*Question*
If there are more greenhouse gases in the atmosphere, more ultraviolet radiation will be trapped and the Earth will heat up.  Carl is studying climate change, and notes that more ultraviolet radiation is being trapped, which means the earth will be cooler or warmer?
**Answer**
warmer

*Question*
When particles move more quickly, temperature is higher and an object feels warmer.  By filling up a party balloon with slower moving Helium particles from a gas cylinder as opposed to faster ones, would the temperature of the balloon be higher or lower??
**Answer**
lower?

*Question*
As humidity increases, the water potential gradient across the inside and outside the leaf become more equal, and so the rate of transpiration decreases.  As the air becomes drier, transpiration of a leaf will increase or decrease?
**Answer**
increase

*Question*
In erosion, a slower moving stream will only carry smaller particles.  John was watching the movement of a stream in the forest. He noticed that the faster moving stream could carry particles that are Larger or Smaller?
**Answer**
Larger