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)

This is an activity about the size of the Sun. 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... (View More) of the Sun and Earth. This activity requires 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 Hubble Deep Field image, an observation of one small area of sky that contained no previously-detected objects. The long time exposure of this image allows us to detect some of the most distant objects seen in our... (View More) Universe. Learners will view an image of the Hubble Deep Field and identify how many distant galaxies are visible as well as the types of galaxies they might be. Observations will be taken a step further to infer predominant age of a galaxy and determine if there are any trends in age (color) versus galaxy size or type and, ultimately, if the distant Universe appears relatively uniform. This activity is Astronomy Activity 4 in a larger resource, titled "Space Update." (View Less)

This is an activity about star movement due to the Earth's rotation. Learners will utilize the Sky Tonight online program to find the star that appears stationary in our night sky. They will then draw conclusions about the Earth’s rotation based... (View More) on the position changes of certain stars. This activity requires the use of a computer with Internet access. This activity is Sky Tonight Activity 2 in a larger resource, Space Update. (View Less)

This is an activity about the orbits of the planets in our Solar System. Learners will utilize the Sky Tonight online program to track the movement and visibility of the planets in our night sky. They will then attempt to locate these planets... (View More) outside on a clear night. This activity requires the use of a computer with Internet access and access to the clear night sky. This activity is Sky Tonight Activity 3 in a larger resource, Space Update. (View Less)