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Free scope and sequences, TEKS breakdowns, phenomenon ideas, and engagement activities for the 2024 Texas science standards.

I'm Chris Kesler, a former award-winning Texas middle school science teacher. This is the site I wish I'd had in the classroom. One hub with TEKS breakdowns, scope and sequences, phenomenon starters, engagement ideas, and resources, all aligned to the standards you actually teach.

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All standards updated for the 2024 TEKS revision

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5th Grade TEKS Standards

Click any standard to see what it means, how to teach it, where students get stuck, and aligned resources.

TEKS S.5.9 • Earth & Space

Day & Night Cycle

The Standard

"Demonstrate that Earth rotates on its axis once approximately every 24 hours and explain how that causes the day/night cycle and the appearance of the Sun moving across the sky, resulting in changes in shadow positions and shapes."

💡 What This Standard Actually Means

The Key Verb

"Demonstrate" and "explain". Students use models (a globe, a flashlight, a stick in the ground) to show how Earth's rotation works. They have to nail three connected ideas: Earth rotates on its axis once approximately every 24 hours, that rotation causes day and night (the side facing the Sun is in daytime, the side away is in nighttime), and the rotation also makes the Sun appear to move across the sky, which causes shadow positions and shapes to change over the course of the day. The shadow piece is huge for this standard. Long shadows in the morning and evening, short shadows at noon, and the way shadows sweep across the ground as the day goes on are all evidence of Earth turning.

From a 5th grader's bedroom window, the Sun seems to come up in the east, climb across the sky, and set in the west every single day. It looks like the Sun is moving. The trick of this standard is that the Sun isn't doing the moving. Earth is. Our planet spins on its axis once approximately every 24 hours, and that spin is what makes the Sun appear to travel across the sky.

The day and night cycle is the simplest piece. As Earth rotates, half of the planet faces the Sun (daytime) and half is turned away (nighttime). Texas is in daytime when the Sun is shining on it. Twelve hours later, Earth has turned and Texas is on the dark side, so it's nighttime. The whole rotation takes about 24 hours, which is why one day is 24 hours long.

The shadow piece is what really locks the concept down. In the morning, the Sun is low in the eastern sky and shadows are long and pointing west. As the morning goes on, the Sun appears to climb higher (Earth keeps rotating), and shadows get shorter. At noon, the Sun is highest in the sky and shadows are at their shortest. By afternoon, the Sun appears to move toward the west and shadows stretch out long again, but now pointing east. By the end of the day, watching a stick's shadow change is watching Earth rotate. By the end of this unit, kids should be able to explain why the Sun seems to move and why shadows do what they do, both because of one big idea: Earth is spinning.

💬 From Chris's Classroom

Shadow tracking is the demo that makes this standard real for kids. I plant a stick or pencil straight up in a small lump of clay on a piece of poster paper, then take the whole setup outside on a sunny day. Every hour, the kids and I trace the shadow with a colored marker. Each shadow gets a time written next to it. By the end of the school day we have five or six shadows fanning out in different directions and lengths around the stick. The kids can SEE Earth turning. They can SEE the Sun appearing to move. We come inside and they trace the same pattern with a flashlight on a globe at the front of the room. Now they're connecting the model to what they just watched outside. If you skip the outdoor shadow lap, the model on the globe never lands the same way. Get them outside.

⚠️ Misconceptions Your Students May Have

These are some of the most common misconceptions. Knowing what to look for can help you get ahead of them.

"The Sun moves across the sky"

✓

The Sun isn't moving across the sky. Earth is rotating, which makes the Sun APPEAR to move. Imagine sitting on a merry-go-round watching a tree on the playground. The tree looks like it's moving, but really you're the one going around. Same thing with the Sun. We're spinning. The Sun is staying put. The motion we see is our motion, just from our point of view on the ground.

"It's night because the Sun goes away"

✓

The Sun doesn't go anywhere. It's always shining. It's nighttime because Earth has rotated, and the spot you're standing on is now turned away from the Sun. While Texas is in nighttime, kids in places like Japan or Australia are in daytime because their part of Earth is facing the Sun. Half the planet is always lit up. The half you're on changes every 12 hours.

"Shadows look the same all day long"

✓

Shadows change a lot during the day. They're long in the morning when the Sun is low in the east. They get shorter as the Sun climbs higher in the sky. They're shortest near noon when the Sun is at its highest point. They get long again as the Sun moves toward the west and the day winds down. They also change direction, sweeping from west (morning) to east (afternoon) as Earth rotates. Watching a shadow over a day is watching Earth spin.

"Earth rotates once a year"

✓

Earth rotates once approximately every 24 hours, which is one day. The trip around the Sun takes a year (about 365 days), but that's a different motion called revolution. Rotation is the daily spin, like a top. Revolution is the yearly trip around the Sun, like a runner on a track. Don't mix them up. Day and night come from rotation. Years come from revolution.

📓 Teaching Resources for 5.9

These resources are aligned to this standard.

Complete 5E Lesson

Day & Night Cycle Complete Science Lesson

The full unit for 5.9: differentiated station labs, editable presentations, interactive notebooks (English + Spanish), student-choice projects, and assessments built around Earth's 24-hour rotation, the day/night cycle, and changing shadows. Built on the 5E model.

⏱ Best for: Full unit coverage • Multiple class periods

Station Lab

Day & Night Cycle Station Lab

9-station hands-on lab where students model Earth's rotation, track shadow changes, and explain why the Sun appears to move across the sky. Input stations (Explore It!, Watch It!, Read It!, Research It!) and output stations (Organize It!, Illustrate It!, Write It!, Assess It!). Print and digital. English and Spanish.

