You are in a submarine and need to fix the currents to take you where you want to go. You want to get the key to the treasure chest full of gold!

Wikipedia offers a brief explanation on what specific gravity is and why it is measured in terms of density of water. The equation for its measurement is also given.

This interactive brainteaser from the NOVA: "Voyage of Doom" Web site challenges you to figure out what happens to the water level when a rock is resting in a boat and when it is submerged in water.

Focus is on the hydrosphere and contains the definition as well as characteristics of the ocean and the effect of the ocean on climate.

Compare the density of water, corn oil and corn syrup by trying to float different items in each material and then putting all three liquids into one container.

An overview of scientist Henry Cavendish's accomplishments. Discusses his achievements, primarily his work with quantitative measurements.

For this activity, students will investigate how temperature and currents affect the salinity of ocean water, making predictions after studying ocean maps. It is recommended that teachers do the experiment themselves before presenting it...

An experiment to determine if either a regular or a diet can of soda will float or sink when placed in water, and what causes this.

By the end of this section, you will be able to explain the relationship between vapor pressure of water and the capacity of air to hold water vapor, explain the relationship between relative humidity and partial pressure of water vapor...

Students act as chemical engineers and use LEGO MINDSTORMS NXT robotics to record temperatures and learn about the three states of matter. Properties of matter can be measured in various ways, including volume, mass, density and...

In this lesson, students will understand that temperature changes can cause density changes in water and in air.

In this Physics lab, students learn about Archimedes' Principle. An object is submerged in water and vegetable oil and the buoyant force and height are measured at different levels. The slope of the graph Buoyant Force vs. Height is the...

[Free Registration/Login may be required to access all resource tools.] How different densities of water drive ocean currents.

[Free Registration/Login may be required to access all resource tools.] Learn how water with different densities drives deep ocean circulation.

In this activity, students will observe that a change in the temperature of air will determine its place in the atmosphere. Water, which behaves very similarly to air, is used in this demonstration. It flows in fluid currents in a visual...

Read to find out about the first boat builders. Construct your own boat out of common materials to explore buoyancy.

The atmosphere forces the ocean in three ways: addition and removal of heat, precipitation and evaporation, and wind stress. The former two processes influence the density of sea water. Gravity acts on these density differences to cause...

Sixth graders predict if different types of coke will float or sink.

Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This one...