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The Pull of the Planets
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In this activity, learners model the gravitational fields of planets on a flexible surface.

Linear Functions: Mystery Liquids
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In this math lesson, learners analyze the density of liquids in order to explore linear functions.

Dunking the Planets
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In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

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.

The Liquid Rainbow
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Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.

Exploring Liquids
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Young learners investigate and observe the properties of three liquids -- water, vegetable oil, and corn syrup. They use their senses to collect data and ask and answer questions.

Comparing the Density of Different Liquids
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Learners carefully pour vegetable oil, water, and corn syrup in any order into a cup and discover that regardless of the order they are poured, the liquids arrange themselves in layers the same way.

Five-Layer Density Column
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In this activity, learners can create five-layer density columns by employing one of three (or all) methods.

Snowstorm in a Jar
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In this activity, learners will experiment with density and chemical reactions to create a flurry activity.

Lava Lamps
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Learners observe working lava lamps to understand how they work (included in PDF link).

Submarine: Soda Cup Lander
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In this activity (on page 2), learners create a submarine using a plastic cup. This is a fun way to learn about buoyancy and density.

Floating Dry Erase Creations
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In this activity, learners will create a drawing with dry erase markers and watch it come to life. Learners will explore chemistry, art and storytelling through this activity.

Physics in the Kitchen: Sink or Swim Soda
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In the kitchen, learners can perform their own density investigation.

Oily Ice
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In this activity, learners experiment with the density of ice, water, and oil. Learners will discover that the density of a liquid determines whether it will float above or sink below another liquid.

Hot Air Balloon
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In this activity, learners build a hot air balloon using just a few sheets of tissue paper and a hair dryer.

Root Beer Float
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In this quick activity/demonstration about density, learners examine what happens when two cans of root beer--one diet and one regular--are placed in a large container of water.

Pressing Pressure
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In this activity, learners compare water pressure at different depths. Learners discover that water pressure increases with depth.

Infant Moon: Moon Mix!
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In this activity, learners investigate the Moon's infancy and model how an ocean of molten rock (magma) helped shape the Moon that we see today.

Exploring the Ocean with Robots
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In this activity, learners are introduced to robotic submarines called gliders. Learners make “gliders” from plastic syringes and compare these to Cartesian bottles and plastic bubbles.

Density Rainbow and the Great Viscosity Race
Learners conduct two activities to investigate two properties of liquids: density and viscosity. In a clear container, learners stack 7 different liquids which will layer according to their density.