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In this game, learners experience how computers divide a big problem into many smaller ones and how they use binary "yes"/"no" questions.

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

In this activity, learners will explore the physics of liquids and gas by playing with both! Learners of any age use their own breath to move drops of water across a smooth wax paper surface.

In this activity, learners explore materials through paper chromatography.

In this activity, learners design and build a Zoom-a-rang using everyday materials. Experiment with different materials and Zoom-a-rang designs to see how they fly.

In this activity, learners play a card game that explores different size scales--macro, micro and nano.

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

In this simple game, learners start to understand how to sort and categorize objects by trying to guess the connection between three items that someone else has chosen.

In this number puzzle/trick, learner #1 thinks of a number between 1 and 63. Learner #2 shows learner #1 six cards and asks them whether the cards contain their number.

This game depicts a woman going through her day, faced with various loud sounds.

This is an online game about stopping distance. Learners choose one of three vehicles and one of three speeds.

In this activity, learners find the answer to the question, "if you have a pile of 8 cards, and you remove half, then half again, how many times can you do this until you get to just one card?" This w

In this activity, learners will use their nose to sniff out hidden scents using extracts and cotton balls. Activity includes materials list, game instructions, STEM connections and more.

These two activities (4th on the page) demonstrate the importance of two eyes in judging depth.