Asked by tom

a student is observing a rock. which of the follwoinf is an observation

1. the rock is 55g in mass
2. the rock is over billions of years old
Answered by tom
i put 2 on my test
can u explain why its 2.
Answered by Ms. Sue
You wouldn't know the mass of the rock by a simple observation. You'd have to weigh it.
Answered by tom
so using an instrument to extend the power of an observation isnt itself an observation?
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