Grade Range
5th-8th
Active Time
40 minutes
Total Time
40 minutes
Area of Science
Physics
Key Concepts
buoyancy, forces, density
Credits

Overview

SCUBA diver

"Diver and Lemon shark" © 2004 Hpm~commonswiki

What helps SCUBA divers, sharks, fish, and other marine organisms stay in the water column? In this hands-on investigation, students will explore the concepts of buoyancy and mass to create a device to help an action figure stay neutrally buoyant, just like a scuba diver.

NGSS Alignment

This lesson helps students prepare for these Next Generation Science Standards Performance Expectations:
  • MS-PS2-2. Plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object.
This lesson focuses on these aspects of NGSS Three Dimensional Learning:

Science & Engineering Practices Disciplinary Core Ideas Crosscutting Concepts
Developing and Using Models. Develop and revise a model to show the relationships among variables, including those that are not observable but predict observable phenomena.

Constructing Explanations and Designing Solutions. Collect data about the performance of a proposed object, tool, process, or system under a range of conditions.
PS2.A: Forces and Motion. The motion of an object is determined by the sum of the forces acting on it; if the total force on the object is not zero, its motion will change. The greater the mass of the object, the greater the force needed to achieve the same change in motion. For any given object, a larger force causes a larger change in motion.
Cause and Effect. Cause and effect relationships may be used to predict phenomena in natural or designed systems.

Scale, Proportion, and Quantity. Proportional relationships among different types of quantities provide information about the magnitude of properties and processes.

Structure and Function. Structures can be designed to serve particular functions by taking into account properties of different materials, and how materials can be shaped and used.

Reviews

|
Science Buddies |
Was this review helpful?
Be the first one to review this lesson plan.
Grade Range
5th-8th
Active Time
40 minutes
Total Time
40 minutes
Area of Science
Physics
Key Concepts
buoyancy, forces, density
Credits
Free science fair projects.