El Nino & La Nina

In the Australia, El Nino conditions impact weather by increasing likelihood of these weather conditions on the east coast:

• a. low rainfall and high temperatures

• b. fewer cyclones

• c. increased fire danger

• a, b & c

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Which best describes El Niño?

• The water in the Pacific Ocean gets warmer than normal and causes fewer hurricanes to form.

• The water in the Pacific Ocean gets colder than normal and causes more hurricanes to form.

• The water in the Pacific Ocean gets colder than normal, and the flow of the jet stream is disrupted.

• The water in the Pacific Ocean gets warmer than normal, and the flow of the jet stream is disrupted so that warmer water moves further east towards to Americas.

Tags

NGSS.MS-ESS2-6

What causes La Nina?

• cooling of water in the Atlantic Ocean off the coast of South America
• cooling water off the Atlantic coast of the US
• cooling water in the Pacific Ocean off the coast of South America
• warm water in the Pacific Ocean off the coast of South America

Tags

NGSS.MS-ESS2-6

In an El Nino event in Australia the SOI is strongly ____________ and the air pressure in Darwin is _________ that in Tahiti

• Positive, Higher
• Negative, Higher
• Positive, Lower
• Negative, Lower

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

In a La Nina event, the SOI is strongly ___________ and the air pressure in Darwin is _____________ than in Tahiti

• Positive, Lower
• Positive, Higher
• Negative, Lower
• Negative, Higher

Tags

NGSS.MS-ESS2-6

During a La Nina event, the trade winds blow ___________________.

• West to East
• East to West

Tags

NGSS.MS-ESS2-6

During an El Nino event trade winds blow ________________

• West to East
• East to West

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

La Nina causes ________________ rainfall in Australia

• higher than average
• lower than average
• average

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

El Nino causes ________________ rainfall in Eastern Australia

• higher than average

• lower than average

• average

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

An El Nino in Australia causes ___________________ rainfall

• above average
• below average
• average

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6