Salt 'n Lighter
Source Institutions
-
NOAA
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In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater. This resource explains the relationship between water density and salinity as well as how this phenomenon relates to water displacement. It also explains how large ships float on water and includes a chart of some famous historical ship sizes. This resource also includes the flood safety tip "Turn Around, Don't Drown."
- Under 5 minutes
- 5 to 10 minutes
- 1 cent - $1 per group of students
- Ages 6 - 14
- Activity, Demonstration, Lesson/Lesson Plan
- English
Quick Guide
Materials List (per group of students)
- 3 fresh eggs
- 3 - 1.5 liter beakers (or quart jars)
- 6 ounces of salt
Subjects
- Earth and Space Science
- Earth Processes
- Weather and Climate
- Earth Structure
- Oceans and Water
- Earth Processes
- Engineering and Technology
- Engineering
- Transportation Engineering
- Engineering
- Physical Sciences
- Chemistry
- Solutions
- States of Matter
- Liquids
- Structure and Properties of Matter
- Mass and Weight
- Volume and Density
- Chemistry
- The Nature of Science
- The Scientific Process
- Conducting Investigations
- The Scientific Process
Informal Categories
- Food and Cooking
- Nature and Environment
- Science Festivals Activity
- Transportation
Audience
To use this activity, learners need to:
- see
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
This resource is part of:
Access Rights:
- Free access
By:
Rights:
- All Rights Reserved, National Weather Service,
