Acids And Bases
Acids and Bases »

Illustrated Dictionary of Chemistry
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Sound
What are vibrations? How do musical instruments make sounds? Why do we have twoears? Investigate encourages science enquiry with an interactiveinvestigative ... »

Space Watch: The Sun
Space Watch »

Moon
Moon »

Mixing And Separating Materials
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Heating
What makes a material melt? Why are there bubbles in boiling water? What aresome sources of heat? Read Heating to learn about the different ways we canheat m... »

Shaping Materials
Shaping Materials »

Pulleys
Pulleys »

100 Things You Should Know About Volcanoes
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