Chapters 9-12
Chapters 13-15
Chapters 16-18
Chapter 18-20
Chapters 20-22
100

Why can't Percy's fly?

(Chapter 9)

Zeus hates him and the sky is Zeus' territory.

100

When he lands in the Mississippi River, what amazes Percy that he's able to do?

(Chapter 14)

He can breathe underwater AND he's totally dry even though he's under the water!

100

Why doesn't Riptide work on the kids who attack Percy in the alley in Los Angeles?

(Chapter 17)

They are mortal humans and Riptide only works on monsters and gods. 

100

Why do Percy, Grover, and Annabeth go to the entrance of the Pit of Tartarus? 

(Chapter 19)

Grover’s flying shoes start flying out of control and drag him toward the pit.

100

Why was Percy's mother returned home?

Hades let her go because Percy found and returned his helm (hat) of darkness to him. 

200

According to Grover, why did Percy's mom marry Smelly Gabe?

(Chapter 10)

Gabe smells so gross that the monsters couldn't smell Percy when he was near Gabe. Percy's mom was trying to protect him.

200

What message does the woman in the water give to Percy? 

(Chapter 14)

To go to Santa Monica Beach and to not trust the gifts he's given. 

200

Who was Thalia's protector?

(Chapter 16)

Grover

200

How does Percy convince Charon to take them to the Underworld even though they aren’t dead?

(Chapter 18)

He bribes him by giving him drachma coins.

200

Why is it important that the Furies watch Percy's battle with Ares?

What does Percy give to the Furies? 

(Chapter 20)

They see that Percy is innocent and Percy gives them Hades' Helm (Hat) of Darkness.

300

How does Percy sneak to the front of the bus after leaving Camp Half-Blood?

(Chapter 10)

He used Annabeth's Yankees cap of invisibility.

300

What news does Ares give Percy about his mom? 

(Chapter 15)

She's not dead. She's being held by someone (but he didn't say by whom).

300

How does Grover make sure the zoo transport animals are safe when he releases them?(Chapter 16)

A. He places a satyr's sanctuary (blessing) on them.

B. He gives them weapons.

C. He knocks out the van drivers

A. He places a satyr's sanctuary (blessing) on them.

300

How do Percy, Annabeth, and Grover escape the Underworld after confronting Hades?

(Chapter 19)

They use the pearls that Percy was given in Santa Monica from the underwater lady.

300

Who does Percy think is really trying to start a war between the gods and get power back?

(Chapter 21)

Kronos - who is still alive in the pit of Tartarus and wants his power back.
400

Who has Aunty Em been sending her stone statues to?

(Chapter 11)

Hades in the Underworld.

400

What does Annabeth dream of being when she grows up?

(Chapter 13)

An architect.

400

How does Annabeth pay for the taxi cab ride to Los Angeles?

(Chapter 17)

With the Casino Cash Card from the Lotus Hotel.

400

Who was the god that turned bad that the prophecy mentioned?

(Chapter 20)

Ares.

400

What bead is Percy given for his first summer at Camp Half-Blood?

A black bead with a green trident on it.

500

Why does Grover want to get his Searcher's License?

(Chapter 12)

To find the satyr god, Pan.

500

According to Annabeth, what does Hephaestus like to do when he discovers his wife and Ares together?

(Chapter 15)

Trap them and embarrass them.

500

How does Annabeth save them from Cerberus?

(Chapter 18)

With a red rubber ball.

500

Why does Percy think Ares is following orders rather than thinking for himself?

(Chapter 20)

He mentions that he had dreams too (like Percy)

500

What happens between Percy and Luke in the last chapter (Chapter 22)? 

Percy finds out that Luke is the friend that would betray him that the prophecy was talking about. He finds out that Luke stole the lightning bolt and Hades' helm (hat) of darkness and is working with Kronos to start a war between the gods. Luke has a scorpion attack Percy. Percy almost dies from the attack and is still healing at the end of the book.