How do hot balloons float?

How do hot balloons float? Hot air rises. Heated air molecules “spread out” or expand and bounce around, and the space becomes less dense than the surrounding space. Increasing the air temperature inside the balloon envelope makes it less dense than the air, thus making it “lighter than air”. What happens when the air in […]

What is an age graded event?

What is an age graded event? Normative age-graded influences are those biological and environmental factors that have a strong correlation with chronological age, such as puberty or menopause, or age-based social practices such as beginning school or entering retirement. What is an example of a history graded influence in development? Normative history-graded influences are those […]

Do grasshoppers like hot or cold?

Do grasshoppers like hot or cold? Grasshopper prefer temperatures of 68 to 100 F for feeding and most feeding occurs during the warmer periods and hotter days. As our temperatures have started to decrease in September, grasshoppers will be feeding less and causing less damage to any later maturing field crops. Does cold kill grasshoppers? […]

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