Activity
Science Education Resource Center at Carleton College

Serc: Is All Ice Created Equal? A Density Lab

For Teachers 9th - 10th
A lab experiment that shows students that different molecules melt in different ways. This lab also allows students to practice calculating and finding density, mass, and volume. Lesson plan includes lab handout for students.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Investigating the Effects of Density and Volume of a Cartesian Diver

For Teachers 3rd - 5th
In this lesson, young scholars will investigate why the Cartesian diver dives and rises in a 2 liter bottle. They will also, through their own discovery, come up with a question and then change one variable and record their results....
Interactive
American Museum of Natural History

American Museum of Natural History: O Logy: Stuff to Do: Density of Salty Water

For Students 3rd - 5th
An experiment to test what happens when ocean water hits a freshwater estuary. Each step is demonstrated with photographs and the difference between salinity and density is explained.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Exploring the Properties of Liquids, With an Emphasis on Density

For Teachers Pre-K - 1st
Students experiment with liquids; comparing and contrasting, and creating a density tower leading to a beginning understanding of density.
Lesson Plan
National Association of Geoscience Teachers

Nagt: Density Mystery Canisters

For Teachers 4th - 6th
Students experiment with items that sink or float, and learn that water's density is equal to one, and objects/solutions with a density greater than one will sink, and those with a density less than one will float.
Interactive
Chemistry Collective

Chem Collective: Metals Density Problem

For Teachers 9th - 10th
In this activity, students use the virtual lab to identify three unknown metals by measuring their density and comparing their measurements to the densities of known metals. In this randomized version, each student designs and performs...
Interactive
Chemistry Collective

Chem Collective: Identifying an Unknown Liquid From Its Density

For Students 9th - 10th
In this activity, students use the virtual lab to design an experiment to determine the identity of mislabeled bottles using the densities of the solutions inside.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Determining Bulk Density of Different Soil Samples and Data Analysis

For Teachers 9th - 10th
A field based lab experiment where young scholars work in groups to come up with a collection strategy and lab analysis to test differences in soil bulk densities. Students bring soil samples back to the classroom to conduct a test that...
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Investigating Buoyancy, Density, and Fluid Principles: Make Mini Submarine

For Teachers 9th - 10th
In this lab, students will use the scientific method to design an experiment that explains how/why a submarine floats and sinks.
Activity
Sophia Learning

Sophia: Physics: Bill Nye: Eggs Speriment

For Students 9th - 10th
Created to teach students of the 21st century, SOPHIA is bringing science straight to your fingertips. Become the commander of your own learning experiences as you take part in this density experiment.
Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: Comparing Densities of Different Liquids

For Teachers 4th - 8th
This lab experiment has students observe and compare the density of five different liquids while measuring mass and volume.
Activity
PBS

Pbs Teachers: Hot Air Balloon Experiment

For Students Pre-K - 1st
Explore how heat affects the density of air by building and flying a hot air balloon using large plastic bags and the hot air from an electric hairdryer.
Activity
PBS

Pbs Teachers: Hot and Cold Water Experiment

For Students Pre-K - 1st
Demonstrate the relationship between water temperature and density using two clear plastic soda bottles.
Activity
Hunkins Experiments

Hunkin's Experiments: See if a Ring Is Pure Gold

For Students 9th - 10th
Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This one...
Activity
Science Education Resource Center at Carleton College

Serc: Layering Liquids

For Teachers 3rd - 5th
A lab activity to show students how different densities of liquid layer on top of each other by using four different colored liquids that contain different levels of salinity. This activity can also be used in an ocean unit where...
Activity
Science Education Resource Center at Carleton College

Serc: Irregular Shaped Object Lab Test

For Teachers 9th - 10th
Students will determine what an unknown substance is by finding mass, volume, displacement, and density of an object. Students will also create a report which will require them to read a graph, interpret data, calculate averages, and...
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Mn Step: The Great Egg Drop: Relationship Between Gravity, Mass and Density

For Teachers 6th - 8th
An interesting experiment in the relationship between gravity, density, and mass. Students must devise a way to drop a milk carton containing two raw eggs off a roof 50 feet high, without breaking the eggs. They then write a scientific...
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Mn Step: Sink or Float: All Liquids Do Not Have the Same Density

For Teachers K - 1st
An experiment in density. After a review of floating and sinking of different materials, students test four bottles, all holding four ounces of water, to see if they will float or sink. They each contain a different density of sugar...
Activity
Scholastic

Scholastic: Dirtmeister's Science Lab: That Sinking Feeling

For Teachers 6th - 8th
Simple experiments dealing with water temperature and density that you can complete in the lab and at home.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Mn Step: Sinking and Floating Water

For Teachers 3rd - 5th
An experiment in density where colored water, both hot and cold, are poured into containers of water at room temperature. Students will observe that the warm water rises and the cold water sinks due to their different densities.
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Mn Step: Sinking Water: Glaciers, Ocean Currents and Weather Patterns

For Teachers 3rd - 5th
A lesson where students learn how warm water is less dense than cold water, and what this means for global climate change as ice from the polar regions melts. Students will do experiments in buoyancy and water density when hot or cold,...
Activity
Science is Fun

Fun Science: Sinking and Floating Soda Cans

For Students 9th - 10th
Why do some pop cans float in water while others don't? This easy experiment is a great example of the principle of density.
Activity
Science is Fun

Science Is Fun: Bowling Balls Float or Sink?

For Students 6th - 8th
In this experiment, you test whether two different bowling balls will float or sink, then determine the density of each of the balls to see if they are less than that of water.
Activity
SEDL

Oceans [Pdf]

For Teachers 3rd - 8th
This large PDF file integrates math, science, and language into several lessons about characteristics of the oceans. Topics include ocean currents, tides, density, marine life, and pollution.

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