Earth Science β Weather Detectives & Wild Storms | Unit 1, Lesson 6 of 6
π Grade: 2nd Gradeβ±οΈ Duration: 55β65 minutesπ Subject: Earth Science + Engineeringπ§ͺ Hands-on Hook: Build and test a mini storm shelter
πͺοΈπ π¨
Scientists learn about storms. Engineers use that information to design safer tools and shelters.
π NGSS-aligned focus:
Applying weather evidence to an engineering challenge by planning, building, testing, and improving a storm-resistant design.
π― Learning Objective
Students will design a small shelter or storm-protection model, test it against wind and rain, and use test evidence to explain how one redesign made the model better.
π‘ The Big Idea
Weather science is useful because it helps people prepare and design wisely. If engineers know that a storm may bring wind, heavy rain, or both, they can test materials and shapes that protect people, animals, or equipment better.
π¬ The Science
This capstone lesson is the payoff of the whole weather unit. Students have learned about weather tools, cloud clues, severe-weather warning signs, forecasting, and water in the air. Now they apply that knowledge. A flat roof might catch more water. A loose wall might fall when the wind blows. A stronger shape or a better cover can improve the design.
This goes beyond earlier-grade βbuild something funβ engineering because the design choices must connect to real storm evidence. That makes the challenge feel like real problem solving, not just crafting.
π¬ Key vocabulary:
criteriaconstraintprototypetestredesignevidence
π§° Materials
Paper, index cards, or cardstock
Tape
Craft sticks, straws, or pencils
Cotton balls, toy animal, or a paper weather station card to protect
Small tray
Fan, hair dryer on cool, or strong hand fanning
Spray bottle or spoonfuls of water
Student worksheet page from this lesson
π Design Challenge Rules
CriteriaYour design should protect the object inside from wind and water as well as possible.
ConstraintUse only the simple materials you have at home and build something small enough to test on a tray.
Evidence ruleYou must change something for Version 2 and explain why that change helped or did not help.
π Letβs Get Started
Step 1 β Define the storm problem: Choose what your shelter protects: a cotton-ball βfamily,β a toy animal, or a weather station note card. Ask what dangers your design needs to handle β wind, rain, or both.
Step 2 β Plan Version 1: Sketch the shape before building. Point to the parts that block wind, cover the top, or hold the structure steady.
Step 3 β Build the prototype: Use the materials to build a first version on the tray. Keep it simple enough to improve later.
Step 4 β Run the storm test: Blow wind with a fan or by fanning. Then add light rain with a spray bottle or spoon. Watch what fails first: tipping, leaking, flapping, or collapsing.
Step 5 β Redesign: Change one or two important features. Maybe add a stronger base, a slanted roof, more tape, or lower walls.
Step 6 β Test again and defend your answer: Compare Version 1 and Version 2 under the same storm test. Which one worked better, and what evidence proves it?
π¬ Discussion Questions
Why should engineers test a model instead of only saying, βI think this will workβ?Look for: tests give evidence and can reveal hidden problems.
What failed first in Version 1, and why does that matter?Look for: naming a real failure point like leaking roof, tipping wall, or weak base.
Why is it smart to test Version 2 in the same way as Version 1?Look for: same test makes the comparison fair.
How did weather science help your design choices?Look for: connecting wind, rain, storm clues, or severe weather learning to the engineering decisions.
π Extension
Extra challenge: Design a weather-alert tool instead of a shelter, such as a bright signal flag, warning sign, or simple rain cover for a weather station.
Gifted extension: Test three roof shapes or three wall materials and make a small bar graph of which one performed best.
I am protecting ________________________________________________.
My design must handle _____________________________________________.
Sketch Version 1. Label the roof, walls, base, or other important parts.
2οΈβ£ Storm Test Results
Version
What happened in wind?
What happened in rain?
Biggest failure point
Version 1
Version 2
3οΈβ£ My Redesign
I changed _________________________________________________
because Version 1 _________________________________________________
4οΈβ£ My Evidence Claim
Version ______ worked better because _________________________________________________
The evidence is _________________________________________________
βοΈ Parent Answer Key β Detach Before Giving Worksheet to Students
1οΈβ£ My Design Plan
Accept any reasonable design that clearly aims to protect the chosen object from wind, rain, or both.
2οΈβ£ Storm Test Results
Answers vary. Strong observations describe a real result such as tipping, leaking, blowing over, or staying stable.
3οΈβ£ My Redesign
Look for a specific change tied to a failure point. Example: βI added more tape and a slanted roof because Version 1 leaked and the top bent down.β
4οΈβ£ My Evidence Claim
A strong claim compares the same test conditions across versions and cites one clear piece of evidence. Example: βVersion 2 worked better because it did not tip in the fan test. The evidence is that the cotton balls stayed dry and the walls stayed standing.β
β What success looks like
The child plans, builds, and tests instead of skipping straight to a final claim.
The child identifies a real failure point in Version 1.
The child connects the redesign to storm evidence and compares the two versions fairly.
π₯Ό
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