Students perform an experiment to measure the density of tap water vs. salt water.

Students examine water's properties. They participate in hands-on activities to show the properties of water.

First graders observe the surface tension of water. In this water properties activity, the teacher defines surface tension, then guides students through eight experiment that illustrate surface tension.

Explore how electricity splits water molecules into hydrogen and oxygen. Learners begin by calculating the voltage necessary to separate the water. They then perform the experiment and measure the ratio of hydrogen and oxygen bubbles.

Fourth graders engage in this interactive lesson plan which illustrates diffusion and osmosis and shows them that molecules of life move dynamically and powerfully. They must analyze their lab orally and in writing.

Fourth graders complete activities to study weather and the water cycle. In this water cycle lesson, 4th graders observe a demonstration of the three stages of water. Students work in groups to complete a water cycle lab activity....

Sixth graders explore how water behaves on a penny.  In this states of matter lesson, 6th graders observe water as they add drops to a penny. This lesson helps students apply the adhesive properties of water to the water cycle.

Students explore water, molecules, and surface tension. In this floatation instructional activity, students discover why some objects are able to float on water as they follow the procedures included in this activity.

Fifth graders study the properties of metals and use them to identify different properties.  In this metal properties lesson students complete a demonstration .

Young scholars conduct a series of experiments on water electrolysis. In this chemistry lesson, students explain what happens to the molecules during the process. They cite real world applications of electrolysis.

Students explain that some things can float on top of water because of what we call "surface tension." They see that if something happens to disturb these water molecules from tugging on each other, the skin-like surface breaks up.

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

Students explore how temperature affects the processes of evaporation and condensation.

Students explore oxygen and its physical and chemical propeties.  In this investigative lesson students complete several experiments using oxygen.

Eighth graders study the concepts of acids, bases, salts and neutralization. They discuss steam adoption program, acid rain and other ecological implications. They use indicators to obtain pH values of household chemicals and to...

Students investigate the physics of heating and cooling through conduction, convection, and radiation. Working in groups, they determine the best way to cool a can of water and warm a can of water. Temperature is taken at five minute...

Students investigate osmotic balance in living cells. In this osmotic balance lesson plan, students use elodea leaves to study the effects of salt solutions on the cell. They compare the changes in an elodea leaf with salt water on it to...

Students complete a hands on activity using hard boiled eggs, food coloring, tape, cups, water, and a knife to show how permeability affects animals. In this permeability lesson plan, students complete this activity and learn how...

Students observe the melting of ice and explore the basic physical changes that occur. They gain information of how different substances change the rate of melting. Students discuss the properties of water and ice, the definition of...

Pupils observe what happens when sugar is dissolved in water and when it is heated. They weigh the products after each of the two experiments on a balance scale. Pupils distinguish between physical and chemical changes. Students are...

Students explore diffusion and active transport. They observe the effects of eggs in vinegar and predict what will happen when eggs are placed in corn syrup with food coloring. Students complete worksheets which lead them to describe...

Fifth graders study how respiration and circulation are connected.  In this respiratory instructional activity students complete several activities to better understand heart rate and carbon dioxide in the body. 

Students determine crude oil can be separated into useful fractions by a process of fractional distillation. They write a balanced equation for the reaction between a hydrocarbon and oxygen.

Students explore enzyme catalysis through a series of experiments. In this chemistry instructional activity, students determine the factors affecting catalysis. They explain the different uses of this process.