Wordly Wise 5 lesson 9

Complete the sentence.

The air inside a hot-air balloon is heated. This makes it less _____________ than the surrounding cooler air and causes the balloon to rise.

Tags

CCSS.RI.3.10

CCSS.RI.4.10

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

Complete the sentence.

In 1783 a large crowd assembled to watch the Montgolfier brother's hot-air balloon. Among the _______ were members of the French royal family.

Tags

CCSS.L.11-12.4B

CCSS.L.9-10.4B

CCSS.L.K.4B

CCSS.RF.1.3F

Complete the sentence.

The Montgolfier brothers' hot-air balloon reached a height of 1,500 feet. Its flight ___ after it had been in the air for eight minutes.

Tags

CCSS.L.2.4B

CCSS.L.3.2E

Complete the sentence.

Unlike a kite, the Montgolfier brothers' hot-air balloon was not attached to the ground. People watched in amazement as the balloon ____ to a great height.

Tags

CCSS.L.1.6

CCSS.L.3.6

CCSS.L.K.5A

Complete the sentence.

A sheep, a duck, and a rooster were the first airborne creatures. Two months later, the first human flight in a balloon took place, a truly ___ act.

Complete the sentence.

By 1900, there was a great competition to build a successful heavier-than-air flying machine. The first to ____ this goal would be famous.

Tags

CCSS.L.2.4B

CCSS.L.3.2E

Complete the sentence.

The wright brothers made and repaired bicycles for a living. They ____ their work on bicycles to concentrate on building a heavier-than-air flying machine.

Tags

CCSS.L.2.4B

CCSS.L.3.2E

Complete the sentence.

Some early aircraft had as many as six wings, stacked above each other. Such airplanes were too ____ to ever get off the ground.

Tags

CCSS.RI.3.10

CCSS.RI.4.10

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

Complete the sentence.

Modern aircraft have rigid wings. Early attempts to ____ the flapping or birds' wings ended in failure.

Tags

CCSS.RI.3.10

CCSS.RI.4.10

CCSS.RI.5.10

CCSS.RI.6.4

CCSS.RI.7.4

Complete the sentence.

The first designers had a problem in trying to reduce the plane's weight. The lighter the aircraft, the more ___ it was.

Tags

CCSS.L.4.5

CCSS.L.5.5