Humphrey runs a little physics lab...

Humphrey is a scientist at heart. He is fascinated by gravity, and properties of matter and and physical mass - especially inertial versus gravitational mass. Now, he finds physics textbooks rather unpleasant to read, and he tends to be an active learner (who tests theories by doing, not reading!).

Upon his arrival at his vacation home, Humphrey set out to resume the physics lab which he started last summer, and replicate some of his early experiments on buoyancy. He gathered together all of his rubber toys, and resumed his "Float or Sink?" experiments with the help of his trusty human lab assistant....



Humphrey wishes to share his lab report so that other dogs can learn from his work:

LAB REPORT: Floats, or Sinks? Investigating Buoyancy

CHIEF SCIENTIST: Humphrey

PROBLEM: Which of my toys will float or sink if dropped in the pool?

VARIABLES: Toys, some that squeak, some that do not.

HYPOTHESIS: Some will float, some will not.

PROCEDURES:

1. Gather a bunch of toys

2. Instruct lab assistant to drop each in the pool, one at a time.

3. Observe.

4. Retrieve each from the pool.

5. Run around the yard at top speed several times with each toy retrieved. Squeak while running if possible.

6. Lie down under the apple tree and laugh.

CONCLUSION: Only Gumby sinks. Gumby does not squeak. Toys that do not squeak appear to sink, though further experiments may be required to conclusively confirm this. All toys are excellent for playing with after they are retrieved from the pool.