Weather Instuments. Thermometer Thermometers measure air temperatures. Thermometers work because matter expands when heated. Most thermometers are closed.
Scientist use tools to measure the weather. Tools to measure the weather Tools to tell how warm the air is. Tools to tell how fast the wind is blowing.
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Going PLACES (Participatory Learning And Creative Education in Sustainability): Our Trip to India, Summer 2004 Trip Participants: Students: Michael Whitaker,