Reading 3: Key Vocabulary

The ________ of our city is very varied. All the buildings have different styles and designs.

• Architecture

• Gradual

• Infinity

• Numerals

I didn't notice the ________ growth of the oak tree outside. It occurred very slowly.

• Architecture

• Gradual

• Spirals

• Steep

The pattern of numbers continued to _______. It never ended.

• Architecture

• Infinity

• Spirals

• Steep

Sometimes we use Roman _______ to write numbers: IV (4), X (10), III (3)

• Gradual

• Numerals

• Steep

• Spirals

You can see ______ in the head of a sunflower. Some of these curves go clockwise, and some go counterclockwise.

• Steep

• Spirals

• Numerals

• Infinity

The steps are very ______. Each one is over a foot high.

• Architecture

• Spirals

• Infinity

• Steep

In class, we use Roman ______ when me make an outline.

• Spirals

• Numerals

Many patterns end, while others go on and on to ______.

• Architecture

• Infinity

Seashells form _______, not straight lines.

• Spirals

• Numerals

A _____ increase occurs bit by bit, and not all at once.

• Gradual

• Steep