prior knowledge questions (do these before using the gizmo.)\n1. if you exercise on a hot day, you need to…

prior knowledge questions (do these before using the gizmo.)\n1. if you exercise on a hot day, you need to worry about dehydration. in this context, what do you think dehydration means?\n2. astronauts and backpackers often bring dehydrated food. what do you think dehydrated food is?

prior knowledge questions (do these before using the gizmo.)\n1. if you exercise on a hot day, you need to worry about dehydration. in this context, what do you think dehydration means?\n2. astronauts and backpackers often bring dehydrated food. what do you think dehydrated food is?

Answer

Brief Explanations:

  1. Dehydration occurs when the body loses more fluids than it takes in, often through sweating during exercise on a hot day. This can lead to an imbalance in body - fluid levels and cause various health issues.
  2. Dehydrated food is food from which most of the water content has been removed. This process extends the shelf - life of the food and reduces its weight, making it convenient for astronauts and backpackers.

Answer:

  1. Losing too much body fluid, especially through sweating during exercise on a hot day.
  2. Food with most of its water content removed for longer storage and lighter weight.