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In this multi-part activity learners examine non-point water pollution.

This simple, yet surprising physics demonstration challenges preconceptions about forces, and demonstrates the strength of atmospheric pressure.

In this design challenge, learners will practice empathy and design thinking skills by creating an invention of the future.

In this activity (on page 2), pairs of learners create an imaginary crime scene. One person leaves the room while the other person moves a few things around.

In this physics demonstration, learners will be surprised when a handkerchief holds water in an upside-down glass.

This is an activity where learners will compare the different metamorphosis stages of amphibians.

Exponga estos pósteres en el salón o déjelos donde los chicos los puedan explorar. Los chicos buscan las respuestas en línea, en libros de consulta, y en calendarios y almanaques.

In this activity, learners will explore the ways natural materials can produce sounds. Appropriate for any age, learners can make individual music or create a symphony with others.

In this interactive game, learners compare their music-listening skills with that of a three-month-old baby.

In this activity, learners will reuse plastic bags in an interesting way.

Using simple materials from around the house and recycled materials, learners will engineer a grabber device to pick up and put down objects that are at least 12 inches away.

Use this Moon Map Guide to help learners identify features on the Moon, while looking through a telescope.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

Exponga estos pósteres en el salón o déjelos donde los chicos los puedan explorar. Los chicos buscan las respuestas en libros de consulta o en línea.

In this activity, learners will engineer a roof using simple materials to protect a construction paper person from a rainstorm.

Los Momentos de Mixing in Math son actividades de 5 a 10 minutos que mantienen a los chicos ocupados, aprendiendo sobre el mundo, y usando matemáticas por su cuenta.

In this activity, learners will explore their center of gravity.

In this interactive game, learners listen to the songs of four different thrushes and then try to match each bird with its song.

In this activity, learners will use a variety of household and/or natural objects to design a sculpture that balances from a single point.

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.