The number 0.0054 written in scientific notation is A)0.54 x 10-3.
B)0.54 x 103.
C)5.4 x 10-3.
D)5.4 x 103.

Which are observations about the tree on the right ,? check all that apply

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?

Facilitated diffusion move large molecules and/or polar molecules across the cell membrane. what does facilitated diffusion use to do this?