# NASA Wavelength Resources Collection

## What Can We Learn About The Sun From Shadows?

This is an activity about light and shadow. Learners will make outdoor sundials. They will use the sundial and the length of the shadow that is cast to explore the relationship between the size and position of the shadows and the position of the Sun in the sky.

## Dollar$ or Cent$

It is common in the real world to see mathematical examples where the cents sign was used when the dollar sign was supposed to be used. Converting and comparing decimals and fractions can help clear up this misconception.

## Eclipses and Moon Phases

In this lesson, students explore how eclipses happen and why Einstein needed a total eclipse to image stars near the Sun in order to demonstrate how the Sun's mass bends the light from a far away star.

## Just How Far is that Star?

In this investigation, students use "point-source" light, light meters, and graphing software to quantify the reduction in light over distance. Through careful measurement of light received at several distances, students discover the best fit of the data is the inverse square rule.

## When a Ruler is Too Short

This activity lets students measure distances in the classroom using parallax. The exercise can be done either at a high school level using trigonometric functions, or at a middle school level using simple arithmetic approximations to the trigonometric functions.

## Egg Drop Lander

Learners will collaboratively design and build a descent and landing system for an egg. The students will also practice their writing skills by writing a letter or article about the success or failure of their spacecraft design. This is lesson 15 of 16 in the MarsBots learning module.

## S'COOL Lesson: Weather BINGO

In this activity, students play the familiar BINGO board game, using predetermined vocabulary terms. Includes detailed procedure and materials, a vocabulary section linked to an on-line glossary.

## Phoenix's Robotic Arm

This is a lesson about programming and communications in space exploration. Learners will simulate sending commands to operate a robotic arm to complete a task. This is lesson 13 of 16 in the MarsBots robotics learning module.

## MRC: Selecting Teams Rover Mission (Grades 3-5)

Learners will construct a valid scientific question that can be answered by data and/or modeling and choose an appropriate mission for their rover that will answer their scientific question.

## Through Thick and Thin

In this inquiry investigation, students discover how a given amount of light changes in intensity when the area it shines on changes, and that change in light and heat occurs when the Earth is tilted towards or away from the Sun.