Hot and Cold

You may describe the weather to be hot or cold. This is also how we think of temperature . Even though the temperature changes every day and every season, the Earth's temperature is always in the right range to support life.

The air feels colder as you climb up a mountain. This happens because the temperature decreases as you move away from the surface.

Scientists measure temperature with a thermometer. They are placed in the shade because they will tell the wrong temperature if it is in direct sunlight.

Last modified June 11, 2010 by Becca Hatheway.

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