Why Angle Changes Intensity

When exploring Mars, spacecrafts are exposed to 5-11 times more sunlight than when near Earth. Groups of pupils complete a hands-on activity to explore how distance and angle of the sun affect temperature. Through discussions, they then...

Shine some light on the topic of seasonal change with this collection of activities. Whether it's by measuring the change in the length of their shadows, or modeling the earth's orbit around the sun using a lamp and a globe, these simple...

Does the angle of a solar panel change the output? Emerging engineers find out! Demonstrate for your class how they can angle a straw to match the angle of light rays coming from a source. Then turn them loose to experiment with the...

If you have solar car kits for your junior high schoolers, they can experiment with photovoltaic cell angle, light intensity, and aerodynamic design to discover what makes their car move more quickly. This is a classic activity to use...

Students study about the changes of puberty for boys and girls. In this health lesson, students study how the body changes during puberty and make a presentation about a significant change that can take place during puberty and how to...

The climate at the equator is hotter than the climate at the poles, but why? The lesson goes in depth, explaining how the angles of illumination relate to the heating rate at different latitudes and seasons. Scholars use a strong lamp,...

The North Star changes — it was previously Thuban but now is Polaris, and in the future, it will be Vega. The video discusses the cycles observed in the sky with only your eyes. It focuses on the zodiac constellations and why they are...

Would you rather having biting flies or chocolate? The question may seem absurd, but cocoa trees rely on pollination from biting flies. Viewers come to understand the importance of pollinators to our food supply, flowers, and entire...

Small changes in individual diets add up quickly, which is the theme of the ninth lesson in the 13-part Our Hungry Planet unit. Viewers watch a video to learn basic facts before reading a handout and discussing their own choices.

Students think about what causes the seasons to change, reflect on what they know about seasons and how their lives affected by seasonal changes.