Experiment on Convection Currents

What happens to the blue ice cubes after about twenty seconds?

• They freeze

• They melt

• They float

• They disappear

What does the red water do in the tank?

• Sinks to the bottom

• Rises up and across the top

• Stays in place

• Mixes with the blue water

What tool can Carlos use to help predict the weather for Saturday?

• A thermometer.

• A weather map.

• A rain gauge.

• A barometer.

What type of front is represented by red semicircles on a weather map?

• Cold front

• Warm front

• Rain

• Snow

What weather condition is represented by diagonal blue lines on a weather map?

• Cold front

• Warm front

• Rain

• Snow

On Friday morning, Carlos sees the weather map on the news. Select the two best predictions Carlos can make about the weather.

• It will rain.

• It will snow.

• It will get colder.

• It will get warmer.

• It will be sunny.

How are air masses classified based on moisture content?

• By their color

• By their size

• As maritime or continental

• As hot or cold

What does "continental" refer to in air mass classification?

• Wet air masses over oceans

• Dry air masses that form over continents

• Warm air masses in the tropics

• Hot air masses near the equator

Which air mass is extremely cold and forms over frozen regions?

• Tropical (T)

• Equatorial (E)

• Arctic or Antarctic (AA)

• Maritime (m)

What type of air mass is described as cold and forms in higher latitudes?

• Polar (P)

• Tropical (T)

• Equatorial (E)

• Maritime (m)