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    Oregon Museum of Science and Industry
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    This display shows slow chemical reactions in colorful crystal formations known as Liesegang Rings. These reactions are similar to those forming the rings in agates. This activity is recommended...

    $5 - $10 per student Ages 14 - adult 1 to 4 weeks
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    Oregon Museum of Science and Industry
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    In this activity, learners explore acids and bases by preparing six solutions that combine vinegar and ammonia, ranging from acid (all vinegar) to base (all ammonia). They add an indicator to each...

    $5 - $10 per group Ages 8 - adult Under 5 minutes
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    Oregon Museum of Science and Industry
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    In this chemistry activity (on page 2 of the PDF), learners corrode a penny in a cup with vinegar, salt water, and a source of iron (nails, paper clips, or twist ties). The combination of salt and...

    1 cent - $1 per student Ages 6 - 14 1 to 7 days
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    Oregon Museum of Science and Industry
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    In this activity (on pages 19-24 of PDF), learners soak chicken bones or eggshells in vinegar for several days. Learners observe what happens to the material as the acid dissolves the calcium that...

    1 cent - $1 per student Ages 8 - 14 1 to 4 weeks
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    Oregon Museum of Science and Industry
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    Eggs are placed in vinegar for one or two days to dissolve the shells. Then, learners place the eggs in water or corn syrup and observe them over a period of days. Through the process of osmosis,...

    $1 - $5 per student Ages 6 - 14 1 to 7 days
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    Oregon Museum of Science and Industry
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    Make a classic polymer toy using Borax and white glue! It's stretchy and bouncy and acts sort of like a solid and sort of like a liquid (similar to Silly Putty). This recipe suggests ways to...

    $1 - $5 per group Ages 4 - adult 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    Learners make their own acid-base indicator from red cabbage. They use this indicator to test substances around the house. Red cabbage juice is purple in water (neutral), pink or red in vinegar ...

    $1 - $5 per student Ages 6 - 14 10 to 30 minutes
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    Oregon Museum of Science and Industry
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    In this activity (on page 2 of the PDF), learners make a plastic protein polymer from milk. Adding vinegar to milk causes the protein casein to solidify or curdle. After allowing the casein to dry,...

    $1 - $5 per student Ages 6 - 14 1 to 7 days
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    Oregon Museum of Science and Industry
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    In this classic reaction, learners baking soda and vinegar in a soda bottle to produce carbon dioxide (CO2) gas. This gas inflates a balloon. This lesson addresses properties of gases, and...

    $1 - $5 per student Ages 6 - 14 5 to 10 minutes
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    Oregon Museum of Science and Industry
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    Learners combine different plant solutions -- made from fruits, vegetables, and flowers -- with equal amounts of vinegar (acid), water (neutral), and ammonia (base). They compare the color changes...

    1 cent - $1 per group Ages 11 - adult Under 5 minutes

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