Learners analyze density. In this density lesson, students experiment with floating an egg. Learners discover that salt added to water changes the density of the water allowing an egg to float.

Fourth graders calculate density, compare densities of solids and liquids, measure liquids using a balance, and investigate the significance of density. They conduct an experiment to determine an order of densities, and complete a...

Pupils explore physics by conducting a class experiment. For this density lesson, students examine a list of items and discuss whether they will sink or float and then determine their density. Pupils examine the objects over five days...

Students investigate density. For this density lesson, students conduct an experiment using food coloring. Students observe the differences in mixing food coloring in water and oil.

Students explore density by floating golf balls. They explore having their golf balls float halfway in a container of water and discuss density and its realtionship to where the golf balls are floating. After adding food coloring, they...

Learners examine the relationship between density and buoyancy.  In this physics lesson students use Archimedes' Principle to complete calculations on buoyancy and a lab activity.

Students examine icebergs and how they are suspended in water, why ice floats, the melting process of an iceberg, and the floating behavior of ice compared to that of a cork through a lab activity.

Tenth graders experiment with floating and sinking objects and heavy and light liquids, using correct terms, like density, to explain what happens.  In this Hindenburg lesson, 10th graders watch a demonstration called the invisible...

Students conduct an experiment to observe the properties of both salt and freshwater. They explain why freshwater will stay at the surface while salt water will travel up a river bottom because of density. Students also research the...

Fifth graders determine volume and density through their knowledge of mass, volume and density.

Students examine buoyancy.  In this density lesson students form a hypothesis, collect data and draw a conclusion using the data. 

Students investigate buoyancy by participating in a lab experiment. In this density lesson, students utilize vinegar and alcohol in beakers and attempt to float different items in them. Students analyze which items float and do not while...

Pupils explain the importance of water in our daily lives. In this aquatic science activity, students identify different ways to purify water and make it potable. They design and construct a water filter based on researched information.

Learners receive a miniature pumpkin and proceed through several stations to measure a variety of physical properties. The data is entered into a data sheet and the mass and volume measurements are used to calculate density. They also...

Young scholars hypothesize and observe what occurs when raisins are dropped in a carbonated liquid. They examine buoyancy and how density effects ascent and descent.

Students observe earth science by examining results from an experiment. In this buoyancy lesson, students practice floating different items in two different liquids and identify why certain objects will float and others sink. Students...

Students discover how salt water makes a pencil float better than freshwater by measuring and comparing the lengths of the portion of the pencil that floats above the water surface. They then determine if an unknown water sample is...

High schoolers conduct a variety of investigations to see how water, heat, and salinity affect the flow of the world's ocean currents,as well as, explore many factors that affect the flow of the world's ocean currents. They also describe...

Sixth graders explore ways to analyze the properties of water and examine the chemistry of water.  In this water instructional activity students work in groups and complete several activities. 

Introduce your class to the concept of sinking and floating. In groups, they classify objects after making predictions about which materials will sink or float. They record their results and create graphs and charts to share with the class.

Oceanography experts use candy to construct a model of a bio-physical mooring that would test a variety of factors. Each piece of equipment to be included on the mooring is described within the write-up. As pupils gather the candies for...

Learners investigate how the density of water changes the buoyancy of water. Students create a hypothesis about what will happen when placing the egg into the water.Learners can research online different bodies of water (The Red Sea, The...

Students study Archimedes' Principle, flotation and the reaction of buoyant forces and explain the relationship between density and flotation.

Learners determine the volume of water in a given amount of snow. They calculate a ratio for water volume per snow volume.