Based on your observations from the Can Crush Lab, why would a helium balloon that rises into the atmosphere eventually burst? Atmospheric pressure outside the balloon increases as the balloon rises.
Atmospheric pressure outside the balloon decreases as the balloon rises.
Helium molecules inside the balloon decrease as the balloon rises.
Helium molecules inside the balloon increase as the balloon rises.

Outside of the balloon, air increasing pressure even as balloon grows.

Explanation:

The volume of the air increased with increase in ambient height, meaning that the amount of air molecules per unit area decreases. The pressure placed by the air is therefore decreased due to this decrease in air density.

explanation:

the largest database of organic compounds lists about 10 million substances, which include compounds originating from living organisms and those synthesized by chemists. the number of potential organic compounds has been estimated at 1060—an astronomically high number. the existence of so many organic molecules is a consequence of the ability of carbon atoms to form up to four strong bonds to other carbon atoms, resulting in chains and rings of many different sizes, shapes, and complexities. the simplest organic compounds contain only the elements carbon and hydrogen, and are called hydrocarbons. even though they are composed of only two types of atoms, there is a wide variety of hydrocarbons because they may consist of varying lengths of chains, branched chains, and rings of carbon atoms, or combinations of these structures. in addition, hydrocarbons may differ in the types of carbon-carbon bonds present in their molecules. many hydrocarbons are found in plants, animals, and their fossils; other hydrocarbons have been prepared in the laboratory. we use hydrocarbons every day, mainly as fuels, such as natural gas, acetylene, propane, butane, and the principal components of gasoline, diesel fuel, and heating oil. the familiar plastics polyethylene, polypropylene, and polystyrene are also hydrocarbons. we can distinguish several types of hydrocarbons by differences in the bonding between carbon atoms. this leads to differences in geometries and in the hybridization of the carbon orbitals.

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >