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Questions and Answers
What characteristic makes rocks with interlocking grains strong and hard?
What characteristic makes rocks with interlocking grains strong and hard?
- They fit together with no gaps. (correct)
- They have gaps between grains.
- They are made of chemical compounds.
- They consist of rounded grains.
How do porous rocks differ from impermeable rocks?
How do porous rocks differ from impermeable rocks?
- Porous rocks can absorb water due to gaps. (correct)
- Porous rocks are stronger than impermeable rocks.
- Porous rocks are always made of rounded grains.
- Porous rocks allow water to run through easily.
Which statement is true regarding sedimentary rocks?
Which statement is true regarding sedimentary rocks?
- They are made of grains that fit together tightly. (correct)
- They can never be strong or hard.
- They do not contain any chemical compounds.
- They are primarily composed of minerals only.
Which property is associated with rounded grains in rocks?
Which property is associated with rounded grains in rocks?
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What are some common uses of rocks?
What are some common uses of rocks?
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Study Notes
Sedimentary Rocks
- Sedimentary rocks are made of grains that fit together.
- Grains are chemical compounds.
Rocks and Minerals
- Rocks are a mixture of different minerals.
- The compounds in rocks are called minerals.
Texture
- The combination of grains with different sizes and shapes creates texture.
- Porous rocks with rounded grains can absorb water as it can get through the gaps.
- Permeable rocks allow water to run through the rocks.
Uses
- Rocks can be used to make buildings, cement, and gravel.
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