Sinking and Floating

Grade Level:

8

Subject:

Science

Start Date:

End Date:

Goal Summary:

Students investigate what sinks versus floats, and then conduct an experiment to determine which item will float or sink and why? and they will be able to predict what item will sink or float in before doing the experiment.

Standards Met:

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Essential Questions:

What is sinking? floating? Boyance?

Understandings:

This unit covers standard 5-PS2-1: Support an argument that the gravitational force exerted by Earth on objects is directed down. During the unit, students will investigate a variety of objects to see that the force of gravity is constant on Earth and pulls things down towards its center. We will also be investigating a variety of ways to overcome gravity.

Content Goals:

The goal of this lesson is for students to demonstrate an understanding of the experimentation process while identifying characteristics that affect buoyancy and gravity.

Skill Goals:

Students will demonstrate success on this lesson goal by working through the experiment steps independently and collecting data. They will also demonstrate mastery by explaining what characteristic of the boat helped buoyancy overcome the pull the gravity the longest.

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