Science Test Questions And Answers

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| By Eric13121

Eric13121

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Quizzes Created: 5 | Total Attempts: 5,639

Questions: 5 | Attempts: 2,391 | Updated: Mar 18, 2023

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Do you believe that you have what it takes to answer the science quiz below and get the highest score? If you said yes the quiz below is designed to prove if you indeed know a lot about science. Give it a try and see what score you get. All the best!

Questions and Answers

1.

Why is pumice lighter than obsidian?
- A.
  
  Because it has little holes from gases escaping when it cools
- B.
  
  Because it isn't
- C.
  
  None of the above
Correct Answer
A. Because it has little holes from gases escaping when it cools

Explanation
Pumice is lighter than obsidian because it has little holes formed from gases escaping during the cooling process. These holes create a porous texture, reducing the overall density of the rock. In contrast, obsidian is a volcanic glass that cools rapidly without trapping any gas bubbles, resulting in a denser and heavier material.

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1
2.

How is a rock different from a mineral?
- A.
  
  I dunno
- B.
  
  Rocks are made of minerals and aren't crystals
- C.
  
  None of the above
Correct Answer
B. Rocks are made of minerals and aren't crystals

Explanation
The correct answer explains that rocks are different from minerals because rocks are made up of minerals, but they are not crystals. This means that while minerals are naturally occurring solid substances with a specific chemical composition and crystal structure, rocks are composed of various minerals and can have different textures and compositions. Therefore, rocks can contain minerals but are not solely made up of crystals.

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3
3.

Why is it not likely to find fossils in metamorphic or igneous rock
- A.
  
  Because magma or heat and pressure would probably destroy the fossil
- B.
  
  It is very likely
- C.
  
  None of the above
Correct Answer
A. Because magma or heat and pressure would probably destroy the fossil

Explanation
The correct answer is because magma or heat and pressure would probably destroy the fossil. Metamorphic rock is formed through the process of intense heat and pressure, which can cause the organic material in fossils to be altered or destroyed. Similarly, igneous rock is formed from molten magma, which would also destroy any fossils present. Therefore, it is not likely to find fossils in these types of rocks due to the destructive nature of magma, heat, and pressure.

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4.

1- Talc, 2- Gypsum, 3- Calcite, etc.What is this scale called?
- A.
  
  Moh's Hardness Scale
- B.
  
  The Mineral Scale
- C.
  
  None of the above
Correct Answer
A. Moh's Hardness Scale

Explanation
The given correct answer is "Moh's Hardness Scale." This scale is used to measure the hardness of minerals. It ranks minerals from 1 to 10 based on their ability to scratch or be scratched by other minerals. Talc is the softest mineral on the scale with a rank of 1, while diamond is the hardest mineral with a rank of 10. Gypsum and calcite are also minerals that are ranked on the Moh's Hardness Scale.

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5.

On Moh's hardness scale, can a smaller numbered rock scratch a higher number rock?
- A.
  
  Yes
- B.
  
  No
- C.
  
  Maybe
Correct Answer
B. No

Explanation
No, a smaller numbered rock cannot scratch a higher numbered rock on Moh's hardness scale. The hardness scale is based on the ability of one mineral to scratch another. A higher number on the scale indicates a greater hardness, meaning that the mineral can only be scratched by minerals with a higher number. Therefore, a smaller numbered rock would not be able to scratch a higher numbered rock.

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0

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Current Version
Mar 18, 2023

Quiz Edited by
ProProfs Editorial Team
May 25, 2010

Quiz Created by
Eric13121

Science Test Questions And Answers

Why is pumice lighter than obsidian?

How is a rock different from a mineral?

Why is it not likely to find fossils in metamorphic or igneous rock

1- Talc, 2- Gypsum, 3- Calcite, etc.What is this scale called?

On Moh's hardness scale, can a smaller numbered rock scratch a higher number rock?