Nat Geo 4 Unit 5 Summative

Match each word to its definition.

• the reason something exists

• Expert

• something operated from a distance

• Purpose

• something done with effort or skill

• Remote

• a person who has skill in an area

• Pioneer

• first person to explore new areas

• Achievement

Complete the sentences with THE if necessary. If not, choose x.

Roald Amundsen reached​ (a)   South Pole in 1911. Pioneer Amelia Earhart disappeared during her flight to ​ (b)   Australia.

• the
• x

Complete the sentences with THE if necessary. If not, choose x.

Charles Darwin discovered many new species of animals in ​ (a)   Galapagos Islands. ​ (b)   Mount Annapurna is one of the most dangerous mountains to climb.

• the
• x

On July 16, 1969, a rocket carrying three American astronauts, Neil Armstrong, Michael Collins, and Buzz Aldrin, ​ (a)   for the moon.

• had taken off
• landed on Mars
• returned to Earth
• exploded mid-air

Each of the astronauts ​ (a)   to space once before.

• had been
• will go
• is going
• has gone

The astronauts ​ (a)   for almost four days when they saw the moon.

• had been traveling
• were playing
• were sleeping
• were eating

Neil Armstrong ​ (a)   on the moon when Buzz Aldrin joined him.

• had been walking
• was playing golf
• was eating lunch
• was taking a nap

The astronauts ​ (a)   a message and a flag on the moon.

• had left
• forgot to send
• dropped a rock
• took a selfie

Piccard and Borschberg have traveled around the globe on Solar Impulse 2.

• True

• False

Piccard and Borschberg want travelers to be friendlier to the environment.

• True

• False