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Will it Float?
Lesson Objective
The student will be able to identify if an object will float or sink.
Background Information for Teacher
Student Prior Knowledge
plastic spoon
bar of soap
Mr. Gumpy’s Outing
by John Burningham (This book can be found at your local library, or you can use the Youtube link we
have provided below)
Step-by-Step Guided Lesson
Step 1: Start Video
(Tips: Interact with the video by pausing, to ask questions or discuss information viewed with student.)
Step 2: Teach Lesson
Read Mr. Gumpy’s Outing.
Place the items on the table and have the student predict which will sink or float. Record findings on a chart.
Drop items one at a time in water. Observe what happens and mark results on the chart. Discuss why certain items floated and
others sank. Compare predicted results with what actually happened.
Explain to the student when objects sink or float, they push water away. When water is pushed aside we call it displacement. If the
amount of water pushed aside by an object weighs more than the object, the water can hold it up and it sinks.
If an object placed in the water pushes away an amount of water that weighs less than the object, the water can’t hold it up and it
Have the student complete the worksheet below for extra practice.

Step 3: Complete the worksheet attached below.
Worksheet for extra practice : If you have any of the objects on the worksheet at home, have the student try it to see if they sink or
float to help complete the worksheet.
Step 4: Review. Start the next lesson with the game or activity attached below for review so the student can demonstrate
understanding of this lesson before moving forward.
Tin Foil Boats (offline) project