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Transcript of Relative Density
What Did You Learn?
1. Think about what makes something float or sink.
2. Thumbs up when you have an answer.
3. Turn to a shoulder partner. Tell them your idea using the stems:
"I think objects float because _______."
"I think objects sink because _______."
4. Be ready to share with the whole class.
Why Do Objects Float or Sink?
1. At your table, sort the cards. Put them in order from LEAST DENSE to MOST DENSE.
2. Which objects will float in water? Which will sink?
3. Place your cards on the "Density Continuum" at your table.
More or Less Dense than Water?
PING PONG BALL
LARGE PIECE OF WOOD
SMALL PIECE OF WOOD
PIECE OF WOOD WITH A HOLE
STYROFOAM BALL WITH A HOLE
SINK OR FLOAT?
Density is the amount of "stuff" (MASS) that is in a certain amount of space (VOLUME).
If an object is MORE DENSE than another object, it will SINK.
If an object is LESS DENSE than another object, it will FLOAT.