subject: World Geography
Unit 1.1: Earth-Sun Relationships
Review Target: Use this study sheet to prepare for assessments, review key McGraw Hill World Geography concepts, and master the bilingual vocabulary for Earth-Sun Relationships.
Weather vs. Climate
- • Weather (Tiempo): Hour-to-hour or day-to-day conditions of the atmosphere. Instantly changes.
- • Climate (Clima): Long-term trends and patterns tracked over a minimum of 30 years.
- "Climate is what we expect, weather is what we get." — A.J. Herbertson
Rotation vs. Revolution
- • Rotation (Rotación): Earth spinning on its 23.5° axis from West to East. Takes 24 Hours. Causes day & night.
- • Revolution (Revolución): Earth orbiting the Sun in an oval path. Takes 365 Days (1 Year).
- The axial tilt + orbital revolution = the seasonal cycles.
Seasonal Turning Points
Equinox March 21 & Sept 23 Sun strikes the Equator (0°). Global day and night are completely equal in length ("equal night").
Summer Solstice June 21 - 22 Sun strikes the Tropic of Cancer (23 ½° N). Bring the longest day of sunlight to Northern Hemisphere.
Winter Solstice December 21 - 22 Sun strikes the Tropic of Capricorn (23 ½° S). Shortest day of sunlight for Northern Hemisphere.
The Greenhouse Effect (El Efecto Invernadero)
The greenhouse effect is a natural process where atmospheric gases (water vapor, CO₂, methane) trap reflected infrared heat, maintaining temperatures compatible with life (averaging 60°F instead of 0°F).
Disruption: Industrial fossil fuel combustion raises atmospheric CO₂, preventing natural balancing and forcing climate change.
Without greenhouse: 0°F (-18°C) global average
Bilingual Vocabulary Checklist
Axis / Eje Imaginary rotational line.
Equator / Ecuador 0° Latitude line.
Tropic of Cancer 23 ½° N Latitude.
Tropic of Capricorn 23 ½° S Latitude.
Cosmic Tilt Classroom Study Guide • Keep in Binder
