In this activity, students create a scale model depicting the vertical distance from Earth’s surface to various features and objects, including Earth’s atmospheric layers, the Van Allen Radiation Belts, and geocentric satellites. Students also... (View More) compare the vertical distances to these features and objects with distances from their classroom to other common points on the ground. Includes background science information; student reading, handouts and worksheet; teacher information; and suggested extensions and adaptations for students with vision impairment. (View Less)

This is an activity about scale. Participants will arrange imagery of Earth and many other space objects in order of their size from smallest to largest, their distance from Earth's surface, their temperature from coolest to hottest, and/or their... (View More) age from youngest to oldest. By manipulating these images and discussing their ideas, children and adults represent and confront their own mental models of space and time. (View Less)

This is a lesson about the electromagnetic spectrum. Learners begin by arranging a set of picture cards; in the discussion afterwards, this activity is related to the electromagnetic spectrum as an arrangement of energy waves. Next, using a... (View More) clothesline to model a logarithmic scale, they add in the electromagnetic spectrum. Finally, learners conduct several simple tests to detect other types of radiation. This activity requires access to a sunny outdoor location and the use of ultraviolet light-sensitive beads. (View Less)

This is an activity about perspective. Learners will examine pictures of objects up close and far away to try and figure out what they are. Then, given an image of a star and the Sun and through discussion about the differences and similarities of... (View More) seeing objects up close, learners will use the concept of perspective to relate our nearby Sun to the stars that appear as small points of light in our sky. (View Less)

Learners will construct a pinhole camera and, using the projected image of the Sun, calculate its diameter. After calculating the diameter of the Sun, learners will create a classroom sized scale model of the Sun and Earth. This activity requires... (View More) use of a sunny outdoor location to be able to use the pinhole cameras. (View Less)

This is an activity about the period of the Sun’s rotation. Learners will select images of the Sun from the SOHO spacecraft image archive. Next, they will calculate an image scale for the selected solar images. Then, they will use it to help... (View More) determine the actual speed of sunspots based on measurements of their motion in the selected Sun images and, finally, determine the period of the Sun's rotation. This activity requires access to the internet to obtain images from the SOHO image archive. This is Activity 3 of the Space Weather Forecast curriculum. (View Less)

This is an activity about shadows and how the Sun's location affects the direction of a shadow. Learners will first identify what they already know about shadows and will be asked to share any questions they may have. Then students will be taken... (View More) outside to observe and trace a classmates shadow. From this tracing, students will complete a worksheet by drawing their partner, his or her shadow, and the location of the Sun. Two to three hours later, this observation and tracing process will be repeated, allowing students to witness the movement of shadows as a result of the Earth's rotation. This activity requires a sunny day with plenty of outdoor space to trace the shadows of all students. This is Activity 4 of a larger resource entitled Eye on the Sky. (View Less)

This is an activity about the size and scale of the Sun-Earth system. Learners will take an imaginary trip to the Sun by comparing images of the Sun and Earth at different points in altitude above the Earth. This is to ultimately conceptualize the... (View More) spherical shape of the Earth, which is key to understanding the cause of the seasons. They will then produce a scale model of the Sun and Earth to reinforce the idea that the distance to the Sun is enormous compared with the size of the Earth. Finally, learners reflect on Question 3 of the Sun-Earth Survey, which is the prior activity in this set. This is Activity 3 in the Great Explorations in Math and Science (GEMS) guide titled Real Reasons for Seasons: Sun-Earth Connections. An additional related activity, entitled Scale Models of the Earth-Moon System and the Solar System, is included in the CD-ROM enclosed with the resource guide. The resource guide is available for purchase from the Lawrence Hall of Science. This activity recommends use of an overhead projector, and requires use of a small scale model toy, such as a car or any other toy made to scale, and a rigid globe or large ball like a soccer ball or basketball. (View Less)