Curated OER
Make a Shadow Clock
Students create a shadow clock. In this time lesson, students make their own shadow clock or sundial from tag board. They place it on the ground and check it every hour to mark where the shadow lies.
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Light and Shadows
Students observe and record the apperacne of shadows and how their position and shpae changes during the course of the day. Students measure and record the length oof a partner's shadow at different intervals during the day. In pairs,...
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Shadows and Skyscrapers
Eighth graders explain the relationship between the position of the sun, a city's latitude and shadow length. Ratio's, geometry, and algebra are used to determine the shadow lengths and building heights. A sun angle (altitude) charts to...
Curated OER
Sundials: Observing and Using Shadows
Students build sundials and observe changes in shadows over the course of one or more days. They identify patterns in the shadows and discuss how shadows may be used to tell time.
Curated OER
What Makes Shadows? Observing and Drawing Shadows
Students make accurate drawings of a classmate's shadow. They note position of the sun in the sky. They identify a connection between the direction of the shadow and the location of the sun. They observe changes in shadows over time.
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A Shadow of Yourself
Young scholars measure the length of their shadows three times during the day, Students determine the differences in shadow lengths after each measurement. They discuss why the length changed from one time of day to another.
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Light
Here is a stellar slide show for illuminating middle schoolers' minds on the topic of light! An interactive slide allows viewers to sort light sources by whether or not they are man-made. More objects are displayed and learners discover...
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May Earth be Revolving around the Sun?
Ninth graders explore how Aristarchus used the position of the half-full Moon to estimate the distance to the Sun, and how he made a great error, but still figured out that the Sun is much larger than Earth.
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Learning Lesson: The Shadow Knows II
Students discover and practice how to calculate the circumference of the Earth. They measure the length of their shadows and use the distance they are away from the equator to complete the calculations. They discuss winter or summer...
Illustrative Mathematics
Tilt of Earth's Axis and the Four Seasons
Geometry meets earth science as high schoolers investigate the cause and features of the four seasons. The effects of Earth's axis tilt features prominently, along with both the rotation of the earth about the axis and its orbit...
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Orientation of the Earth in Space
Students hypothesize the location of the sun in the sky at diferent times of day and at different latitudes. They perform several experiments to provide evidence for their hypothesis. Experiments including observing the sun's position at...
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Sundials
Students investigate the different types of sundials and their history. In this shadows and time of day lesson students build their own sundials.
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Sun Path: Interactive On-line Mac or PC
Students use SunPath in the yearly mode to investigate seasonal changes in sunrise, sunset, length of day and sun altitude at their own latitude. Sun Path JAVA applet uses equations for a spherical Earth to calculate the sunrise and...
Curated OER
Cubes-IV
Students examine the relationship between three dimensions and two dimensions by working with shadows of cubes and other models. Students work in groups and use Zome System Creator Kits to try and build a shape other than a cube that...
Curated OER
Sun Shadow Cycles
Students use diagrams to review how the Earth rotates around the sun. In groups, they use the same diagrams to explain how the sun shadows are produced and how they differ between seasons. They describe the Earth's rotation and...
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Eclipse: Using a Classroom Model to Explore the Moon's Shadow
Students manipulate and observe a 3-D model which simulates the activity of the Sun, Earth and Moon during a solar eclipse.
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Time
Learners make a sundial. In this time lesson, students determine the time of the day by creating a sundial. They check the time on the sundial, hourly, for one week. Afterward, they explore what happened to the shadows in reference to...
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Solar/Lunar Eclipses and the Seasons
How do the moon, sun, and Earth line up to create eclipses? Why do the seasons change throughout a year? The answers to these questions are explained through this series of slides. This apt presentation outlines information using bullet...
Star Date
Modeling the Night Sky
Dramatize the stars and planets as they become a visual representation of the solar system in this activity. Young astronomers track and simulate various constellations as they orbit the Earth to learn the position and motion of...
Curated OER
Astronomy With a Stick
Students find the altitude of the Sun at 10 A.M., at solar noon, and at 2 P.M. by measuring the height of the gnomon and the length of the shadow at each time. They record the measurements in their notebooks for later conversion.
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Toilet Plunger Sundial
Pupils build a sundial to measure the local noon time. In this third grade science lesson, students build a sundial out of common materials and align to measure the local noon. This lesson is a hands-on tracking of the sun, and allows...
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May The Earth Be Revolving Around The Sun?
Students trace the beginning of the heliocentric theory of the solar system--the idea that the solar system revolves around the Sun--to an observation by the Greek astronomer Aristarchus, which convinced him that the Sun was much bigger...
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Portable Sundial
Students work together to identify the accuracy of sundials. They track the position of the sun and create a shadow plot. They discover the difference between real time and clock time.
