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In this online activity, learners make a whole rainbow by mixing red, green, and blue light. They can change the wavelength of a monochromatic beam or they can filter white light.

In this activity, learners mix up a bubbly brew and examine density. Learners explore how they can make different materials fall and rise in water using oil, water, and salt.

This game presents you with several different choices you can make in the course of your everyday life to increase your level of physical activity and be healthier.

In this activity, learners explore how the application of nano-sized "whiskers" can protect clothing from stains.

In this activity, learners make an optical illusion toy from the 1800s to explore persistence of vision.

In this math activity, learners guess which cereals contain the most sugar. Learners use the nutrition labels on the cereal boxes to find the cereal with the least amount of sugar.

In this simple activity (on page 7 of the PDF), learners use water and liquid dish detergent to see which one removes lipstick better from an index card.

En esta actividad, Mateo y Cientina enseñan a usar modelos para ver las causas de las fases lunares.

In this activity, learners use sieves with different-sized holes to sort balls by size.

Use multiplication to help the aliens find out how much fuel they need to get their spacecrafts home.

In this activity, learners examine nanoscale structures of common things.

Combine la lógica y los números en este juego para todas las edades.

In this activity, participants will learn how stars form from the dust and gas that exists in space clumping together.

In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.

In this activity, learners will explore how different colors of lights interact with objects around them. Will a blue object stay blue with a red filter?

This is an online simulation of how sound changes due to environment. How does place--like a cave, a pier, or a forest--affect certain sounds?

In "Chemistry Makes Scents," participants use their noses to distinguish between chemicals with very similar structures.

In this activity, learners will create a model rocket out of an inflated balloon attached to a straw on a taught string.

En esta actividad, los aprendices exploran la simetría haciendo papel picado, una decoración común en México para las celebraciones.

"What's in the Water" lets participants use tools to solve the mystery- what chemicals and compounds are in a sample of water?