Explore engineering with your preschooler with this fun Halloween boat STEM activity! Kids will use mini pumpkins as boats and explore STEM concepts, such as buoyancy, cause and effect, and more. This Halloween activity is perfect for classroom and at home STEM learning.
And if you want more pumpkin fun, read Spookley the Square Pumpkin and make this adorable craft!
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Halloween Books for Kids
The Pumpkin Thief– Bird’s pumpkins keep disappearing and the animals must use the clues to find out who the pumpkin thief is!
Room on the Broom– How many animals can fit on the broom? After the witch drops some of her things, the animals return it but all want to ride on the broom.
What You’ll Need For This Halloween Boat STEM Challenge
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How To Make This Halloween Boat STEM Challenge
1. Prepare the pumpkins: Carefully cut the tops off the mini pumpkins and scoop out the seeds and pulp, leaving a pumpkin shell.
2. Create the sails: Cut small triangle or curved sail shapes from black construction paper.
3. Attach the sails: Carefully poke a bamboo skewer through each paper sail to create a little mast. Add the sail to the pumpkin boat.
4. Make the ghost seeds: Give kids pumpkin seeds and have them use a black marker to draw tiny ghost faces on them.
5. Fill the bin: Add water to a shallow container.
6. Add the boats: Place the pumpkin boats in the water and let kids add their pumpkin seed ghosts for fun, imaginative play.
7. Make predictions: Ask kids, “Do you think the whole pumpkin will float? What about the pumpkin halves?”
8. Test the pumpkins: Place the whole pumpkins and pumpkin halves into the water. Observe which ones float and which ones sink.
9. Add water to the boats: Have kids carefully add a little water to the hollow pumpkin boats. Test them again to see whether adding water changes their ability to float.
10. Keep experimenting: Continue adding small amounts of water and observe when the boats become unstable or begin to sink.
11. Discuss the results: Talk about what happened when the boats were empty compared with when they contained water. Encourage kids to explain why they think the boats behaved differently.
STEM Benefits
- Buoyancy: Introduces the concept of floating and sinking.
- Prediction: Encourages children to make and test predictions.
- Observation: Builds scientific observation skills.
- Comparison: Kids compare whole pumpkins with pumpkin halves.
- Cause and effect: Children see how changing the pumpkin’s weight can affect its behavior in water.
- Fine motor skills: Drawing tiny ghost faces on the pumpkin seeds provides a fun fine motor activity.
- Creative thinking: Adds a playful Halloween element to a simple science experiment.
Halloween Activities For Preschoolers
Bubbling Witches Brew Experiment– This Bubbling Witches Brew Experiment is the perfect STEM activity for preschoolers to get ready for Halloween! Made like a traditional volcano experiment, this Halloween version is so much better than regular volcanoes.
Haunted Pumpkin Patch Sensory Bin– Halloween is full off ghosts, spiders, and pumpkins, and this haunted pumpkin patch sensory bin allows kids to enjoy the pumpkin patch at home! Using fake pumpkin and vines, you can create your own pumpkin patch.
Halloween Boat STEM Challenge
This Halloween boat STEM challenge uses mini pumpkins as boats! A fun, hands-on engineering activity perfect for fall science exploration.
- Prep Time: 15
- Total Time: 15
- Category: DIY, Halloween, STEM
- Method: Step-by-Step
Materials
- Small pumpkins
- Black marker
- Shallow bin or large container
- Water
- Construction paper
- Bamboo skewers
Instructions
- Prepare the pumpkins: Carefully cut the tops off the mini pumpkins and scoop out the seeds and pulp, leaving a pumpkin shell.
- Create the sails: Cut small triangle or curved sail shapes from black construction paper.
- Attach the sails: Carefully poke a bamboo skewer through each paper sail to create a little mast. Add the sail to the pumpkin boat.
- Make the ghost seeds: Give kids pumpkin seeds and have them use a black marker to draw tiny ghost faces on them.
- Fill the bin: Add water to a shallow container.
- Add the boats: Place the pumpkin boats in the water and let kids add their pumpkin seed ghosts for fun, imaginative play.
- Make predictions: Ask kids, “Do you think the whole pumpkin will float? What about the pumpkin halves?”
- Test the pumpkins: Place the whole pumpkins and pumpkin halves into the water. Observe which ones float and which ones sink.
- Add water to the boats: Have kids carefully add a little water to the hollow pumpkin boats. Test them again to see whether adding water changes their ability to float.
- Keep experimenting: Continue adding small amounts of water and observe when the boats become unstable or begin to sink.
- Discuss the results: Talk about what happened when the boats were empty compared with when they contained water. Encourage kids to explain why they think the boats behaved differently.
