Unit 4 Week 4 Big Book

What does airships mean as it is used in paragraph 1 on page 349 of Hot Air Balloons?

• a boat with a gondola that floats on the water

• a balloon with frame and a gondola below that floats in the sky

• a hot air container that cannot carry people

• a sea boat with a balloon and a gondola that floats in the air

Which statement best supports the answer to Part A?

• "...propellers. Pilots could steer these new types..."

• "...tried flying and farther...could carry messages."

• "...used in war. Others were used for travel and the..."

• "...gas-filled balloon with a frame...in which people rode in"

How are the ideas in paragraph 2 and 3 on page 351 connected?

• by listing the steps to fly a hot air balloon

• by comparing the different temperatures of the air in the balloon

• by telling why a hot air balloon rises

• by explaining the fabric that the air balloon is made of

Which two details from Hot Air Balloons best support the answer to Part A?

• "...because the hot air trapped inside the balloon is lighter..."

• "Physics is the science of how things move."

• "Cold air is heavy. That means that hot air rises up in the sky.."

• "...science called physics helps us understand how hot..."

• "Air is all around you. You can't see it. But you can feel it..."

The ideas in paragarph 2 on page 353 are connected by explaining

• why the pilots pulls the cord to release air

• how the hot air is stored in the balloon

• how the balloon cannot carry people

• why the pilot fires the burner in the balloon

Choose which detail best supports the answer to Part A.

• "valve is a cut-out circle of nylon in the top of the balloon."

• "The flame grows bigger. It heats the air in the envelope..."

• "As more hot air escapes, the balloon sinks towards the ground."

• "a time if the balloon is big enough to lift them."

Read Paragraphs 1 and 2 on page 335 from the article. How does the author help the reader understand how the balloon rises and falls?

• listing the steps a pilot takes to control the ballon

• explaining how the pilot adds or releases hot air inside the balloon

• describing the different types of materials that the balloon is made of

• comparing the way a pilot heats and cools the air to move

Why does the author discuss the importance of weather when ballooning?

• to explain how the weather affects ballooning

• to describe what balloons are best for certain types of weather

• to compare the different wind speeds pilots need for ballooning

• to list the steps pilots take to prepare for ballooning