Eureka! Episode 30 - Radiation Spectrum

Viewers learn that the waves of heat energy radiated by the sun come in many forms, which together make a band, or spectrum, of energy waves.

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Eureka! Episode 29 - Radiation Waves

Viewers learn that one of the chief ways in which heat energy moves is in the form of waves. This kind of heat transfer is called radiation.

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Eureka! Episode 28 - Heat as Energy

Heat is produced whenever there is movement and friction between two objects. Since movement is a form of energy, it follows that heat must also be a form of energy.

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Eureka! Episode 27 - Convection

This program explains how the principle of buoyancy is responsible for the process of heat transfer called convection.

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Eureka! Episode 26 - Buoyancy

Showing viewers that objects immersed in a liquid are buoyed up by a force equal to the weight of the liquid displaced, this program explains the principle of buoyancy.

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Eureka! Episode 25 - Volume & Density

This program explains that volume refers to the amount of space an object envelops and that density refers to the amount of mass that is compacted in a given volume.

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Eureka! Episode 24 - Heat conduction

Eureka! looks at the process of conduction, explaining that the application of heat to an object makes the molecules or atoms vibrate faster and cause a sort of "domino effect."

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Eureka! Episode 23 - Electrons

Using an animated model of an atom, Eureka! illustrates how electrons whiz so quickly round the nucleus that they appear to form layers.

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Eureka! Episode 22 - Atoms

This program explains that molecules are made up of atoms. In pure metals, all the atoms are arranged separately in a lattice-work pattern, but in most non-metals, liquids, and gases, the atoms are bunched together into molecules.

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Eureka! Episode 21 - Temperature vs. Heat

Eureka explains that heat refers to quantity of hotness, and is determined by the mass and speed of molecules. This program demonstrates that a bucket of water at a temperature of 50°C contains more heat than a cup of water at 100°C.

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Eureka! Episode 20 - Measuring Temperature

Eureka! shows viewers how Swedish scientist Anders Celsius invented the Celsius thermometer, using the expansion of mercury as a measure of temperature.

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Eureka! Episode 19 - Expansion and Contraction

Using balloons to illustrate the process, Eureka! shows how, when matter gets hot, its molecules go faster and the solid, liquid, or gas expands. Conversely, when matter gets cold, its molecules go slower, and the solid, liquid, or gas contracts.

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Eureka! Episode 18 - Evaporation and Condensation

A goldfish bowl filled with water demonstrates the process of evaporation, in which speeding molecules escape from a liquid to form a gas.

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Eureka! Episode 17 - Molecules in Liquid

As molecules in a solid get hotter, they vibrate faster and faster and eventually slip out of their lattice-work pattern. When this occurs, the substance melts, changing from a solid to a liquid state.

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Eureka! Episode 16 - Molecules in Solids

This program defines the three states of matter, and illustrates the lattice-work pattern of molecules in solids.

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Eureka! Episode 15 - The Pulley

Eureka! shows viewers how a pulley works to lift a heavy object. If you double the number of ropes supporting the weight, you double the mechanical advantage.

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Eureka! Episode 14 - The Screw and The Wheel

This program provides examples and definitions of a screw and a wheel; a screw is simply a twisted inclined plane; a wheel is simply a circular lever, whose fulcrum has become an axle.

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Eureka! Episode 13 - Mechanical Advantage and Friction

Professors A and B compare the mechanical advantage of an inclined plane with that of a lever.

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Eureka! Episode 12 - The Lever

Eureka! demonstrates the principle of the lever: "The longer the arm of the lever to which force is applied, the less that force need be."

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Eureka! Episode 11 - The Inclined Plane

This program demonstrates how an inclined plane allows you to trade increased distance for decreased force.

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