Why are you more likely to burn yourself on metal toy than on a plastic toy if both have been sitting in the sun?

You are more likely to burn yourself on a metal toy than on a plastic toy because metal has a higher thermal conductivity. This means that metal absorbs and retains heat more efficiently than plastic, causing it to reach higher temperatures when exposed to sunlight. As a result, when you touch a metal toy, it can transfer that heat to your skin more quickly, increasing the risk of burns. In contrast, plastic tends to absorb less heat and does not conduct it as effectively, making it less likely to cause burns.