🔬 Best for: Core instruction • 1-2 class periods

Student Choice Projects

Day & Night Cycle Student Choice Projects

Choice board with nine project options plus a "design your own" pathway. Students demonstrate their understanding of Earth's rotation and the day/night cycle through writing, building, illustrating, presenting, or digital formats.

🎓 Best for: Project-based assessment • 2-3 class periods

🌎 Phenomenon Ideas for 5.9

Use these real-world phenomena to anchor your lesson. Show students the phenomenon first, let them wonder, then build toward Day & Night Cycle as the explanation.

🔎

Phenomenon 1

The Disappearing Shadow

A pencil is stuck upright in a lump of clay on a piece of poster paper outside in the morning. The shadow is long and points across the paper. By lunchtime, students go back outside and the shadow has shrunk to a small dot just under the pencil. By the end of the school day, the shadow is long again, but now it's pointing in a totally different direction. Same pencil. Same paper. Three completely different shadows.

💬 Discussion Prompt

"Why does the same pencil have three different shadows during the day? What does that tell you about what's happening to either the Sun or the Earth between morning and afternoon?"

🔎

Phenomenon 2

The Sunrise on the Other Side of the World

A teacher pulls up a live world map on the board showing where it's currently day and night across the planet. Texas is in the middle of daytime. Japan is dark, around 11 p.m. Australia is just starting morning. China is sleeping. The line between day and night cuts across the planet like a soft curtain, and as the kids watch, the line slowly creeps westward. At the end of the school day, the line has moved noticeably across the map.

💬 Discussion Prompt

"Why is it day in some parts of the world and night in others at the exact same moment? Why does the line between day and night slowly move? Make a model with a flashlight and a globe to show what's happening."

🔎

Phenomenon 3

The Spinning Globe and the Flashlight

In a darkened classroom, the teacher holds a flashlight steady at one side of the room. A student stands holding a globe and slowly turns it on its tilted axis. As the globe spins, students can see Texas move from the dark side, around to the lit side, across the front, and back to the dark side. One full rotation. The flashlight (the Sun) never moves. But Texas goes from "night" to "morning" to "noon" to "afternoon" to "evening" to "night" again, exactly because the globe is spinning.

💬 Discussion Prompt

"Did the flashlight have to move for Texas to go through a whole day on the globe? What does this tell you about whether the Sun moves around Earth or Earth rotates? Use the model to explain why the Sun seems to move across the sky."

💡 Free Engagement Ideas for 5.9

Outdoor Shadow Tracking

On a sunny day, plant a pencil upright in clay on a sheet of poster paper and place it on a flat outdoor spot. Trace the shadow with a colored marker every hour throughout the school day, writing the time next to each tracing. By the end of the day, students have a map of the shadow's journey. They use the map to discuss when the Sun was lowest, when it was highest, and how Earth's rotation made the shadow change. Best lesson of the unit by far.

Materials: Pencils, clay, large sheets of poster paper, colored markers, sunny outdoor location, sticks of chalk (alternative method)

Globe-and-Flashlight Day-Night Model

In a darkened room, one student holds a flashlight while another slowly rotates a globe. Place a small sticker on Texas on the globe. As the globe rotates, students watch Texas move through "morning" (just rotating into the light), "noon" (directly facing the light), "afternoon" (rotating away), and "night" (on the dark side). Each pair sketches a quick before-and-after diagram of where Texas was at four different times in the rotation.

Materials: Globes, flashlights, small stickers, recording sheets, darkened room

Shadow Length Investigation

Each pair gets a small flashlight and a wooden block standing upright on a piece of paper. They shine the flashlight at the block from a low angle (near the surface) and trace the long shadow it produces. Then they raise the flashlight higher and higher, tracing the shadow each time. They notice the shadow gets shorter as the "Sun" gets higher. They write a sentence connecting their results to why noon shadows are short.

Materials: Small flashlights, wooden blocks or small standing objects, paper, pencils, recording sheets

24-Hour Cycle Comic Strip

Each student draws a 6-panel comic strip showing what's happening to a person in Texas at 6 a.m., 9 a.m., noon, 3 p.m., 6 p.m., and midnight. Each panel shows the position of the Sun in the sky (or below the horizon) and the length and direction of the person's shadow. They label each panel with what part of Earth's rotation is responsible for the scene. Brings the standard together as a story.

Materials: Paper, pencils, colored pencils or markers, comic strip templates (optional)

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Texas Science Teacher Resource Hub

🚀 Jump to Your Grade

5th Grade TEKS Standards

Day & Night Cycle

💡 What This Standard Actually Means

⚠️ Misconceptions Your Students May Have

📓 Teaching Resources for 5.9

🌎 Phenomenon Ideas for 5.9

The Disappearing Shadow

The Sunrise on the Other Side of the World

The Spinning Globe and the Flashlight

💡 Free Engagement Ideas for 5.9

Outdoor Shadow Tracking

Globe-and-Flashlight Day-Night Model

Shadow Length Investigation

24-Hour Cycle Comic Strip

Year-at-a-Glance Pacing Guides

Trusted Across Texas

Texas Schools and DistrictsLove Kesler Science

What Teachers Are Saying

Give Your Science Teachers Everything They Need

See It in Action

Texas Schools and Districts
Love Kesler Science