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Science

Plant Detective Agency

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Grades K-220-30 min over several daysSource: Creative Dad Company

Kids play plant doctor, using clues from a wilting plant to diagnose what's gone wrong. It's a patient, observation-based project that turns everyday houseplants into a mystery to solve.

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Prep: 11 minActivity: 40 min1 session~$2/groupOne table or clear floor areaBeginner-friendly

Setup

Gather only common or recycled items needed to test one hypothesis by adjusting a single condition, such as moving the plant or changing its watering schedule. Place the materials beside a simple recording sheet or blank paper, and prepare the Plant Detective Agency challenge in one working area; no digital device is needed.

Activity

  1. Observe a struggling plant and predict what might be wrong, like too little light or too much or too little water.
  2. Test one hypothesis by adjusting a single condition, such as moving the plant or changing its watering schedule.
  3. Check the plant over several days and discover the first fix didn't help, then try a different clue-based fix.
  4. Present a final diagnosis and care plan explaining what the plant needed to recover.

Done when: The learner completes Plant Detective Agency after carrying out this core test: Check the plant over several days and discover the first fix didn't help, then try a different clue-based fix. The learner then uses that result to complete the final task: Present a final diagnosis and care plan explaining what the plant needed to recover.

Materials

Two small potted plants or seedlings, water, a ruler, a magnifying glass

Shown for the Quick Start version — switch tabs above to see what changes.

Disclosure: Materials links below go to Amazon. As an Amazon Associate, Creative Dad Company earns from qualifying purchases at no extra cost to you.

Steps

  1. Observe a struggling plant and predict what might be wrong, like too little light or too much or too little water.
  2. Test one hypothesis by adjusting a single condition, such as moving the plant or changing its watering schedule.
  3. Check the plant over several days and discover the first fix didn't help, then try a different clue-based fix.
  4. Present a final diagnosis and care plan explaining what the plant needed to recover.

Standards it satisfies

  • NGSS · 2-LS2-1

    Plan and conduct an investigation to determine if plants need sunlight and water to grow.