An instrument that measures temperature. The numbers are a scale which show the temperature in degrees Fahrenheit or degrees Celsius.
What is a thermometer?
100
Water, ice, hail or snow falling from the clouds back down to Earth.
What is precipitation?
200
Look like commas or wisps of hair high in the sky. Form when the air rises high enough for ice crystals to form.
What are Cirrus clouds?
200
Modern windmills that generate electricity.
What are wind turbines?
200
How hot or cold it is. This changes almost all of the time. It is usually warmer during the day than it is at night. We measure this with a thermometer.
What is temperature?
300
Puffy clouds that look like cauliflower. The form when large areas of warm, moist air rises upward from Earth's surface.
What are Cumulus clouds?
300
This instrument shows what direction the wind is coming from. The letters show which way is north, south, east, and west. If the arrow is pointing north, that means the wind is blowing from the north.
What is a wind vane?
300
The weight of the air around earth pressing down on the Earth's surface. This lessens as you move higher up in the atmosphere. The higher you are the less air is pushing down on you.
What is air pressure?
400
Flat, gray blankets that seem to cover the sky. Form when a flat layer of warm, moist air rises very slowly.
What are Stratus clouds?
400
An instrument used to measure air pressure.
What is a barometer?
400
The amount of water vapor in the air. When the water vapor is high, the air feels sticky.
What is humidity?
500
When water vapor rises into the atmosphere, cools, and turns back into tiny water drops. These tiny water drops form clouds.
What is condensation?
500
This instrument is used to measure wind speed. Wind pushes small cups and makes part of this instrument spin. The faster it spins the stronger the wind is blowing.