🎯 Objective
Make a prediction (hypothesis) and then test which items float and which items sink.
🧩 Materials
- A sink or bathtub filled with water
- Several water‑safe objects such as:
- Silverware
- Plastic toys
- Plastic bottle caps
- Legos
- Print out
- Instructors: help children choose a mix of items that will float and sink.
🔬 Procedure
- Prepare the Test Area:
Fill a sink or bathtub with water. Gather all the water‑resistant items. - Make a Hypothesis:
Before testing, guess which objects will float and which will sink. - Sort the Items:
Based on your guesses, divide the objects into two groups:- “Float” group
- “Sink” group
- Test Your Hypothesis:
Drop each object into the water one at a time.
Observe what happens — does it float or sink?
Record your results.
🧠 Reflection
- Were your guesses correct?
- What do the floating objects have in common?
- What do the sinking objects have in common?
- What might make an object float or sink?
