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Nano Ice Cream
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In this activity/demo, learners discover how liquid nitrogen cools a creamy mixture at such a rapid rate that it precipitates super fine grained (nano) ice cream.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-335.png?itok=PEFclsMR)
Frozen Fruit
Source Institutions
In this "Sid the Science Kid" activity from Episode 108: My Ice Pops, learners observe reversible change while thinking about ways to make ice melt.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-841.png?itok=w0wZGZ6Y)
Atoms and Matter (K-2)
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In this activity, learners explore atoms as the smallest building blocks of matter. With adult help, learners start by dividing play dough in half, over and over again.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-821.jpg?itok=xhqdmOQS)
Bake Ice Cream in Your Oven
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In this a hands-on activity, learners explore how to put ice cream in an oven without it melting. Ideas in this activity include insulation and cooking.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-338.png?itok=-2fBVjG5)
Applesauce
Source Institutions
In this "Sid the Science Kid" activity from Episode 109: The Perfect Pancake, learners make applesauce to explore irreversible change.