Lesson Planet
Search educational resources
  • Sign In Try It Free
  • AI Teacher Tools
    • Discover Resources Search reviewed educational resources by keyword, subject, grade, type, and more
    • Curriculum Manager (My Content) Manage saved and uploaded resources and folders To Access the Curriculum Manager Sign In or Join Now
    • Browse Resource Directory Browse educational resources by subject and topic
    • Curriculum Calendar Explore curriculum resources by date
    • Lesson Planning Articles Timely and inspiring teaching ideas that you can apply in your classroom
    • Our Story
    • Frequently Asked Questions
    • Testimonials
    • Contact Us
  • Pricing
  • School Access
    • Your school or district can sign up for Lesson Planet — with no cost to teachers
      Learn More
  • Sign In
  • Try It Free

Hi, what do you want to do?

Create a lesson plan
Create a lesson plan
Generate resources with 80+ AI teacher tools
Generate resources with 80+ AI teacher tools
Search 200,000 instructional videos
Search 200,000 instructional videos
Find a teaching resource
Find a teaching resource
Sink or Float? Lesson PlanSink or Float? Lesson Plan
Publisher
Curated OER
Curator Rating
Educator Rating
Not yet Rated
Lesson Plan

Sink or Float?

Curated and Reviewed by Lesson Planet
This Sink or Float? lesson plan also includes:
  • Project
  • Join to access all included materials

Students predict and test different items to see if they sink or float. In this sink and float lesson plan, students predict whether an item is buoyant or not, and learn that size and weight do not matter when it comes to buoyancy.

33 Views 61 Downloads
Concepts

buoyancy, sinking and floating

Additional Tags

buoyancy, sink or float, size and weight, science
Show More Show Less

Resource Details

Grade
1st - 3rd
Subjects
Science
2 more...
Resource Type
Lesson Plans
Audience
For Teacher Use
Duration
1 hr
Instructional Strategies
Project-Based Learning
1 more...

See similar resources:

Lesson Plan

Sink/Float Discovery bottle

Curated OER
Investigate which items float and which ones sink using this resource.  Learners participate in an activity in which they investigate this phenomena. Then they describe the experimental process, and learn how to display their results.
K - 4th Science
Lesson Plan

The Magical Diving Sub

Curated OER
First graders discuss and predict if a given object sinks or floats. They record their predictions on a data sheet. Pupils test the objects and organize them into floating/sinking groups. Students observe the floating and sinking of a...
1st Science
PPT

Floating and Sinking - An Investigation

Curated OER
A simple and effective presentation could be helpful for your young scientists. Learners consider whether or not a piece of wood, glass, cork, brick, and ice will float or sink when placed in water. After the class has made their...
1st - 2nd Science
Lesson Plan

Sink or Float?

Curated OER
Students investigate whether different objects sink or float in water using the Scientific Method. They listen to the book "Christopher Columbus" by Stephen Krensky, identify the steps of the Scientific Method, conduct the sink or float...
K - 2nd Science
Lesson Plan

Sink or Float?

Curated OER
Have your class explore density and buoyancy using this resource. Learners read the book Who Sank the Boat, and use several items, such as rubber balls, bottle caps, wood, and other household items to conduct an experiment. Using a tub...
K - 2nd Science
Lesson Plan

Physical Science- Sink or Float?

Curated OER
Learners investigate which objects sink and which ones float. Learners engage in an experiment, make predictions, and record results on a graphic organizer. This is a comprehensive and easy to follow resource.
K - 2nd Science
Activity

Sink or Float?

US Department of Agriculture
Will it sink or will it float? Learners predict the outcome as they drop random objects into a container of water. Then, they keep track of the results and record the data in a t-chart to draw a final conclusion.
2nd - 3rd Science
CCSS: Adaptable
Lesson Plan

Making Predictions About Measurement

Curated OER
Upper graders experiment with measurement. They estimate the length, volume, and weight of various objects, then rotate through stations making predictions concerning measurements and then testing their predictions.
3rd - 5th Math
Lesson Plan

How to Float an Egg

Curated OER
Use the scientific method to experiment with an egg. Your class can examine buoyancy and density by finding how many spoons of salt are needed to float an egg. They can predict, experiment, record data, and analyze results.
3rd - 4th Science
Lesson Plan

Sink It

Curated OER
Introduce your class to the concept of sinking and floating. In groups, they classify objects after making predictions about which materials will sink or float. They record their results and create graphs and charts to share with the class.
3rd - 5th Science
Try It Free
© 1999-2026 Learning Explorer, Inc.
Teacher Lesson Plans, Worksheets and Resources

Sign up for the Lesson Planet Monthly Newsletter

Open Educational Resources (OER)

  • Health
  • Language Arts
  • Languages
  • Math
  • Physical Education
  • Science
  • Social Studies
  • Special Education
  • Visual and Performing Arts
View All Lesson Plans

Discover Resources

  • Our Review Process
  • How it Works
  • How to Search
  • Create a Collection

Manage Curriculum

  • Edit a Collection
  • Assign to Students
  • Manage My Content
Contact Us Site Map Privacy Policy Terms of Use