Historical	Abstract
A Helical Coil of Wire Acts as a Bar Magnet When Carrying Current.pdf	Construct a solenoid, a wire coil capable of generating a magnetic field when carrying an electrical current. (Includes historical information.)
A Magnet Follows the Rotation of a Copper Disk.pdf	Discover how a rotating aluminum or copper disk affects a magnet's behavior. (Includes historical information.
Archimedes' Principle.pdf	Test Archimedes' Principle, or the Law of Buoyancy, to prove that the volume of water displaced by an object is equal to the volume of the object. (Includes historical information.)
Breathing Out Carbon Dioxide.pdf	Prove that carbon dioxide is released during exhalation using a limewater (calcium hydroxide) solution as an indicator. (Includes historical information.)
Brownian Motion.pdf	Observe the Brownian motion of very small particles as they are impacted by water molecules. (Includes historical information.)
Creating a Vacuum to Demonstrate Atmospheric Pressure.pdf	Create a vacuum using two plungers and petroleum jelly to demonstrate the principles of atmospheric pressure. (Includes historical information.)
Current, Voltage, and Resistance.pdf	Test Ohm's Law by measuring the relationship between resistance, voltage, and current using varying lengths of Nichrome wire. (Includes historical information.)
Discovery of Cells in Cork.pdf	Trace the discovery of cells by observing a thin slice of cork under a microscope. (Includes historical information.)
Discovery of Inflammable Air.pdf	Extract and test for hydrogen gas generated from the chemical reaction of zinc or iron and sulfuric acid. (Includes historical information.)
Discovery of Infrared Rays.pdf	Investigate the relationship between wavelengths of light and temperature. (Includes historical information.)
Discovery of Magnetic Dip.pdf	Construct and use a compass to calculate the angle of dip when locating magnetic north. (Includes historical information.)
Effect of Viscous Drag on Small Spheres Falling through Liquid.pdf	Investigate the effect of drag on the rate of descent of small spheres falling through a liquid. (Includes historical information.)
Electricity from Magnetism.pdf	Discover how electricity can be generated by passing a magnet over a coil of bell wire. (Includes historical information.)
How Rainbows Are Formed.pdf	Investigate the reflection and refraction of visible light through a water-filled flask. (Includes historical information.)
How the Motion of a Sound Source Affects The Pitch of the Sound Heard by an Observer.pdf	Discover how the pitch and volume of a constant sound appear to vary with the motion of the sound source. (Includes historical information.)
How We Perceive the World around Us.pdf	Demonstrate the importance of active exploration to correctly identify unseen objects. (Includes historical information.)
Mutual Induction.pdf	Discover the phenomenon of mutual induction, the ability of an electromagnetic field generated in one coil of wire to induce a current change in another coil of wire. (Includes historical information.)
Newton's Rings.pdf	Use the reflection of light to test the quality of a lens's shape. (Includes historical information.)
Objects of Different Masses Fall through a Vacuum at the Same Rate.pdf	Construct an apparatus to prove that in a vacuum, lack of air resistance allows two objects with different masses to fall at the same speed. (Includes historical information.)
Sound Does Not Travel through a Vacuum.pdf	Construct an apparatus that proves sound does not travel through a vacuum. (Includes historical information.)
The First Scientific Study of Musical Sounds.pdf	Explore how the pitch of a note is related to the tension and length of a string. (Includes historical information.)
The Movement of a Current-Carrying Wire in a Magnetic Field.pdf	Discover how an electrical current and a magnetic field interact to make an object move. (Includes historical information.)
The Periodic Time of a Pendulum Is Constant.pdf	Construct a simple pendulum and prove that the periodic time of its swing is constant and independent of the amplitude (length) of the swing. (Includes historical information.)
The Principle of Levers.pdf	Investigate the relationships between the weight of a load, the position of a fulcrum, the length of a lever, and the amount of effort necessary to lift a given object. (Includes historical information.)
The Right-Hand Grip Rule.pdf	Test the right-hand grip rule of electromagnetism to see the relationship between the directions of an electrical current and a magnetic field generated through a wire. (Includes historical information.)
The Voltaic Pile.pdf	Construct a voltaic pile capable of generating an electrical current out of zinc, copper, cardboard, and a salt solution. (Includes historical information.)
Two Parallel Wires Carrying Current in the Same Direction Attract, in the Opposite Direction Repel.pdf	Test the relationship between electricity and magnetism as current is passed through two parallel wires. (Includes historical information.
Velocity of Jets of Liquid Escaping from a Receptacle.pdf	Determine the factors that affect the shape and velocity of a stream of water escaping from a container. (Includes historical information.)
Vibration of Metal Plates.pdf	Generate and compare Chladni figures, different patterns created in fine sand, by sending different vibrations through a metal plate. (Includes historical information.)
White Light's Constituent Colors.pdf	Prove that white light is made up of seven different colored rays using a high-intensity flashlight, colored cardboard, and prisms. (Includes historical information.)