1. What is Size? How big or small something is.
Big size does NOT equal heavy weight!
Bonus: Big objects that are light?
Small objects that are heavy?
After giving the students some time to think for the bonus question, provide some answers for them. Ex) A big, but empty, cardboard box. (Big but light)
A melon (Small but heavy)

2. Weight VS Mass Mass is the measure of matter.
Weight is the measure of gravity.
Mass does NOT equal gravity.
Ask students what they think when they hear “mass”. Most will respond that it’s like weight- correct the misconception by saying that on EARTH, the two are practically interchangeable because of gravity, however, in outer space, the two are vastly different.

3. Relation to Forces? Heavier object = needs more force to move
What happens when you drop a heavy object? Light object
give students time to answer the questions. Demonstrate dropping something heavy and something light. (ex. a pencil vs. feather)

4. What is Direction?
What do you do if you want to go a certain direction?
Encourage students to respond to the question and think about the meaning behind their response- that they are moving/in motion, thus using force.

5. Relation to Forces? We need FORCE in order to cause MOTION
MOTION helps us move toward different directions
Talk about how if we want to get to door, for example, we would have to get up and into motion in order to move there. Encourage students to think of other examples.

6. Reviewing the Concepts
-Forces can change speed and direction
-More force is required for heavier objects
Ask students questions reaffirming their understanding of the definitions of the vocab from previous slide.