Unit 2 Review

Multiple Choice

1. According to the text, what is the first step you should take after coming up with an idea for an invention?

• A. decide how the invention will look

• B. ask others what they think of the idea

• C. find the materials for the prototype

• D. write down the idea for the invention

Multiple Choice

2. What is the main idea of paragraph 2?

• A. Artists usually sketch prototypes before they paint.

• B. Inventors use prototypes to improve their design.

• C. Prototypes should be created by skilled artists.

• D. Prototypes are cheap and easy to change.

Multiple Choice

3. Why did Leo test out his idea on his friends?

• A. to show off his idea

• B. to see how well his design would work

• C. to make them laugh

• D. to learn what they like on their pizza

Multiple Choice

4. Read this sentence from paragraph 9.

And if someone wanted to order a pizza with nine different toppings,

how could the designer be sure that all of the toppings were visible?

What is the meaning of the word visible?

• A. able to be seen

• B. able to be eaten

• C. able to be moved

• D. able to be touched

Multiple Choice

5. Which detail would be most important to include in a summary of

paragraphs 6–9?

• A. Leo used sticky notes to help organize his ideas.

• B. Leo found the design of the toppings difficult to create.

• C. Leo drew his second sketches in black and white.

• D. Leo improved his design after showing Sylvie his ideas.

Multiple Choice

6. Read these sentences from paragraph 11.

But Leo didn’t take the next step alone. He collaborated with his sister.

What is the meaning of the word collaborated?

• A. traveled

• B. argued

• C. cooperated

• D. discovered