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Weather Patterns Over Time

Earth Science — Weather & Climate | Unit 1, Lesson 1 of 6

📚 Grade: 3rd Grade⏱️ Duration: 45–60 minutes🔬 Subject: Earth Science — Weather & Climate
⛅📅🌦️
Daily weather can change, but a detailed weather record helps students notice patterns over several days.
📋 NGSS Standard:
3-ESS2-1 — Obtain and combine information to describe climates in different regions of the world.

🎯 Learning Objective

Students will record weather observations over several days and describe a short-term weather pattern using evidence.

💡 The Big Idea

Weather can change from day to day, but a weather record helps us notice repeated patterns like rainy afternoons, cooler mornings, or windy days after a storm.

🔬 The Science

Science Snapshot
daily observationrecord over timefind repeating patternmake better prediction
A pattern is something that happens again and again across repeated observations.

What is happening?

Weather patterns are changes we can notice when we record conditions such as temperature, wind, clouds, and precipitation over many days. One day of weather is a snapshot; a pattern appears only when we collect repeated observations.

Why it works that way

Scientists use patterns to make better predictions. If afternoons are often warmer, or if certain clouds usually come before rain, those repeated clues help explain and anticipate local conditions.

Look for this in the lesson

Students should think like observers who are building evidence across time. The important move is comparing records rather than judging weather from a single moment.

Ask while you read: What repeated clue makes this weather event part of a pattern instead of a one-time surprise?

Materials

🏠 Household Items to Gather

📋 Printables

Weather Observation Reference

Use more specific weather words
Instead of only saying cloudy or windy, encourage students to describe the sky more like a scientist: cloud type, cloud coverage, wind speed, wind direction, and precipitation.
Cloud reference chart showing cumulus, stratus, cirrus, and nimbus clouds plus clear, partly cloudy, mostly cloudy, and overcast sky coverage.
Cloud types and cloud coverage guide for weather observations.

Sample 5-Day Weather Record

DayTemp.Cloud TypeCloud CoverWindPrecipitation
Mon68°FCumulusPartly cloudySlow, from the west0 mm
Tue70°FCumulusPartly cloudySlow, from the west0 mm
Wed66°FNimbusMostly cloudyFast, from the south4 mm rain
Thu63°FNimbusOvercastFast, from the south7 mm rain
Fri65°FStratusMostly cloudySlow, from the north1 mm drizzle

Let's Get Started

Step 1 — Go outside and notice the weather for today (5 min)
If the weather allows, step outside briefly and ask students to describe today like young meteorologists. Prompt for temperature or warm/cold, cloud type, cloud coverage, wind speed, wind direction, and precipitation instead of only broad words like cloudy or windy.
Step 2 — Read the included five-day weather record (10 min)
Use the sample chart on this lesson page. Help students read the temperature, cloud type, cloud coverage, wind, and precipitation (rain, measured in millimeters when possible) across several days.
Step 3 — Build a simple weather vane and rain gauge (10 min)
Make a simple weather vane by taping two straws into a T shape. Add a paper arrow to the horizontal straw, then balance the straw on a pencil or skewer secured upright in a ball of play dough. If you want to measure rain, use a plastic cup marked in millimeters as a simple rain gauge. See the simple weather vane sketch in the Parent/Teacher Notes for a quick visual.
Easy tool ideas: The paper arrow should point the direction the wind is coming from. If the weather vane is not a hit, students can still record wind as no wind, light wind, or strong wind. If you do not have an outdoor thermometer, students can write warm or cold in the temperature space.
Step 4 — Record evidence on the worksheet (10 min)
Students use the sample weather record and any outside observations to complete the worksheet with specific evidence.
Step 5 — Explain the pattern out loud (10 min)
Students share one complete sentence that names the pattern and the evidence that supports it, such as repeated cloud cover, changing temperature, or increasing precipitation.

Discussion Questions

Why is one weather observation not enough to show a pattern?A pattern needs more than one day of evidence.
What changed over the five days?Students might notice temperature, rain, clouds, or wind changes.
What stayed the same over the five days?Students may notice repeated clouds, repeated afternoon rain, or similar temperatures.
How do your observations help you describe the weather more clearly?Observations give evidence instead of a guess.

Extensions

Extension: Keep a family weather chart for three more days and see whether the same pattern continues.

Parent/Teacher Notes

Teaching move: Push students to use the weather record itself as evidence instead of relying on memory alone.

Important misconception to catch: A pattern does not mean every day looks exactly the same. A pattern can include changes that repeat in a recognizable way.

Simple weather vane sketch:

paper arrow <-----------------> straw | | pencil or skewer | | ball of play dough
Tape two straws into a T shape, attach a paper arrow to the top straw, and balance it on a pencil or skewer standing in play dough.

Student Worksheet

Name: ________________________     Date: ________________________

1️⃣ Read the Weather Record

Use the sample weather record on this lesson page. Write specific observations, not vague words.

DayTemp. or Warm/ColdCloud Type + Cloud CoverWindPrecipitation (rain, mm)What pattern do you notice?
Day 1
Day 2
Day 3
Day 4
Day 5

2️⃣ Name a Pattern

Write one weather pattern you can support with evidence from the record.

3️⃣ Use Evidence

Which observations prove your pattern? Include details like cloud type, cloud coverage, wind, temperature, or precipitation.

🔑 PARENT ANSWER KEY — Detach before giving worksheet to students

1️⃣ Read the Weather Record — Sample Acceptable Answers

Students should use the sample chart on this lesson page and name specific observations such as cumulus clouds, overcast skies, fast wind from the south, or 4 mm of rain.

2️⃣ Name a Pattern — Sample Idea

“The weather became cooler and wetter over the five days.” or “Three days in the middle of the week were cloudy and rainy.”

3️⃣ Use Evidence — Sample Idea

Students should point to specific days and observations, such as repeated rain, lower temperatures, or stronger wind later in the week.

✅ What Success Looks Like

🛠️ Troubleshooting / Teaching Notes