Question

explain why the graph below represents the relationship between the state of matter (solid, liquid, gas) of an object and the amount of thermal energy it contains by using information from the investigation
my investigation showed that the ice melted ✓ in hot water because more thermal energy was transferred to the ice cube. water needs ✓ thermal energy to change from solid to liquid. this is my evidence that the thermal energy ✓ as the water changed from solid to liquid.

Explanation:

The graph shows a negative correlation. As the state of matter changes from solid to liquid (and potentially to gas), the amount of thermal energy required decreases. This aligns with the principles of phase changes in matter. For example, when ice (solid) melts to water (liquid), it absorbs thermal energy. The graph likely represents that as the state becomes less ordered (solid → liquid → gas), less additional thermal energy is needed for the phase change (in this context, maybe comparing the energy input for state transitions, though the axes should be labeled clearly. But based on the description: solid needs more energy to change state (melt) as per the investigation where ice melted in hot water (thermal energy transfer), and the graph's trend—if x - axis is state (solid - liquid - gas) and y - axis is thermal energy, the downward slope shows decreasing thermal energy with state change from solid to liquid (and further).

Answer:

The graph shows a negative relationship. As the state of matter changes from solid to liquid (and potentially gas), the amount of thermal energy (required for the phase change in this context) decreases. When ice (solid) melts (changes to liquid), it absorbs thermal energy. The investigation's evidence (ice melting in hot water - thermal energy transfer) and the graph's trend (downward slope) imply that solid (like ice) needs more thermal energy to change its state (melt) compared to the liquid state (as per the graph's representation of state of matter vs thermal energy relationship).