Ceiling Sprinkler, What Makes a Candle Burn, Bacteriophage, Stripper Deck, Atari Computer, Elk Project, How you See, Ruler Balance. Mr.Wizard shows Tanis a ceiling sprinkler set up on a stand. He points out the plug made of a special combination of metals that melt at a specific temperature. This one melts at 160º C.

Steel Wool Fireworks, Blow Card off Spool, Firefly Trickery, Chewing String Together, Fingerprint Find, Mt. St. Helens Erupts, Logo Program, Hydraulics. Leila is surprised to see steel wool burning. Mr. Wizard has arranged things to show her that oxidation, the combining of a material with oxygen, can take place even with things that normally you think won't burn.

Light on a String, Pin Piano, Moldy Orange, Word Processing, Tree Mower, Mobius Loop, Meteor Portrait, What Makes the Wind Blow, Drawing and Ellipse. Tanis is amazed to see the image of an elephant on a vibrating piece of string. Mr.Wizard explains that light is invisible. We see it only when it is reflected from an object.

FIBER OPTICS - A pin is attached to the end of a pencil which is held under water in a glass. UNFLIPPABLE PAPER - Mr.Wizard folds a piece of stiff paper to form a bridge and challenges Jason to blow under the paper and flip it over. EGG and SPERM - Scientists use the sea urchin to study the process of fertilization. LYCOPODIUM - Tanis to reach into an aquarium without getting her hand wet. EARTH and SUN - Jason looks at a diagram of the Sun and the Earth. KITCHEN CHROMATOGRAPHY - Leila is shown samples of paper chromatography. COLEUS LEAF - This is part of a plant and because it's so colorful, you might think it's a flower. But it's not. STEAM ENGINE - Mr. Wizard points out that they are going to make it into a steam engine using a tea kettle. SOLAR PROPELLER - Tanis places her hand over the small circle in the center of a solar propeller. CARD and BOTTLE - An experiment with Arlette relating to water/air pressure.

Speed of Sound, Selective Refraction Trick, How Many Stars, Glass Duet, Spelling Checker, After a Forest Fire, Window Oscillation, Asparagus, Finding a Tree's Height. Mr. Wizard measures the difference between hearing the sound of a starter pistol over the walkie-talkie and hearing it through the air.

Light Bulbs vs. Iron, Unusual Water, Electron Microscope, Logo Variables, Grasshopper's Eyes, Plaster Cast, Pour Air, River Otters, Blow Weight. Mr. Wizard and Stacey stand behind a row of 100-watt light bulbs numbered 1 to 14. They are going to find out how much electricity is used around the house when various appliances are plugged in.

Model Rocket, Glass Bending, Plastic Glass Phone, Giant Model Train, Tie Knot in Rope, Gelatin and Balloon, Dot Matrix Printer, Marble on Plate. MODEL ROCKET - Jason, who has launched many rockets with his father, shows Mr. Wizard the various parts of the rocket and how to launch one safely. GLASS BENDING - Mr.Wizard and Tanis discuss the unusual properties of glass.

Electrocuted Hot Dog, Household Levers, Fly's Feet, Magic Number, Oil Lamp, Chocolate Journey, Quartz Watch, Mass vs. Weight. Leila describes the various ways to cook a hot dog: boiling. fry, and baking in an oven. Mr. Wizard says they are going to electrocute one.

Polarizing Light. Jet Propelled Boat, Fat Mice, Underwater Safari, Bee Stinger, Rock Tumbler, Spider's Trap, Computer Shield, Mystery Mounds, Boil Water with Ice Cube. Mr. Wizard shows Leila how polarizing filters work with the passage of light.

Rainbow creation, Hard Boiled vs. Fresh Egg, What is This, Mothball Frost, Random Computer Numbers, Wildlife Center, Nutty Surprise Reaction, Weightless Clothespins, Plastic Water Bottle Fountain, and more. Heather comes upon Mr. Wizard sprinkling the lawn. He asks her to describe a rainbow. He notes that a rainbow is formed when there are tiny drops of moisture in the air, and you look at them with the sun behind you.

Hydrogen Air and Helium, What is This, Uses for Static Electricity, Ruler and TV Screen, Blast Engineering, Bone Strength, How Many Oceans, Straw Challenge. Jason stands behind three balloons, two floating upward and one hanging downward from a bar. One balloon is filled with helium, the next, hydrogen and the third, a combina­tion of air and carbon dioxide.

Liquid Nitrogen, Sweater Reversing, What is This, Robot Sensor, Firefighter's School, Singing Glasses, Potato Float. Christian dips a carnation into a bowl of liquid nitrogen, pulls it out, and hits it against the table. The flower shatters into many tiny pieces as if it were made of glass.

Static Electricity, Lifting Cups, Parrots of Puerto Rico, A Lesson in Gravity, Pulleys, Hypo Crystals, Glue from Milk, Home Made Record Player. Mr. Wizard shows Nicola some fun tricks with the Van de Graaff generator. LIFTING CUPS - Mr.Wizard challenges Leila to pick up two plastic drinking glasses with a balloon. She thinks it's impossible.

Roller Coaster Popcorn, Schlieren Photo, Pond Safari, Range Fires, Computer Voice, Deadliest Mushroom, Arms in Doorway, Two Bottle Quiz, Conductors. At an amusement park, Mr. Wizard has made arrangements for Christian to ride on a roller coaster that loops upside down. Mr. Wizard has given Christian a container of popcorn.

Hero's Engines, Potato Printmaking, Lions, Scissors and String Puzzle, Gum Drop Joints, Orion, Computer Illustration, Hot/Cold Hands. Mr. Wizard describes the Greek philosopher, Hero, who invented an engine. A model of it is a flask with two glass tubes coming from opposite sides. It's hanging by a string from a lab stand.