I. An inflated balloon expands and eventually bursts when left exposed to sunshine due to the particles theory of matter. When the balloon is exposed to heat from the sun, the air particles inside the balloon gain energy, causing them to move faster and spread out, increasing the pressure inside the balloon. As a result, the balloon expands until it reaches its elastic limit and eventually bursts.
II. An inflated balloon eventually sinks when left on a cemented floor for 3 days because of the particles theory of matter. Over time, the rubber material of the balloon allows tiny air particles to escape slowly through tiny pores. As the air escapes, the overall density of the balloon decreases, causing it to sink due to gravity.
III. You can easily squeeze a plastic gas syringe that is completely filled with air than squeezing one filled with water due to the differences in compressibility of air and water. Air is more compressible than water because the particles in air are more spread out and can be squeezed closer together with less force, making it easier to compress air in the syringe.
IV. When a tea bag is put in a cup of hot water, the colorless water changes to dark brown due to the process of diffusion. The particles in the tea leaves dissolve in the hot water, releasing compounds that give the water its dark brown color. This process is driven by the movement of particles from an area of higher concentration (tea leaves) to an area of lower concentration (hot water), resulting in the color change.
