Effect of Light on Seed Germination

Take young naturalists on an exploration of the world's tropical rainforests with this extensive collection of lessons and activities. Whether its creating leaf and flower prints or investigating the absorption spectrum of chlorophyl,...

Groups explore illumination with NASA's Lighting Environment Test Facility (LETF) as a context. Using the TI-Nspire app, groups determine the lux equation that models their simulation. They then use the lux equation to solve problems...

Many types of cancer treatments now depend on nanotechnology—a big "little" discovery. Scholars begin by removing "malignant" tissue from simulated brains, one using fluorescent markers thanks to nanotechnology and one without. This...

Don't lift another finger, this physical and environmental science unit has everything you need to begin teaching your class about energy. Starting with a look at the greenhouse effect, these lessons and activities take young scientists...

Gummy bears are tasty, but did you know they are also used to determine color and light properties? Use the activity as a way to demonstrate light absorption, light reflection, and refraction with high schooler. Pupils conduct small...

What effects do temperature and carbon dioxide levels have on the zooplankton of Antarctica? This concluding lesson in a short unit on climate change and the ocean helps environmental scientists answer these questions. After learning...

Ahoy, matey! Here is an engineering expedition that mini mariners are sure to be swept away by! After reading a brief description and history of periscopes, they work in crews to construct one. Use this activity to enhance a lesson on...

Engineering challenges are not just man-made ... nature has its own set of them. A hands-on STEM activity has groups designing a seed dispersal system. Each group can only use one sheet of paper — a tough task!

Here is the first of four poignant lessons on how humans and oceans interact, even if people live far from the coast. This particular lesson also examines studies that are taking place in Antarctica of how climate change is affecting the...

There's more to climate than just the weather — explore the different components that affect weather with an enlightening resource. A hands-on unit takes an inquiry-based approach to studying wind and ocean currents. Learners discover...