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States of Matter Why is glass sometimes called supercooled liquid? How does surface tensionallow a water beetle to walk across the surface of a pond without sinking? Howdoes ... »
Changing Materials Why was aluminum once more valuable than gold? Why are some buildings built ongiant springs and where can they be found? Why does a nuclear waste remainhazar... »
Materials Technology Looks at physical and chemical changes as well as properties of different »
Separating Materials How can trickles of surface water dissolve rock and create huge cavesunderground? What are colloids and why are they floating in the milk you drink?How do we... »
Earth's Shifting Surface Earths Shifting Surface shows you how the surface of Earth is constantlymoving beneath your feet. You will learn what causes the movements in Earthscrust. Yo... »
Dna And Genetic Engineering The living world is all about cells working together. This series explores allaspects of cells including how they specialize to perform different tasks fromf... »