Weather Review Test

"It feels like it is going to rain today", said Billy's mother. Rain may seem on the horizon when there is low pressure. Pressure readings tell us how much force the atmosphere exerts per unit area. Scientists use a device like the one above, a ___________, to track the changes in pressure.

• anemometer

• thermometer

• barometer

• hydroscope

Barometers have long been used to predict the weather. Jay and Jeff were responsible for recording the class weather data each day in March. This particular morning, they tapped the barometer and noticed that the indicator needle did not move. What clue did the barometer give the boys about the up-coming weather?

• The stillness means a tornado is approaching.

• The barometer holding steady means present weather conditions should continue.

• A severe low pressure is coming and bringing a storm.

• The barometer holding steady means a low pressure is slowly approaching.

Jose and Richie were responsible for recording the class weather data each day in March. This is how the wind sock looked when they went out this morning. What direction is the wind blowing from?

• west

• south

• east

• north

Noah and Rachel were responsible for recording the class weather data each day in March. The other students told them that a severe rainstorm was fast approaching. Which weather instrument could Noah and Rachel use to confirm what the other students told them?

• A barometer because a rapid drop in barometric pressure indicates a storm approaching.

• A sling psychrometer because change in relative humidity indicates a storm approaching.

• A thermometer because a rapid increase or drop in temperature indicates thunderstorms.

• A wind vane because windy weather means a storm is approaching.

Several weather instruments are shown. Select the tool that is the LEAST helpful for predicting the weather by clicking on the image.

• windsock

• thermometer

• rain gauge

• barometer

Barometers have long been used to predict the weather. Felix and Toga were recording the class weather data each day in March. One day, they noticed that barometric pressure dropped down very, very quickly. What type of weather should Felix and Toga expect soon?

• clearing

• fog

• rain

• cold temperatures