3-2-1 Contact (1980) : 1x5
Noisy/Quiet: Range of Vibration
30 Min.
Overview
Lisa, Marc, and Trini are given a puzzle. They hear a bell ring and, as instructed, put the bell in a closed jar and take out some of the air with a vacuum pump. Since they don't hear the ringing, they begin to wonder: Is the bell broken?
-
1 - 1Noisy/Quiet: Production & Processing of Sound January 14, 1980 -
1 - 2Noisy/Quiet: The Ear January 15, 1980 -
1 - 3Noisy/Quiet: How People & Animals Use Sound January 16, 1980 -
1 - 4Noisy/Quiet: Music January 17, 1980
-
1 - 5Noisy/Quiet: Range of Vibration January 18, 1980
-
1 - 6Forces and Motion March 24, 1980
-
1 - 7Forces and Fields March 25, 1980
-
1 - 8Forces: Buoyancy and Gravity March 26, 1980
-
1 - 9Forces and Machines March 27, 1980
-
1 - 10Forces: A Spectacle of Forces March 28, 1980
-
1 - 11Growth/Decay: Sex and Seeds March 10, 1980
-
1 - 12Growth/Decay: Human Growth March 11, 1980
-
1 - 13Growth/Decay: Decay March 12, 1980
-
1 - 14Growth/Decay: Human Cultures/Land Forms March 13, 1980
-
1 - 15Growth/Decay: Cycles Upon Cycles March 14, 1980
-
1 - 16Fast/Slow: Speed Up, Slow Down January 28, 1980
-
1 - 17Fast/Slow: Rhythms of Nature January 29, 1980
-
1 - 18Fast/Slow: Lifetimes January 30, 1980 -
1 - 19Fast/Slow: Speed and Racing February 07, 1980
-
1 - 20Fast/Slow: Time and Time Again February 01, 1980
-
1 - 21Communication: Human Communication March 17, 1980
-
1 - 22Communication: Animal Communication March 18, 1980
-
1 - 23Communication: Machinery of Communication March 19, 1980
-
1 - 24Communication with Other Species March 20, 1980
-
1 - 25Communication: Feedback March 21, 1980
-
1 - 26Food/Fuel: Animal Food February 04, 1980
-
1 - 27Food/Fuel: Human Food February 05, 1980
-
1 - 28Food/Fuel: Growing and Processing Food February 06, 1980
-
1 - 29Food/Fuel: Fueling Machines February 07, 1980
-
1 - 30Food/Fuel: The Sun Makes Everything Go February 08, 1980
-
1 - 31Hot/Cold: People's Temperatures January 21, 1980
-
1 - 32Hot/Cold: Animal and Plant Adaptations January 22, 1980
-
1 - 33Hot/Cold: How Hot or Cold Can It Get? January 23, 1980
-
1 - 34Hot/Cold: Heat and Work January 24, 1980
-
1 - 35Hot/Cold: Temperatures on Earth/In Space January 25, 1980
-
1 - 36Light/Dark: The Sun February 18, 1980
-
1 - 38Light/Dark: Electromagnetic Spectrum February 20, 1980
-
1 - 39Light/Dark: The Eye February 21, 1980
-
1 - 40Light/Dark: Light Sources February 22, 1980
-
1 - 41Near/Far: Seeing Isn't Always Believing March 03, 1980
-
1 - 42Near/Far: Mapping and Navigating Near Home March 04, 1980
-
1 - 43Near/Far: Mapping and Navigating Over Earth March 05, 1980
-
1 - 44Near/Far: Space Travel March 06, 1980
-
1 - 45Near/Far: Knowing Where You Are March 07, 1980
-
1 - 46Order/Disorder: Regular Patterns March 31, 1980
-
1 - 47Order/Disorder: The Body – An Ordered System April 01, 1980
-
1 - 48Order/Disorder: Social Order April 02, 1980 -
1 - 49Order/Disorder: Disordered April 03, 1980
-
1 - 50Order/Disorder: Sum of Its Parts April 04, 1980
-
1 - 51Surfaces: Protection April 07, 1980
-
1 - 52Surfaces: Shapes and Functions at the Surface April 08, 1980
-
1 - 53Surfaces: Surface Tension and Bubbles April 09, 1980
-
1 - 54Surfaces: Surface of the Earth April 10, 1980
-
1 - 55Surfaces: The Atmosphere April 11, 1980
-
1 - 56Big/Small: Animal Sizes/Scaling February 25, 1980
-
1 - 57Big/Small: Animal Habitats February 26, 1980
-
1 - 58Big/Small: Dinoaurs February 27, 1980
-
1 - 59Big/Small: Volume & Efficiency February 28, 1980
-
1 - 60Big/Small: How Big is Big? February 29, 1980
-
1 - 61Crowded/Uncrowded: Human Crowding February 11, 1980
-
1 - 62Crowded/Uncrowded: Optimum Populations in Nature February 12, 1980
-
1 - 63Crowded/Uncrowded: Contrasts in Densities of Materials February 13, 1980
-
1 - 64Crowded/Uncrowded: Down Among the Atoms (Liquids & Solids) February 14, 1980
-
1 - 65Crowded/Uncrowded: Human Survival/Controlling Densities February 15, 1980