Students discuss how different objects are different sizes. They work together to brainstorm ideas of objects that do not stay big or little all of the time. They choose one of their ideas to illustrate and share with the class.

Third graders examine the power of solar energy. In groups, they create their own pizza box solar oven to discover the power of the sun and how it is a source for heat and light. To end the lesson, they use the internet to examine...

High schoolers construct various types of paper airplanes, exploring action and reaction forces by conducting a paper airplane rodeo. Students then discuss how Newton's Third Law of Motion affected their planes.

Students make group decisions about matter as they explore and interpret many types.

First graders observe while water is absorbed into a sponge. They experiment by putting a sponge on yardstick and watch while water dries and the weight changes.

In this prefix worksheet, students use word clues to solve a crossword puzzle. Prefixes of words in puzzle are given, and students complete the words using the clues.

In this prefix worksheet, students complete the crossword puzzle for words that have prefixes. Students solve the clues to complete the crossword.

In this sentence order worksheet, students read the sentence examples in each box. Students order the sentences and write the sentence letters in order. Students complete 5 examples.

Students describe the motion of solids, liquids and gases. In this chemistry activity, students describe how temperature affect motion of the particles. They determine the physical properties of each phase.

Eighth graders distinguish between physical and chemical change. In this chemistry activity, 8th graders observe a series of demonstrations showing physical and chemical changes. They identify the signs that a chemical reaction took place.

A book about a hot air balloon festival. Includes audio narration in 15 additional languages with text in English.

In this science fair project, students will make hot-air balloons using a toaster and dry-cleaning bags, and see how the size of the balloon affects its flight. The Science Buddies project ideas are set up consistently beginning with an...

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.

Step-by-step instructions, with photos, of how to construct a hot-air balloon from tissue paper, to demonstrate that heated air expands, creating a convection current. This activity requires the use of a hot air gun and is labor-intensive.

[Free Registration/Login Required] Learn about Newton's 2nd Law - the relationship between force, mass, and acceleration for a hot air balloon using this interactive simulation. A PDF worksheet and a video tutorial are also available....

What role did hot air balloons play in the Civil War? This comprehensive article answers that question and gives specific examples of their use by both the Union and Confederate troops.

Did you know that the hot-air balloon is the oldest form of successful human flight? Briefly described is the history and construction of hot-air balloons. Follow the link to "images of hot-air balloons and balloon racing" to view...

Covers the birth of the hot air balloon in 1783 with details on improvements to the modern day balloon.

Students design, build, and then test hot air balloon designs. The activity concludes with flight testing the balloons and then a review of the design features of all balloons for the most advantageous design features.

[Free Registration/Login Required] This first person account describes a hot air balloon trip. This passage is a stand-alone curricular piece that reinforces essential reading skills and strategies and establishes scaffolding for...

Pictures of hot air balloons in the Civil War and a brief explantation of their use.

Experiment with a helium balloon, a hot air balloon, or a rigid sphere filled with different gases. Discover what makes some balloons float and others sink.

In a five-step challenge, this exercise involves identifying hot air balloon artists by their work and name. Once you guess the correct balloon by the artist, you advance to the next level.

In this computer-based virtual lab, students will learn about the layers of Earth's atmosphere by launching virtual balloons to collect temperature and pressure data at various altitudes. Given a limited number of balloon flights,...