20 points and very easy- Match the following with the letters and numbers below:

1. Energy of an objects position above the ground
2. Stored in the bonds of atoms and molecules
3. Stores in the nucleus of an atom
4. Energy of vibrating molecules
5. Movement of objects used to do work
6. Created by vibrations in electric and magnetic fields

A. Heat
B. Mechanical energy
C. Nuclear energy
D. Chemical energy
E. Light
F. Gravitational energy

Thank you in advance!! Please hurry!

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size