![]() This activity permits students to consider was developed by NASA. PDF Click to download the solar pizza activity where students develop a scale model for the relative sizes of the Earth and Sun and the distance between them. In addition, students can record their observations over several days to observe the movement of sunspots due to the rotation of the Sun. Students can record observations and compare to current images from the Solar and Heliopsheric Observatory. Although they are a bit expensive, over $300, they are durable and many students can observe the sunspots at the same time. We use Sunspotter Solar Telescopes for safely observing sunspots. PDF Click to download the observation sheet for recording sunspots. Be sure to check out the video "Shadow Illusion" below. This is an excellent activity to integrate mathematics with science. Various spectrum tubes with different gases ( EISCO) and a power supply ( Elenco) are readily available online for less than $200.Ĭan We Measure the Diameter of the Sun? Word Document PDF In this activity, students use a pinhole camera to estimate the diameter of the Sun. If gas emission lamps are not available, the activity can be edited to only investigate the continuous spectra from an incandescent light bulb and mercury emission spectra from a normal fluorescent light. Word Document PDF In this activity, students investigate continuous spectra and emission spectra. 4 Click here to view a streaming lecture discussing the Hertzsprung-Russell diagram that is used to classify stars and illustrate the evolution of stars. 3 Click here to view a streaming lecture discussing the light (spectra) from the Sun and other stars. 2 Click here to view a streaming lecture discussing the source of the fusion energy in the Sun and the formation of heavier elements (nucleosynthesis). 1 Click here to view a streaming lecture covering the structure of the Sun and solar activitiy such as sunspots (~20 minutes) HTML Click to view the presentation in html format. Click to view or download the presentation in PDF (17 Mbytes). Click to download the MS Powerpoint file (52 Mbytes). Our Sun as a Star This unit investigates the structure and evolution of the Sun (and other stars) and the processes within stars that are responsible for their energy and the production of heavier elements. ![]()
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