Source Institutions
Source Institutions
Add to list Go to activity
Activity link broken? See if it's at the internet archive
![](/sites/default/files/styles/square250/public/resource_images/smile-000-000-001-884.gif?itok=NoNtBlrE)
Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle. Learners will also investigate how a liquid's density affects objects that are put into it. This experiment connects with estuary environments (habitats where fresh water and ocean water mix) and also contains a brief discussion of one of the saltiest seas on earth, the Dead Sea in the Middle East.
- Under 5 minutes
- 10 to 30 minutes
- $1 - $5 per group of students
- Ages 8 - 18
- Activity, Experiment/Lab Activity, Simulation
- English
Quick Guide
Materials List (per group of students)
- a pitcher
- a long spoon
- 3 drinking glasses (all the same size)
- warm water
- table salt
- a spoon
- blue and red food coloring
- 2 identical soda bottles with a regular neck (not wide)
- an unsharpened pencil
- a funnel (that fits inside the top of the soda bottle)
- a ruler
Subjects
-
Earth and Space Science
-
Earth Structure
- Oceans and Water
-
Earth Structure
-
Life Sciences
-
Ecology
- Ecosystems
-
Ecology
-
Physical Sciences
-
Chemistry
- Solutions
-
States of Matter
- Liquids
-
Structure and Properties of Matter
- Volume and Density
-
Chemistry
Audience
To use this activity, learners need to:
- see
- see color
- read
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
Components that are part of this resource:
This resource is part of:
Access Rights:
- Free access
By:
Source Collection
- Ology
Rights:
- All rights reserved, American Museum of Natural History,