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This lesson focuses on how materials behave differently as their surface area increases.

In this fun hands-on activity learners explore a simple machine: the lever. What happens to a load when you multiply the length of a lever? Find out here!

In this activity, learners create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns.

In this activity (page 2 of PDF under GPS: Glaciers Activity), learners will measure the rate at which water streams out of a leaky cup.

In this math lesson, learners analyze the density of liquids in order to explore linear functions.

In this great hands-on activity, learners use patterns to make a teepee from newspaper that they sit inside.

In this activity, "write" a secret message in genetic code as beads on a string.

In this classic hands-on activity, learners estimate the length of a molecule by floating a fatty acid (oleic acid) on water.

In this math activity, learners estimate how many pennies are in a jar by predicting and counting handfuls of pennies.

In this activity, learners measure the amount of carbon dioxide in a carbonated drink.

In this activity, learners use a straight line to learn about circles. Learners measure and record the diameter and circumference of different sized cylindrical objects on a chart.

In this calculus activity, learners use a classic problem of geometrical probability to find an important mathematical constant (pi).

This activity helps learners learn about math through a real-world scenario. Three friends are baking cookies for their school’s bake sale.

How does a green roof, or roof covered by plants, affect the temperature of the inside and outside of a building? Learners design and build houses to find out the answer.

Learners build simple catapults and use them to launch cotton balls.

In this space science activity, learners explore transits and the conditions when a transit may be seen.

Learners investigate weight by building a spring scale. They observe and record how it responds to objects with different masses.

This lesson focuses on how nanotechnology has impacted our society and how engineers have learned to explore the world at the nanoscale.

In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants.

En esta actividad, los aprendices leen sobre como Mateo y Cientina conducen una investigación forense para descubrir quien llevó unos dulces.