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In this activity, learners will explore light with reflective surfaces. Learners will make predictions and share their observations as they experiment with directing a beam of light.

In this activity, learners make an astrolabe, a device used for measuring altitude, including the height of objects in the sky.

In this outdoor, windy day activity, learners "fly" and race leaves along a line to discover which types of leaves catch the most wind. Which leaves are the best fliers? Why?

This simple but open-ended math game introduces basic probability concepts using coins and dice. Players roll the dice and collect coins to match the number rolled.

In this activity, learners track their movements with jumping and leaping graphs.

This lesson (on pages 15-24 of PDF) explores how sound is caused by vibrating objects. It explains that we hear by feeling vibrations passing through the air.

In this physics activity (page 6 of the PDF), learners will demonstrate air has weight by comparing an inflated balloon to a deflated one.

This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.

In this activity (17th on the page), learners investigate why you cannot see colors in dim light.

In this matching activity (3rd activity on the page), learners use their sense of smell to match pairs of opaque containers filled with various smelly items like orange peel, roses, or moth balls.

In this chemistry activity (page 1 of the PDF), learners will observe a physical change.

In this activity, learners "go fishing," then practice ruler use and size/pattern comparison with the animals they catch.

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

In this outdoor simulation game, learners search for pretend animals called "sticklers" to determine and map where they live (habitat) and how spread out they are in that area (distribution).

In this activity, learners investigate static electricity using everyday objects at four different stations.

Capture soap bubble patterns on paper! In this activity, learners can create beautiful pictures from popping soap bubbles.

This hands-on activity demonstrates how a material can act differently when it's nanometer-sized.

This Exploratorium activity explores size and scale. Through four levels of screen sizes, learners can sort out objects of different sizes.

In this creative outdoor activity, learners invent populations of make-believe organisms and then investigate real populations living in the activity site.

In this activity, learners will explore saturated solutions and discover how crystals form.