Toss Ball on Bike, Earth Speed, Ginko Tree, Organism Clean Up Pollution, Water Pressure, and more. Mr. Wizard explains how to Toss Ball on Bike, Ginko Tree, Glass Pane Copier, Earth Speed, Height of Tower, Organism Clean up Pollution, Water Pressure Puzzle, One Half Puzzle, and Temperature Around the House.

Mr. Wizard explains Pond Animals (Explores micro pond life through a microscope with Tarek. Flatworms swimming in a small tank are projected onto a TV screen by Mr. Wizard’s microscope setup), Iron In Cereal, Balloon in Bottle Trick, Nut Light, Stalactites, Light in Microwave, Paper Tube Kazoo, and Steam Burns Paper.

Erin reads the temperature in the room from a wall thermometer: 23° Celsius. Mr. Wizard says she is going to use that temperature to find the lowest possible temperature in the universe. Mr. Wizard explains Absolute Zero, Campfire Chemistry, Milk Colors, Tower of Salt, Copperplating, and Electrocuted Pickle.

Damon has brought his dog to the den and Mr. Wizard describes the positive reinforcement system for training animals developed by B.F. Skinner. Mr. Wizard explains Dog Training, Super Ball, Cell or Battery, Lock & Key, Tagging Ants, Sugar Test, Orange Precipitate, Minipigs, Rattlesnake Navigation, and Liquid Color Change.

Mr. Wizard asks Sarah to define a chair. She says it is something to sit on. Mr. Wizard mentions a bed, sofa, and stool all of which Sarah says are not chairs for one reason or another. Mr. Wizard explains the Meaning of Words, Mechanical Heat, Microwave Plant Drier, Foucault Pendulum, Songbird Study, Dry Ice Color Change, and Balloon Blast.

Christina enters and asks why she was to have her hair pinned back and her sleeves rolled up. Mr. Wizard explains they are going to be investigating fire and hair and sleeves should be safely out of the way. Mr. Wizard explains Fire Triangle, Buzzing Button, Monkey Helper, Logic Switches, One Perfect Kilogram, Animal Models, Microscopic Organism and Making Nylon Thread.

Through a series of graphic demonstrations, Mr. Wizard and Shan define what a dot means, whether in musical notation, typographic setting or in mathematics a dot is based on its surroundings. Mr. Wizard explains the Meaning of a Dot, Singing Rod, Mars Ball, Shaking Color, Light Activated Weed Killer, Bright Spot Tester, Taking Water Apart, Red Wolf, and Foaming Color Changes.

A line has been drawn down the center of a mirror. Clara is to her keep nose on the line while moving a leg to one side. When she does, her nose moves off the line on the mirror. Mr. Wizard explains, Human Center of Gravity, Growing Vegetables, Salt Shaker Balance Trick, Investigating Arson, Thermostat, Microscopic Spirogyra, Eagles and Power Lines, and Moire Patterns.

Andrew on his bicycle meets Mr. Wizard who has him mark a section on the front wheel with a piece of tape. Andrew turns the wheel until the marked section is on the ground. Mr. Wizard explains Wheel Travel Part 1&2, Torque Rod, Balance, Hinged Stick & Ball, Tie a Bone Into a Knot, Orange Juice Canon, Circumference Puzzle, Coloring Carnations, Ice Age, and Sodium Metal

On a large board are categories of animals with some of their major characteristics listed, but with the pictures of the animals covered. The two main groups are Backbone and No Backbone. Mr. Wizard explains Animal Classification, Dipping Birds, Blue Duikers, Inside a Bathroom Scale, Rising Liquid Puzzle, Forks into Church Bells, Alligator Courtship, and Ice Bomb.

Mr. Wizard explains to Shan how the principle of siphoning works by using measured beakers of liquid connected by a curved tube. Paper Airplanes, Marshmallow Burn, Microscope Hydra, and more.

Kellie briefly describes objects on the counter that they are going to examine under the microscope: plastic ruler, fingerprint, feather, some mud, and a flea. Magnifying 25X, Pretzels, Electricity, Straw through Potato, Inertia, and more.

Sarah is not sure of the meaning of the word density, but has referred to someone as dense meaning thick-headed. Mr. Wizard shows Density Gradient, Microscopic Vorticella, Paper Plate Tops, Sound of Thirsty Plants, Greenhouse Effect, Fractal Geometry, Slime & Disappearing Cup, Shark Movement, and Vacuum Fountain.

Tarek comments on how big the flower on the television screen is compared to its actual size. Mr. Wizard quickly traces the path from the actual flower, through the lens and TV camera to the TV screen. Mr. Wizard explains - Microscopic Images, Storage Battery, Indoor Orchard, Dough Sculpting, Turkey Dinners, How Fast is a Cockroach, The Length of a Snorkel, and Aladdin's Lamp.

Mr. Wizard tells Lorilee that people lost in the wilderness have a tendency to walk in a circle. They are going to find out if it’s true. He blindfolds her and asks her to walk to a marked tree. Mr. Wizard explains - Walking in Circles, Steel Wool Test, Engineering Exam, A Fan in Slow Motion, 3D Magnet, Tree Branch Cover Part 1, Supermarket Batteries, Medicine You Wear, Leeches, and Hydrogen Reaction