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**Earth and space science**

**Physical sciences**

Now showing results **41-50** of **113**

In this problem set, learners will apply the concepts of reflectivity and absorption to derive the likely composition of the materials described in different scenarios. A table with the reflectivity of common materials and the answer key are... (View More) provided. This is part of Earth Math: A Brief Mathematical Guide to Earth Science and Climate Change. (View Less)

This is an activity about Earth's magnetosphere. Learners will use a magnet, simulating Earth's protective magnetosphere, and observe what occurs when iron filings, simulating the solar wind, blow past and encounter the magnet's field. This is the... (View More) sixth activity in the Magnetic Math booklet; this booklet can be found on the Space Math@NASA website. (View Less)

In this problem set, learners will practice fractions by working with the ratios of various molecules or atoms in different compounds to answer a series of questions. Answer key is provided. This is part of Earth Math: A Brief Mathematical Guide to... (View More) Earth Science and Climate Change. (View Less)

This is an activity about depicting magnetic polarity. Learners will observe several provided drawings of magnetic field line patterns for bar magnets in simple orientations of like and unlike polarities and carefully draw the field lines and depict... (View More) the polarities for several orientations, including an arrangement of six magnetic poles. This is the fourth activity in the Magnetic Math booklet; this booklet can be found on the Space Math@NASA website. (View Less)

In this problem set, learners will answer a series of questions about the complex molecule, Propanal. Answer key is provided. This is part of Earth Math: A Brief Mathematical Guide to Earth Science and Climate Change.

In this experiment, students create a "lava lamp" - a beaker on a hotplate, and investigate buoyancy, convection and other fluid and thermodynamic properties using ink, water, vegetable oil and Alka-Seltzer tablets. The activity is from PUMAS -... (View More) Practical Uses of Math and Science - a collection of brief examples created by scientists and engineers showing how math and science topics taught in K-12 classes have real world applications. (View Less)

In this problem set, learners will determine the scale of a false-color infrared satellite image of Paris and measure several of the features depicted in it. Answer key is provided. This is part of Earth Math: A Brief Mathematical Guide to Earth... (View More) Science and Climate Change. (View Less)

In this lesson, students observe the surface of rotating potatoes to help them understand how astronomers can sometimes determine the shape of asteroids from variations in reflective brightness.

Learners will construct a model to show the relative size and scale of the Sun-Earth system, investigate the visible and electromagnetic spectrums, discuss solar flares and solar weather, develop a UV shield, and discuss the results of their... (View More) investigations. The unit is set in the context of solving a mystery and supports the idea that scientific explanations are based on evidence. This is Unit 1 of the GEMS Space Science Sequence for Grades 6-8, which is available for purchase (see related link). (View Less)

In this two-part investigation, students explore the concept of transits. In the first part, they discover that a transit is an event where one body crosses in front of another, like when a planet goes in front of a star. In the second part,... (View More) students investigate how a planet's size and orbit affect the transit and then learn how to interpret transit graphs. Extension activities, an explanation of the mathematics used in the activity, background information, real data from NASA missions, and an answer key are included. (View Less)