Multiple choice

What can you say from the experiment? A lump of basalt was weighed before and after dipping into water. The experiment was repeated with a lump of sandstone. The sandstone produced bubbles and gained significant weight. The basalt produced no bubbles and weighed about the same.

  1. the sandstone is more porous than basalt

  2. the basalt is made of large crystals

  3. the basalt is more dense than sandstone

  4. the sandstone removed the dissolved air from the water

  5. basalt has many layers

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Yes, sandstone is more porous than basalt,because it is a sedimentary rock.