For this variables and expressions worksheet, students solve 7 problems using different mathematical formulae to find the length of Earth's day in the future, the distance to the galaxy Andromeda, the temperature of a gas cloud emitting...

In this fractions in chemistry worksheet, learners solve 2 problems where they state all the answers as simple fractions or integers. They determine ratios of molecules in gasoline and they find ratio of molecules in the creation of...

In this atmospheric carbon dioxide activity, students observe a map showing the concentrations of atmospheric carbon dioxide taken by the Atmospheric Infrared Sounder instrument. Students solve 4 problems using the map. They determine...

Students write a diary entry from the perspective of someone who was affected by the Hindenburg explosion. In this Hindenburg lesson plan, students learn the history behind the explosion, discuss the reactions of people, and discuss...

Students examine soil. In this soil composition lesson students participate in soil sedimentation and filtration activities. The students discuss what non-living and living things are in soil and why it is so important.

Students conduct various experiments to investigate plant transpiration. In this biology lesson, students explain how this process helps maintain the hydrologic cycle. They measure the rate of water loss in plants using a potometer.

Students explore the Chernobyl incident and the resulting environmental health impacts. They explore three different isotopes that were released into the atmosphere. Through inquiry, students determine the difference between types of...

Students investigate climate changes by graphing and analyzing ice core data from Greenland and Antarctica. They create, explain and report the pattern of data on a graph of ice core data. In addition they find relationships between the...

Students explain the impact of glacial melting to global climate change. In this environmental science lesson plan, students design an experiment to investigate the effect of salinity change to melting glaciers. They share their results...

An air mass forms when the air over a large region of Earth sits in one place for many days. The air gradually takes on the characteristics of the land or water below it. Where Earth's surface is cold, the air becomes cold. Where Earth's...

What are air masses and where do they originate? What happens to the weather along fronts? Learn about warm and cold fronts and different types of advection. Maps and animated illustrations make these topics easier to comprehend.

A video and a short multiple-choice quiz on the topic of air masses and fronts. It describes the types of weather fronts, what an air mass is, and the four types of air masses in the US.

[Free Registration/Login may be required to access all resource tools.] Air masses greatly influence the the weather in a location.

[Free Registration/Login may be required to access all resource tools.] Air masses greatly influence the the weather in a location.

Get a quick overview of air masses and their movement.

This Oklahoma Climatological Survey explores how air masses form, as well as the weather formations, which tend to appear on the edges of these masses in what is known as a front.

Describes the different types of fronts and the dry line associated with certain fronts. Well illustrated with diagrams and maps.

Work samples, phenomena, assessment templates, and videos that directly address standard MS-ESS2-5: interacting air masses and weather.

Students are introduced to air masses, with an emphasis on the differences between and characteristics of high - versus low-pressure air systems. Students also hear about weather forecasting instrumentation and how engineers work to...

A very detailed description of air masses, how they move and interact, and what weather takes place when this happens.

Investigation shows that gas takes up space and has mass, and that the motion of gas molecules is affected by heating and cooling.

Why do hot air balloons float? This resource from the NOVA Web site offers a series of interactive activities that illustrates the physics of hot air balloons.

By watching and performing several simple experiments, students develop an understanding of the properties of air: it has mass, it takes up space, it can move, it exerts pressure, it can do work.

It's difficult at times for younger young scholars to realize that air has mass. Matter is something that has volume (takes up space) and has mass (*can be weighed). Air does take up space, even if we can't see it, and air has weight,...