Kelly wants to build a small koi fish pond in her backyard. What natural material should she line her pond with to make sure that no water leaks out of the pond
through gravitational water flow?

A- sand
b- clay
c- loam
d- gravel

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.