Fourth graders conduct an experiment to get them thinking about the invisibility of air, and to prove that air has weight.

Third graders use a Slinky, rubber bands, paper, coins and cups to experiment with weight and its relationship to gravity. They discuss their results and develop a consensus on conclusion statements derived from their experiments.

Students investigate aerodynamics by comparing and contrasting the flight of two gliders. They make prediction and observation charts and test a variety of hypotheses using paper gliders.

Students observe falling objects. They discover the rate of falling is based on air resistance and not the weight of the objects. They discuss how engineers use this type of information to design aerodynamic shapes.

Students study salty and fresh waters.  For this harbor estuary lesson students complete a lab activity on salinity and describe what happened. 

Fourth graders study flight and compare various flights.  In this measurement lesson students complete a lab activity and record measurements. 

Students identify comparatives and superlatives. Students read article on comparatives and superlatives. They explore spelling patterns. Students rewite adjectives to form comparatives and superlatives and complete a worksheet.

Students conduct an experiment to simulate an oil spill and identify the characteristics of oil in water. They evaluate the effectiveness of various cleanup methods. They discuss the how to clean up an oil spill, and what causes oil...

Students explore convection and how it happens in the earth's atmosphere.

Students participate in a teacher demonstration of the water level in different beakers to investigate the measurement of volume. Next, working in small groups, they replicate the demonstration and determine how the measurements in the...

Third graders complete scientific investigation to determine what volume is and how it is determined by size not by mass. They discuss what they know about volume before proceeding with the demonstration and experimentation. After the...

In this science worksheet, learners look for the meaning of the water cycle and its relation to the formation of clouds. They read the information about the different types of clouds.

Learners work together to design a tower from a computer program. They manufacture the pieces with a laser cutter and compete in a competition to determine the best design for stress relief on towers. They discover the work engineers...

Students define kinetic energy and know the effects of weight and speed on momentum.  In this investigative lesson students get into groups and design a roller coaster. 

Students define potential and kinetic energy and explain the relationship of height to potential energy.  In this roller coaster lesson students construct a model of a roller coaster which will allow them to see the basic physical...

Teachers, to demonstrate to the elementary student that some gases are heavier than others, this experiment uses Winnie the Pooh and balloons to do just that.

Students learn that it is incorrect to believe that heavier objects fall faster than lighter objects. By close observation of falling objects, they see that it is the amount of air resistance, not the weight of an object, which...

The concept of air resistance is discussed in terms of why a heavier object falls faster than a lighter object when both dropped from the same height. In this discussion and animation, an elephant and feather are used as examples.