How can you launch an object that isn't propelled by air? The resource provides directions to build a launcher to launch rockets made of two-liter bottles. The launcher, built mainly from materials found at the local hardware...

Getting water to a tap requires an understanding the fundamentals of fluid flow. Groups design, build, and test a piping system to get water from the source — a five gallon bucket — to a tippy tap. The objective is to be able to...

How much water does your body lose during exercise? How much should you hydrate during and after exercise? Address the importance of hydration with your young athletes using this informative handout.

Aqua regia, or royal water in Latin, is a solvent that can dissolve solid gold and platinum into a solution. Activity nine in a series of 36 allows classes to learn, through readings and answering questions, what a solution is and the...

Sixth in a series of 36, this lesson focuses on gases and their behavior in given situations. Learners review the states of matter and then focus on gases, specifically learning Boyle's, Charles's, Avogadro's Laws, Dalton's, and Graham's...

In the summer of 1815, snow fell every month in New England. Was this related to the volcanic eruption of Tambora in Indonesia earlier in the year? Young scientists design their own experiments to research the long-term effect a volcanic...

Due to surface tension, dew — a liquid, is spherical in shape. Learners explore the properties of liquids in activity seven in this series of 36. Beginning with its basic properties such as boiling point and moving through to surface...

Did the image I drew match the image you saw? By simulating a satellite and a ground station, teams of two transmit data in the form of pixels in order to recreate an image. They use four different levels of brightness, creating slightly...

Basic information about the role of vapor pressure in the garden. In addition, a free garden simulator can be downloaded in which various quantities can be measured.

This resource provides a description of oxygen solubility in water as it relates to temperature and pressure with introductory definitions and sample data to analyze. Animations require Shockwave plugin.

A wonderfully complete primer on exothermic reactions in the context of chemical spills. Covers Reactions with Air or Water, Combustible Organics, Polymerization Reax, Decomposition, Corrosion, and much much more.

This site gives a good explanation of osmosis and reverse osmosis. Also includes a scientific diagram of the process.

Provides an overview of osmosis and tonicity and looks at how osmosis works, as well as the role it plays in the water balance of cells. Describes hypertonic, isotonic, and hypotonic solutions and their effect on cells.

This site provides a basic definition of reverse osmosis, with a bit of a slant on why water pretreatment is important.

This site provides an extensive amount of weather information. Includes current information, forecasting, and historic weather related events. Weather map symbols and terminology explained.

This definition and explanation osmosis shows how water diffuses from regions where it is in high concentration to regions where it is in low concentration.

Brief text summary of what students learn in the Diffusion across a Selectively Permeable Membrane lab, along with links to download Student Handouts and Teacher Preparation Notes in PDF or Word formats. Main teaching points include...

Great activity with clear background information. Try out the lab using osmosis to calculate molecular weight.

An exhaustive set of "lecture notes" on various topics in thermal physics (including thermal expansion). Explanations are well done and more interesting than most. Includes both a mathematical and conceptual treatment of topics. Humor,...

Learn about the atmosphere, it's make-up, the layers, the hydrologic cycle and more. The National Weather Service presents this site, including learning lessons and review questions.

The question: "What would the triple point of water truly look like?" is discussed and explained. The phases of matter are described.

This downloadable article addresses all aspects of nuclear energy. Visual charts make understanding of cycles and concepts easier. Most useful for older students and educators. PDF (requires Adobe Reader).

This essay is complemented by useful illustrations of how plant cells enlarge after mitosis and become specialized for different functions. A good supplement to plant growth studies.

Describes what dew point is and how it relates to moisture content of the air. Also explains condensation and relative humidity.