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Cheska Lorena

Cheska Lorena's Public Library

Feb 05, 16

"Schematic outline of the human life cycle to show the role of meiosis, mitosis and fertilisation"

Feb 05, 16

"Making rock candy is a safe way to introduce students to solutions and crystal growth—and you can make it a tasty treat at the same time! This activity helps students visualize how a supersaturated solution grows the extra-large crystals of sucrose needed to make rock candy. Table sugar (sucrose) and water are the only required ingredients. Food coloring and flavoring are optional ingredients to enhance the taste of the candy. Using the instructions below, this activity can be completed at home or outside of the chemistry lab; it requires the use of food-grade materials and equipment."

Feb 03, 16

In the Weathering Instructional Case, students learn about how both chemical and mechanical weathering of rocks are important surficial processes. The “Essential Question” that students will address is: What makes large rocks change into small rocks? The overarching student development goal is for students to engage in constructive argument based on their data. This seven-day unit (which can be shortened) will bring students through several hands-on, easily-managed labs. After completing this instructional case, students will be able to define weathering and explain how rocks are changed by weathering. Students will also be able to distinguish between physical and chemical weathering and identify and name different agents of weathering.

Feb 03, 16

This Nature lesson discusses the processes of weathering and erosion and how they work together to shape the earth’s landscape.

Jan 28, 16

"Energy is the ability to do work, where work means moving something, lifting something, warming something, or lighting something. Where does this energy come from? How do people go about collecting it? How is it distributed? There are also many different forms of energy, including: fossil fuels, electricity, biomass, geothermal, hydro, nuclear, solar, and wind. This collection of Science NetLinks resources shines a light on the types of lessons, tools, and interactives available to help students understand energy."

Jan 26, 16

"A collection of activities to help students learn about stem cells and consider their potential in research and health.
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Jan 25, 16

"Since 1991, Modern Genetics for All Students has helped more than 39,000 high school students learn DNA basics in the biology lab. Active investigations include extracting and spooling DNA, engineering glow-in-the-dark bacteria, crossing strains of different-colored yeast, growing Wisconsin Fast Plants, and inducing mutations in bacteria using UV light. Modeling activities help conceptualize how genes code for proteins and how they are expressed, how DNA structure allows replication, and how traits and genetic diseases are inherited. Group discussions about genetic testing, GM foods and biotechnology highlight how advances in genetics are impacting society."

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