Students demonstrate how ocean currents are influenced by changes in density. They discover that temperature and salintiy affect density as well. They participate in a short experiment to end the activity.

Students analyze the relationship between density, buoyancy, and salinity. In this chemical properties lesson plan, students read a background activity for the lesson plan and experiments to the topics. Students discuss the questions and...

Students discover the geography of Earth by analyzing water currents.  In this oceanography lesson, students create visual references on a map of the globe where and why major ocean currents are moving water.  Students conduct...

In this water in the environment worksheet, students match 10 terms related to water to their definitions. They identify 10 sentences as true or false related to groundwater, layering and landfills. They fill in the blanks for 2...

Now that you know the ocean has layers, let's name them. The seventh installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO) program covers terminology associated with ocean layers, such as thermocline and...

Young scholars explore the concept of finding the composition of seawater.  In this finding the composition of seawater instructional activity, students make a saturated salt water solution.  Young scholars discuss why there is...

Learners define and discuss salinity, conduct classroom experiment to determine salinity of water sample by using hydrometer, record predictions, and demonstrate understanding of how salinity influences object's ability to float in water.

Students analyze density. In this density instructional activity, students experiment with floating an egg. Students 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...

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

Students investigate density. In 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...

Students examine the relationship between density and buoyancy.  For 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...

Young scholars 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...

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

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

Learners 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. Learners analyze which items float and do not while...

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

Students 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...

In this density worksheet, students modify three film canisters in order to make one float in a tank of water, another suspend in the middle of the tank, and the third should sink to the bottom. They collect data on their canisters and...

Students 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...