Classroom activity Grade 2 Social Studies & Civics

Storm Drain Guardians of Clover Street: A Grade 2 Activity

A grade 2 social studies sorting game where students guard a pretend storm drain, keep everything but rain out of the creek, and give a reason for the rule.

Grade: Grade 2
Subject: Social Studies & Civics
Material: Classroom activity
Time: 30 min
Prep: Low prep
Materials: Blue tape to mark a storm drain and a path to the creek, Item cards described in the Activity Directions, A bin labeled Catch It for items that do not belong

Standards

D2.Civ.14.K-2 C3 Framework

Describe how people have tried to improve their communities over time.

How this material aligns: Students act as neighbors improving their community by guarding a storm drain, keeping trash and spills out of the creek so shared water stays clean for everyone.

All materials for D2.Civ.14.K-2 →

W.2.1 Common Core ELA

Write opinion pieces in which they introduce the topic or book they are writing about, state an opinion, supply reasons that support the opinion, use linking words (e.g., because, and, also) to connect opinion and reasons, and provide a concluding statement or section.

How this material aligns: In the debrief each student states an opinion, that only rain should go down the drain, and gives one reason for the rule using a linking word such as because.

All materials for W.2.1 →

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This material is in the public domain (CC0) and may be copied, edited, and shared freely, without attribution. Updated 2026-07-17.

Objectives

Students will explain that only rain should go down a storm drain and everything else can reach the creek.
Students will sort items into ones that belong in the drain and ones to catch, and give a reason for the rule.

Vocabulary

Storm drain: A storm drain is the grate at the edge of a street that swallows rainwater and sends it through pipes to the nearest creek or river. That water is usually not treated, so only rain belongs down the drain.

Also: creek, rain, guardian

Teacher overview

This is a small-group sorting game for the whole class, run in teams of four or five. On the fictional Clover Street, water that goes down a storm drain does not get cleaned. It flows straight to the creek where fish and ducks live. Students play storm drain guardians whose job is to let rain pass but catch anything else before it reaches the creek. The sorting is the lesson: each item they catch is one less piece of trash or spill in the shared water, which is a real way neighbors care for their community.

Activity Directions

Build the drain (5 min): Use blue tape to mark a square "storm drain" on the floor and a taped path from it to a "creek" area across the room. Set the Catch It bin beside the drain.
Explain the rule: water in this drain is not cleaned, so it goes straight to the creek.
Make the guardians (3 min): Split the class into teams of four or five. Each team takes a turn as the guardians standing at the drain while the other teams watch and then rotate in.
Show the item cards (2 min): Hold up the item cards one at a time so everyone knows them: raindrops, a candy wrapper, dry leaves, spilled paint, motor oil, a soccer ball, and grass clippings. Tell the guardians that only rain belongs in the drain.
Play a round (10 min): Hand the cards to the watching students, who walk them toward the drain one by one. The guardians let the raindrop cards pass down to the creek and stop every other card, placing it in the Catch It bin. After each card, one guardian says why it was caught or let through.
Rotate (5 min): Switch guardians so every team gets a turn at the drain. Reuse and reshuffle the cards so each team makes its own calls.
End and gather (5 min): Stop when every team has guarded a full round. Empty the Catch It bin onto a table so the class can see everything the guardians kept out of the creek, then move to the debrief.

From Water for Schools (waterforschools.org). This material is in the public domain (CC0) and may be copied, edited, and shared freely.

Answer Key

Debrief question: "Which card was the only one that belonged in the storm drain?"
Answer: The raindrop card. Only rain should go down a storm drain, because rain is clean and the drain leads straight to the creek without being cleaned first.
Debrief question: "Name two things the guardians caught and tell why they do not belong."
Answer: Answers will vary. Trash like a candy wrapper, spills like paint or motor oil, and yard waste like grass clippings all do not belong, because they would dirty the creek and harm the fish and ducks.
Debrief question: "Finish this sentence: Only rain should go down the drain because ___."
Answer: Opinions will vary but should give one clear reason, such as because the drain water is not cleaned and goes straight to the creek where animals live.

Differentiation

Support

Give these students item cards with a green edge for rain and a red edge for catch, so the sort is supported by color while they learn the rule. Let them place cards into two hoops before the moving round.

Extension

Ask a student to invent one new item card, decide whether it belongs in the drain or the Catch It bin, and defend the choice with a reason to the team.

ELL supports

Pre-teach drain, creek, catch, and rain with pictures and gestures. Provide the reason frame "This one is caught because ___" so every guardian can explain a call in a full sentence.

Extensions

With adult supervision, walk to a real storm drain near the school, if one is safe to reach from the sidewalk, and look for the animals or creek it might lead to. Back in class, have students design a small sign that reminds neighbors to keep everything but rain out of the drain.