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Nebula in a Jar
Source Institutions
In this activity, learners will build a model of a nebula using cotton balls and colored water. Astronomers photograph nebulas and add colors to provide information about the nebula's composition.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-506.jpg?itok=VzI1pBCZ)
Sound Dampeners
Source Institutions
In this activity, learners will experiment with water- and air-filled balloons as a way of dampening sound before it reaches their ears.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-501.jpg?itok=Xl4wCxfF)
Ice Fishing
Source Institutions
In this activity, learners will use string and salt to lift an ice cube out of a glass of water. Salt depresses the freezing point of water, allowing it to melt around the string and refreeze.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-527.jpg?itok=MkWcQswp)
Tie Dye Secret Messages
Source Institutions
In this activity, learners will write a secret message that only their friends will be able to read.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-505.jpg?itok=cy6vLclZ)
Decibel Cannon
Source Institutions
In this activity, learners will construct an air cannon as a model for the human ear.