Narrow Search

Filters: Your search found 75 results.
Topics/Subjects:
Physical sciences  
Instructional Strategies:
Generating and testing hypotheses  
Discussions  
Guided inquiry  
Resource Type:
Activity  
Sort by:
Per page:

Now showing results 31-40 of 75

This is a lesson about the science supporting the design and operation of an ion propulsion engine. Learners will study the concepts of formation and discharge of charged particles, attractive and repulsive forces between charged particles, and the... (View More)

Audience: High school
Materials Cost: Free

This experimental activity is designed to develop an understanding that air has mass. Students conduct an investigation and observe the change in the position of a bar balancing a balloon inflated with air on one end and a uninflated balloon on the... (View More)

This experimental activity is designed to develop a basic understanding of the interrelationship between temperature and pressure and the structure of a device made to examine this relationship. Resources needed to conduct this activity include two... (View More)

This activity promotes student understanding of some of the movements that take place when warmer water and cooler water interface, and how differences in densities, resulting from variations in temperature, set molecules of liquids and gases in... (View More)

Learners will study the essential components and variables of an ion propulsion system. Activities include an on-line ion propulsion engine simulation and design. Included are changes in energy and fuel consumption as a result of variable changes... (View More)

Audience: High school
Materials Cost: Free

Learners will explore the concept of parallax (the apparent displacement of an object caused by a change in the viewer's position) and then simulate the discovery of Pluto with a Blink Comparator via an online interactive.

Audience: Elementary school, Middle school
Materials Cost: Free

This is a lesson about the Phoenix Mars Lander's science mission to use robotic technology to uncover water on Mars. Learners will be introduced to the mission and conduct some simple experiments to learn about the important properties of water and... (View More)

Audience: Elementary school
Materials Cost: 1 cent - $1 per student

This is a lesson about the formation of glaciers, ice layering and stratigraphy, and the cryosphere and cryobotics. Learners will collect evidence of layering, explore the science story that layering tells, study snow and ice for insights into... (View More)

Learners will observe ice melting and freezing under a variety of conditions and relate that to the Messenger mission. This is lesson 1 of 12 in Exploring Ice in the Solar System.

Audience: Pre-kindergarten, Elementary school
Materials Cost: Free

This is a lesson about the characteristics of ice as a mineral and how it compares to other minerals with respect to hardness. Learners will observe ice crystals, develop a hardness scale and position ice on it. Learners will also practice working... (View More)