# Search Results

Showing results 1 to 20 of 79

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In this activity (on page 2 of the PDF under GPS: Sailboat Design Activity), learners will discover how the shape of an object, not just its weight, determines whether it floats or sinks.

\$1 - \$5 per group Ages 8 - 14 45 to 60 minutes
Source Institutions
In this outdoor activity and bingo-like game, learners explore why and how seeds spread far from the plants that produce them.

\$1 - \$5 per group Ages 8 - 14 30 to 45 minutes
Source Institutions
Learners see that a carrot slice sinks in fresh water and floats in saltwater.

1 cent - \$1 per group Ages 8 - 14 10 to 30 minutes
Source Institutions
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.

\$1 - \$5 per student Ages 6 - 14 5 to 10 minutes
Source Institutions
In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.

1 cent - \$1 per group Ages 6 - 14 5 to 10 minutes
Source Institutions
Learners compare the weight of equal volumes of wax, water, and clay. Learners discover that since the wax weighs less than an equal volume of water, it is less dense than water and will float.

\$1 - \$5 per group Ages 8 - 14 30 to 45 minutes
Source Institutions
In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.

\$5 - \$10 per group Ages 8 - 14 1 to 2 hours
Source Institutions
In this introductory demonstration and activity, learners are introduced to the concept of density as they explore a rock and a wooden block in water.

\$1 - \$5 per group Ages 8 - 14 30 to 45 minutes
Source Institutions
Learners will see that changing the shape of an object, like a clay ball, that is more dense than water, can affect whether the object will sink or float.

\$1 - \$5 per student Ages 8 - 14 30 to 45 minutes
Source Institutions
In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water.

\$1 - \$5 per group Ages 6 - 14 Under 5 minutes
Source Institutions
In this demonstration, learners observe the effects of density and pressure. A "diver" constructed out of a piece of straw and Blu-Tack will bob inside a bottle filled with water.

1 cent - \$1 per group Ages 4 - adult Under 5 minutes
Source Institutions
In this activity, challenge learners to float a paper clip in a cup of water. Learners discover that a paper clip will sink in a cup of water, except when it is placed on a piece of paper towel.

1 cent - \$1 per student Ages 6 - 11 5 to 10 minutes
Source Institutions
In this activity, learners explore how changes in fluid pressure affect the buoyancy of a Cartesian diver inside a plastic soda bottle.

\$1 - \$5 per student Ages 8 - 14 10 to 30 minutes
Source Institutions
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.

\$1 - \$5 per group Ages 8 - 14 30 to 45 minutes
Source Institutions
In this ocean engineering activity, learners explore buoyancy and water displacement. Then, learners design models of deep sea divers that are neutrally buoyant.

\$1 - \$5 per group Ages 8 - 14 45 to 60 minutes
Source Institutions
In the kitchen, learners can perform their own density investigation.

1 cent - \$1 per student Ages 8 - 14 5 to 10 minutes
Source Institutions
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.

\$1 - \$5 per student Ages 6 - 11 10 to 30 minutes
Source Institutions
In this activity, learners use tinfoil to build and test their own boats - which designs will float, and which will sink?

1 cent - \$1 per student Ages 6 - 11 45 to 60 minutes
Source Institutions
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.

1 cent - \$1 per group Ages 4 - 14 Under 5 minutes
Source Institutions
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.

Over \$20 per group Ages 8 - 14 10 to 30 minutes