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| a device for sending and receiving sounds, especially speech |
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| an instrument that makes the sound louder |
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| a small piece of semiconductor material carrying many integrated circuits |
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| an instrument with powerful lenses that magnifies very small things |
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| a picture taken by a camera on film and then developed on paper |
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| a machine that picks up and reproduces the sounds that have been recorded in the grooves cut into a record |
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| a diagram that shows the relationship between numbers or amounts |
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| a unit of length in the metric system |
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| a unit of length in the metric system equal to 1,000 meters, about 0.6 miles |
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| a piece of equipment with a screen that recieves and shows |
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| in the metric system, a measure equal to 1/1000 gram |
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| a device or system for sending messages over long distances |
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| the study of the earth, including its people, resources, climate, and physical features |
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| all the letters of a language arranged in order |
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| a passenger vehicle that usually has four wheels and is powered by an engine |
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| a person who travels beyond the earth's atmosphere |
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| a vehicle that has pedals like a bicycle but only one wheel and no handlebars |
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| a book that tells someone's life story |
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| the scientific study of living things |
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