Who you callin' BUOYANT?!
Buoyancy and FORCES!!
First! - 25 min.
We will watch a short video on Buoyancy and experiments.
Second! 25 min.
Read page 214 to the bottom of 217 in the science textbook.
Stop and focus on language and specific examples:
TERMS
Force - is a push or pull that tends to cause an object to move or change its motion.
Floating - occurs when an upward force on a object is equal to or greater than the force of gravity pulling the object down.
Non-balanced Forces - Objects in fluids may rise or sink if these two forces are unbalanced.
Gravitational Force - pulls objects down toward the centre of the earth.
Buoyant - the liquid exerting an opposite force and tries to push it upward.
Communicate:
- How might someone measure someone's mass on the moon?
- How might someone measure someone's weight on the moon?
Problem Solver - A Mystery
200g = .2kg
Gravity = 9.81kg(m/s^2)
Newton = kg(m/s^2)
Water vs. Molasses vs. Vegetable Oil
Some other great videos:
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