It’s simple and fun to make your own dirty snowball and, in the process, learn what comet are composed of and how they move through space!
Subjects: Earth Science
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Falling to Earth Due to Gravity
The ‘monkey gun’ demonstration is a striking example of gravity at work, illustrating how all objects fall at the same rate, even if they’re not falling straight down.
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The Amazing Dipping Duck
Explore what makes the dipping duck dip, and what it can tell us about the weather!
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Striking Gold!
Learn about the properties of the remarkable metal by panning for gold and plating gold onto metallic objects.
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Build a Working Compass
With a magnet, and needle, and a bowl of water, you can tie in to the earth’s magnetic field!
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Why Does the Wind Blow?
Air has mass and exerts pressure on the earth’s surface. Differences in pressure cause the air to move! These demonstrations illustrate just how considerable that pressure can be!
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An Introduction to Biodiversity
The introductory phase introduces biodiversity to the students and emphasizes, with examples, the diversity and variability of living things. Once students are made aware of the impacts on biodiversity, they can then be presented with practical methods where individuals and community groups can work towards overcoming current impacts on biodiversity. By detailing positive examples, students are then encouraged to think for their future and the future of their community.
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Transportation Systems in Animals
This program explores the need for multicellular animals to have specialized internal transport systems. These are systems that can efficiently distribute materials to and from all parts of the body, providing nutrients to cells and removing waste products. They also provide the vital link with the exchange (respiratory and excretory) systems. The evolutionary aspect of internal transport mechanisms is discussed. Following this is a detailed look at circulatory systems, including the differences between the closed systems of vertebrates and the open systems of invertebrates.
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Frontline: The Quake – Public Performance
On January 12, 2010, Haiti was leveled by one of the most devastating earthquakes in recorded history. Those responsible for handling the catastrophe, including the Haitian state and the United Nations, were crippled by the magnitude of the disaster and struggled to respond. In the confused aftermath, survivors were left without food, water or shelter. FRONTLINE correspondent Martin Smith and team arrived in Port-au-Prince within days, and in this powerful report, bears witness to the disaster and the ill-coordinated relief efforts in the poorest country in the Western hemisphere. Drawing on interviews with key officials and humanitarian experts from Port-au-Prince to New York, The Quake asks, can the world do better? And how?