on the "Project Timeline" on our PBL board.

the force of attraction by which objects tend to fall toward the center of the earth.

decrease

throw the paper harder, use your strongest arm

the branch of mechanics that deals with the motion of air and other gases and with the effects of such motion on bodies in the medium.

resistance to the movement of an aircraft through the air.

see the project board.

the one factor that changes in an experiment. Everything else stays the same.

strength or power exerted upon an object

go back to the project timeline and see where I am; check the most recent page in my PBL folder; look on the board; ask my team; ask a teacher

the action or process of moving or of changing place or position; movement.

How does the design of an airplane affect its motion?