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
Heat of Vaporization of Liquid Nitrogen
Students determine the heat energy needed to vaporize (boil) one gram of liquid nitrogen.
Curated OER
Biogeochemical Cycles Study Guide
The four cycles in Earth's biogeochemical system are covered in this worksheet. Science stars fill in the blanks or define vocabulary terms pertaining to the hydrologic, carbon, nitrogen, and phosphorous cycles. This resource provides a...
Colorado State University
Can Boiling Make Something Freeze?
Use boiling as an avenue for freezing. Young scholars watch as liquid nitrogen removes heat from the ingredients for ice cream. As this happens, the nitrogen boils and the ice cream freezes—all in the same container. A little science magic!
Curated OER
Demonstration of Ideal Gas Law
You know that liquid nitrogen turns into a gas at room temperature. Place some in a two-liter bottle for a physics demonstration of the ideal gas law. Beware, however; this is a dangerous demonstration! Not to mention that you may not...
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
States of Matter
Fourth graders define the term matter. They compare properties of solids, liquids, and gases. They describe how matter changes from one state to another. They classify objects as either solid, liquid, or gas.
Curated OER
Hot Air Balloons
Students examine how a hot air balloon works. In this hot air balloon lesson, students do an experiment to test the effects of heat on density. Students make their own hot air balloon and act out how nitrogen moves when turned to a liquid.
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
Chemical Ideas 7.6 - Chromatography
Thin-layer and gas-liquid chromatography are introduced in an intelligible presentation. Paper chromatography is also listed as another type of chromatography, but it is not explained. If you are particular about appearances, there are...
Curated OER
PV=nRT=Bang!
In this ideal gas law worksheet, high schoolers watch a demonstration using liquid nitrogen, a plastic 2 liter bottle and a garbage can of water that excites students to use the ideal gas law to solve problems. High schoolers analyze the...
Curated OER
Water Balance & Nitrogenous Waste Removal
Examine the structures of the kidney and then define the functions of the specialised structures. Every will find this powerpoint engaging, many of the images will present facts such as osmolarity of interstitial fluid and the negative...
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
Solutions and Suspensions
Learners explore matter by conducting an in class demonstration. In this liquid mixture lesson, students identify the difference between a solution in which a solid dissolves into liquid, and a suspension where the solid doesn't dissolve...
Curated OER
Waterproof Paper
Students explore matter through the concept of displacement. They perforrm an inquiry experiment with a glass, paper and a bucket to demonstrate that gases take up space.
American Chemical Society
Air, It's Really There
Love is in the air? Wrong — nitrogen, oxygen, and carbon dioxide are in the air. The final lesson in the series of five covers the impact of temperature on gases. Scholars view a demonstration of gas as a type of matter before performing...
Curated OER
Name That Gas!
Young scientists discover that air is a mixture of different gases - mainly nitrogen and oxygen. The properties of some of the other gases found in oxygen are listed in a table, then learners must decide which one of those gases is...
Curated OER
Inquiry into Consumer Products
Students recognize different consumer products, found in and around the home, that have reactive or denaturing properties when used together. They explore chemical and physical properties of each product by identifying chemical formulas...
US Environmental Protection Agency
Role of Plants in Water Filtration
Investigate the amazing ability of plants to filter contaminants from water with this series of in-class demonstrations. After placing six small, potted plants in plastic cups, different solutions and mixtures are poured into them that...
Curated OER
Activity #8 Which State Are You In?
Students define, give similarites and differences between solids, liquids, and gases. They compare and contrast a solid, liquid and gas in terms of shape, volume, compressibility, diffusion and density. Pupils classigy common...
Curated OER
Liquid Crystal IR Detector
Students experiment with one method of detecting infrared radiation. They simulate the detection of infrared radiation using a liquid crystal sheet.
Curated OER
Chromatography
Advanced techniques for the lab use of chromatography are detailed here and your students will learn the specifics of separating molecules using a staionary and mobile medium. Diagrams of the equipment used and some facts about how...
Curated OER
Biochemical Cycles
When learning about several different processes at a time, it can be difficult to differentiate between them. In the resource found here, you can see what your kids know about some of Earth's systems including the carbon, hydrologic,...
Curated OER
Periodic Table Puzzle
In this chemistry learning exercise, students use the clues given at the bottom of the sheet to solve the crossword puzzle on the Periodic Table. They describe the number of protons and electrons some elements posses, as well as identify...