For a given medium, sound waves travel more slowly at lower temperatures.  If Milo is listening to the radio in his room and the room gets colder, what happens to the speed of the sound waves generated by the radio increase or decrease?
decrease


If there are more greenhouse gases in the atmosphere, more ultraviolet radiation will be trapped and the Earth will heat up.  Tony drives an SUV that contributes many greenhouse gases to the atmosphere. Evan rides a scooter that contributes few greenhouses gases to the atmosphere. Who likely contributes less to the Earth heating up Tony or Evan?
Evan


Q: With fewer trees, the air is drier and droughts are more common.  Terry cuts the trees down in the forest. The air is now more or less dry?
A: more


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 slower moving stream would only carry particles that are Larger or Smaller?
Answer: Smaller


*Question*
The harder the batter hits the ball, the greater will be its acceleration.  If Jim wants to decrease the amount of acceleration applied to a baseball he must hit it harder or softer?
**Answer**
softer


*Question*
The smaller its mass is, the greater its acceleration for a given amount of force.  What happens to a light car when it has the same power as a heavy car accelerates faster or accelerates slower?
**Answer**
accelerates faster