Hydrocarbons
A large and varied group of organic compounds composed only of carbon and hydrogen.
Glossary
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Line spectra
A set of well-defined lines within the electromagnetic spectrum, emitted by hot or excited matter.
Glossary
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What is a Food Chain?
The journey through a food chain, from producers to consumers.
CURRICULUM
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How Do Carb-Free Diets Work?
Can we survive without one of our food staples, carbohydrates?
CONTEXT
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Fossil Fuels: Formation
How the fossil fuels we use today were formed over millions of years.
CURRICULUM
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Launch window
The time period within which a rocket must be launched to achieve the desired goal.
Glossary
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