ScienceFreePrintable
Plastilina Buoyancy Investigation
A free science worksheet ready for your classroom. Open in Kuraplan to grab the print-ready PDF, customize it for your students, or generate a fresh version in seconds.
Plastilina Buoyancy Investigation
🔬 Part 1: Buoyancy Knowledge
1. What happened when you first dropped your ball of plastilina into the water?
It floated on top
It sank to the bottom
It stayed in the middle
2. Which of these shapes helped your plastilina float? (Tick all that worked)
Flat pancake shape
Bowl or boat shape
Round ball shape
Long snake shape
3. Buoyancy is the force that helps things ___________ in water.
sink
float
dissolve
4. What happens to the water when you put an object in it?
The water level stays the same
The water gets pushed away (displaced)
The water disappears
✏️ Part 2: Investigation Observations
5. Describe the best shape you made to help your plastilina float:
6. Draw your favourite floating plastilina shape in the box below:
7. Why do you think changing the shape helped the plastilina float? Explain your thinking:
8. Complete this sentence: When I made my plastilina __________ and __________, it was more likely to float.
Hint: Think about size and shape!
🌊 Part 3: Prediction Challenge
9. If you had a piece of aluminium foil, how would you shape it to make it float?
10. Predict what would happen if you put small coins inside your floating plastilina boat:
It would still float the same way
It would sink because of the extra weight
It would float higher in the water
11. Name one thing from your home that floats and one that sinks:
Floats: ____________________
Sinks: ____________________
About This Worksheet
Free in Kuraplan
Sign up free, grab the PDF, and customize it for your class.
Print-Ready
Formatted for standard paper. Clean layout, easy to read.
AI-Generated
Created with Kuraplan's AI, designed for real classroom use.
For Teachers & Parents
Use in classrooms, for homework, tutoring, or homeschool.
Need a custom version of this worksheet?
Kuraplan's AI generates custom worksheets in seconds — differentiated for every learner, aligned to your curriculum.
Generate Custom Worksheets — Free No credit card Curriculum-aligned Under 60 seconds
More Science Worksheets
Year 5
Science Skills Review Worksheet
Free
Year 3
Year 3 Science Comprehension
Free
Year 6
Year 6 Science Exploration
Free
Year 9
Homeschool Science Worksheet
Free
Year 8
Earth Science Exploration Worksheet
Free
Year 8
Earth Science Question Worksheet
Free
Year 10
Soil Science Through Drama
Free