NASA
The Science of the Sun
There's more to that glowing ball of light in sky than most children realize. From the overall structure of the solar system, to the changing of the seasons, these hands-on lessons open the eyes of young scientists to the important role...
PBS
Seasons on Earth and Mars
Winter, spring, summer, and fall—Earth experiences them all! But what about Mars? Scholars compare the planets in terms of distance, tilt, and rotation during a lesson from PBS's Space series. Great visual models of Earth and Mars, plus...
Curated OER
Weather and Climate
It's hot today, but is that the weather or the climate? This colorful presentation isolates both concepts to allow for better understanding by covering the positioning of the planet, making comparisons of land versus water, and looking...
McGraw Hill
H-R Diagram
As a star ages its composition, size, and temperature change. Using an interactive simulation, learners explore these changes over the lifetime of a star. They see the change in temperature and luminosity graphically and a visual...
Class Antics
Leap Year
What is a Leap Year and why do we have it? Find out with this Leap Day/Leap Year response to reading learning exercise in which scholars read a short passage and use their new-found knowledge to answer five questions with short answers.
National Security Agency
Time After Time
Save those precious minutes and hours spent planning math lessons with this mini-unit on telling time. Offering a series of engaging hands-on and collaborative learning activities, these three lessons teach children how to read analog...
Curated OER
How Old is that Cookie?
Students investigate adaptation. In this cookie age lesson, students examine changes and variations in chocolate chips in cookies in preparation for determining the age of trees using lines. Students discuss how the age of trees is...
Curated OER
Days, Month, Year - Calendar Practice
In this calendar math practice activity, 2nd graders answer 6 multiple choice questions about days, months, and the year. They answer questions such as "What is the fifth month of the year?" and "How many days does September have?"