I'll give you a medal : )
a scientist heats a sealed flexible container full of helium gas. what will most likely happen to the container as the gas absorbs heat?

it will shrink because the helium atoms will break apart into smaller pieces.

it will expand because the helium atoms will get larger.

it will expand because the helium atoms will move more quickly and get farther apart.

it will shrink because the helium atoms will lose energy as heat and move closer together.

It will expand because the helium atoms will move more quickly and get farther apart. This is your answer because as the particles get more heated, they start to increase the kinetic energy and move more.

alfred von schlieffen, german army chief of staff, was given instructions to devise a strategy that would be able to counter a joint attack. in december, 1905, he began circulating what later became known as the schlieffen plan. schlieffen argued that if war took place it was vital that france was speedily defeated.