Pumpkin Sink or Float Class Graph | Fall Science | Preschool & Kindergarten

Make fall science hands-on, visual, and math-rich with this Pumpkin Sink or Float Class Graph! Students predict whether a real (or mini) pumpkin will sink or float, test it together, then record and analyze class results on a large graph. Perfect for circle time, science centers, or a quick whole-group investigation.

What’s Included

• Class Graph Poster (portrait): “Pumpkin—Sink or Float?”

• Prediction Cards: student “sink/float” choice cards (B&W)

Skills & Standards

• Science/Inquiry: predicting, testing, observing, buoyancy basics

• Math/Data: counting, comparing quantities, reading a simple graph

• Language: using science vocabulary, speaking & listening during data talks

Easy Prep

1. Print the class graph and prediction cards (portrait, playful font).

2. Gather a pumpkin, clear bin of water, and towels.

3. Optional: laminate pieces for year-after-year use.

How to Use (Whole Group)

1. Wonder & Predict: Show the pumpkin. Ask, “Will it sink or float?”

2. Make Predictions: Students place their prediction card on the class graph.

3. Test It: Carefully place the pumpkin in water. Observe the result together.

4. Record & Discuss: Add the result to the graph, count, and use data talk prompts (Which had more? How many more? Did our predictions match?).