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svetlana [45]
3 years ago
9

Steven puts the two stones in a rock tumbler. The tumbler spins so the rocks bump against each other. When the rocks are removed

, he discovers that pebble one experienced more change than pebble two . What can Steven best conclude about the stones ?

Biology
1 answer:
Mandarinka [93]3 years ago
8 0
F. Stone 1 is softer and experienced a greater physical reaction.

Physical reaction is when an object's appearance changes, not the identity (which would be chemical reaction). Because stone 1 is softer, it would be easier to change its physical property. Since stone 2 is harder, it's more durable and therefore harder to change. 
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1. Examine the organelles A and B in a cell mounted on a slide; use the fine adjustment to focus on the cell.

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  • Size: Measure the average diameter of organelle A versus B using an ocular micrometer at low, medium and high magnification.

2. Record and tabulate observations.

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