Tim and Carla play catch with a ball. Which term describes the motion of a ball? OPTIONS:
- shape
- size
- speed
- weight
A: speed

A baby kit fox grows to become an adult with a mass of over 3.5 kg. What factor will have the greatest influence on this kit fox's survival? OPTIONS:
- the size of the fox's ears
- the conditions of the fox's habitat
- the average number of fox offspring
- the social behaviors within the fox population
A: the conditions of the fox's habitat

What is the main function of scales on a fish? OPTIONS:
- to protect the fish
- to attract predators
- to help the fish find food
- to help the fish breathe
A: to protect the fish

A small, fast-moving river in is in a V-shaped valley on the slope of a mountain. If you follow the river to where it passes through a plain, what will the river most likely look like compared with how it looked on the mountain? OPTIONS:
- Much the same
- Deeper and faster
- Slower and wider
- Straighter
A:
Slower and wider