Bone Vault

The Bone Vault is a location and an activity in JumpStart 2nd Grade. CJ stands out while Edison goes in. Math and spelling problems are solved to unlock the door. Once the door is open, a cat comes out with lots of bones. There are eight locks to open. Choose any item to measure with the ruler or scale.

Math
The player must use addition or subtraction with a zero in blue.
 * 0 1 2 3 4 5 6 7 8 9

Spelling
The player must choose a vowel to put in the word with a Y in red.
 * A E I O U and sometimes Y

Eight Locks
The eight locks open with math or spelling to unlock. The knob turns with vowels or digits on them. There is a cat inside with a lot of bones. The zero is in blue and the Y is in red.

Digits

 * 0 (in blue)
 * 1
 * 2
 * 3
 * 4
 * 5
 * 6
 * 7
 * 8
 * 9

Vowels

 * A
 * E
 * I
 * O
 * U
 * and sometimes Y (in red)

Items For Scale and Ruler

 * Soda Can
 * Television
 * Shoe
 * Football
 * Basketball
 * Hammer
 * Pencil
 * Brick

Difficulty level differences

 * Scout
 * Explorer
 * Trailblazer

Edison in the Bone Vault
CJ stands out with measuring items and how much it weighs and how much it measures. The ruler tells how many inches. The scale tells how many pounds.

Trivia

 * There are eight items to measure for the scale and the ruler.
 * The zero is in blue with nine other digits.
 * The Y is in red with all vowels.
 * Edison goes in the bone vault for measuring items.