US Department of Agriculture
Sink or Float?
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.
University of Southern Indiana
Manifest Density
There's a lot content packed into the four lessons of this physical science unit on density. From salad dressing to the water cycle and hot air balloons, these lessons engage students in hands-on activities that explore real-world...
Center for Learning in Action
Density
Explore the concept of density within states of matter—gases, liquids, and solids—through a group experiment in which young scientists test objects' texture, color, weight, size, and ability to sink or float.
CK-12 Foundation
Going Fishing
Why do some things float and others sink? A creative simulation allows learners to adjust mass and volume of an object to affect its buoyancy in water. A graph records the effect of each manipulation.
Center for Learning in Action
Properties of Balls
Enhance your states of matter lessons with a hands-on science investigation that compares six different balls' color, texture, size, weight, ability to bounce, and buoyancy.
US Environmental Protection Agency
Thirstin's Wacky Water Adventure
Make a splash with young scientists as you teach them all about water using this activity packet. Thirstin, a cartoon glass of water, walks children through the water treatment process, teaches them about different sources of water, and...
Science Education Resource Center at Carleton College
Serc: Investigating Density in Solutions: How Can You Make an Egg Float?
In this activity, students will learn about density by determining how to make an egg float in water. By the end of the lesson plan, students will understand that density and weight are different and that density matters in floatation....
PBS
Pbs Learning Media: Sesame Street: Sink or Float Educator Guide
This is an educator's guide for a unit on things that sink or float. It includes lesson plans, experiments, and activities. Learners apply the scientific method as they investigate whether objects sink or float.
American Chemical Society
Middle School Chemistry: Chapter 3: Density
Six interactive chemistry lessons about density complete with handouts and animations.