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Rusty Penny
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In this easy chemistry activity, learners submerge pennies in different liquids (water, lemon juice, vinegar, liquid hand soap, salt water, and baking soda mixed with water) to observe which best clea

Recrystallization Test
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In this activity, learners recrystallize substances from solutions and make observations about the resulting crystals. This test can help further identify the unknown.

Density: Make a golf ball float!
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In this activity (on page 2 of the PDF), the learner places a golf ball between salt water and colored fresh water. The golf ball is not as dense as the saltwater.

Separation Anxiety
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In this activity, learners discover the primary physical properties used to separate pure substances from mixtures.

Formation of a Precipitate
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Learners create hard water by mixing Epsom salt and water. Then they compare what happens when soap solution is mixed with hard water and regular water.

Why Circulate?
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In this activity related to the human circulatory system (on page 10 of the PDF), learners observe the dispersion of a drop of food coloring in water, draw conclusions about the movement of dissolved

Exploring How Liquids Behave
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Learners apply their knowledge from a previous study to identify different liquids--water, corn syrup, and vegetable oil.

Finding Colors
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In this chemistry challenge, learners combine acids and bases in a universal indicator to create five different colors.

Homemade Play Dough
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In this sensory activity, young learners explore chemical reactions by making their own play dough from home.

Invisible Ink
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In this simple chemistry activity (page 1 of PDF under SciGirls Activity: Colorblind Dogs) about acids and bases, learners will mix a baking soda and water solution and use it to paint a message on a

Rate of Solution Demonstration
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In this chemistry demonstration, learners investigate the factors that increase the rate of dissolution for a solid.

Indicating Electrolysis
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In this activity, learners build a simple electrolysis device. Then learners use an indicating solution to visualize hydrogen and oxygen molecules in water.

Density Rainbow
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In this activity, learners mix several sugar solutions to investigate the property of density. Each sugar solution has a different density and color of the rainbow.

Layered Liquids: Chemistry You Can Drink
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In this chemistry activity (on page 2 of the PDF), learners make a layered drink with liquids of different densities.

We all Scream for Ice Cream
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In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.
Properties of Metals
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In this activity, learners explore the properties of metals at four stations. The stations include A) Magnetism and Breakfast Cereal; B) Conductivity of Metals; C) Alloys; and D) Metal Plating.

Indicator Paper
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Use grape juice, baking soda, water and vinegar to make acid and base indicator paper! This activity contains a recipe and instructions for the indicator paper.

Trading Places
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In this activity, learners discover that atoms and ions of different metals will change places.

Estuaries
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An estuary is a body of water that is created when freshwater from rivers and streams flows into the saltwater of an ocean.

M&M's in Different Sugar Solutions
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In this activity, learners investigate whether having sugar already dissolved in water affects the speed of dissolving and the movement of sugar and color through the water.