American Museum of Natural History
What's This? Frozen Tissue
Take a peek into thousands of frozen samples. Learners try to identify an image of a piece of frozen tissue. After choosing the correct answer, scholars find out more information about the American Museum of Natural History's Frozen...
Curated OER
Ice Cream
Open this instructional activity by giving a brief history of ice cream. Using liquid nitrogen to lower the temperature, preteens make their own confection. The accompanying activity sheet queries learners about freezing point, the...
Curated OER
Maintaining Plant Genebanks
Young scholars examine the use, costs, and the need for plant gene banks. The rationale for gaining ownership over scientific information and the implications of the developing nations' reliance on biotechnology is explored in this lesson.
Curated OER
The Effects of Temperature on Solids
Students explore the effects that extreme temperatures have on the material properties of solids. They investigate the properties of a material whose state depends on extreme temperatures and witness how it interacts with room...
Curated OER
Heat of Vaporization of Liquid Nitrogen
Students determine the heat energy needed to vaporize (boil) one gram of liquid nitrogen.