The 2nd grade checkpoint!!!!!!!!!!!!!!!!!!!!!!!!!

what are atoms?

• What everything is made of.

• A checkpoint.

• nothing

• ?

What are Quadrilaterals?

• Triangles

• Rectangle

• Square

• ?

What are you made of?

• bones

• heart

• cells

• ?

What is Uraniam?

• an element

• a y

• nothing

• ?

What is Oxygen?

• A kind of element

• What we breath

• What?

• ?

 $3+5\times4-3=?$  

• 20

• 76

• 0

• ?

How many protons and neutrons are in Uranium to make a bomb?

• 235

• 321

• 532

• ?

 $4-5\times4+6=?$  

• -10

• -54

• -45

• ?

How many protons are in Hydrogen?

• 1

• 12

• 4

• ?

 $12+2-3+3-6=?$  

• 8

• 12

• 12

• ?