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My Box of Rocks Trivia Quiz

When I was a kid, I loved collecting rocks, and I had an ENORMOUS rock collection! Want to peek inside my box of rocks?

A multiple-choice quiz by pu2-ke-qi-ri. Estimated time: 3 mins.

Author
pu2-ke-qi-ri

Time
3 mins

Type
Multiple Choice

Quiz #
241,020

Updated
Dec 03 21

# Qns
10

Difficulty
Easy

Avg Score
8 / 10

Plays
5611

Awards
Top 5% quiz!

One at a Time - Single Page - Timed Game

Question 1 of 10

1. One rock is hollow inside, with purple amethyst crystals growing inside it. What is this called? Hint

Fossil

Boulder

Geode

Volcano

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Question 2 of 10

2. I have three rocks in front of me. The basalt is hard, dense, and black. The obsidian is black and glassy. The third rock is pumice, which is light, frothy, and full of little holes. What made these three rocks? Hint

A Volcano

An Earthquake

A River

A Glacier

NEXT>

Question 3 of 10

3. The rock where I live is white and chalky. Sometimes it has fossils of ancient sea shells. What kind of rock is this? Hint

Limestone

Slate

Granite

Basalt

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Question 4 of 10

4. What kind of rock forms when limestone is baked at high pressure and temperature? Sometimes it is used for carving sculptures. Hint

Granite

Quartzite

Schist

Marble

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Question 5 of 10

5. What do you call a rock made up of lots of little sand grains? Hint

Limestone

Sandstone

Mudstone

Chert

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Question 6 of 10

6. I have a rock which has big scratches on it, all going the same direction. I collected it from a place where there was a great big crack in the rock. Could an earthquake have caused these scratches?

Yes

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Question 7 of 10

7. I have a rock that has three kinds of crystals: pink, white, and black. The pink crystals are the mineral feldspar. The white crystals are the mineral quartz. The black crystals are the mineral mica. What kind of rock is this? Hint

Limestone

Slate

Granite

Basalt

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Question 8 of 10

8. One of the prettiest rocks I have is light grey and shiny. It also has big red garnet crystals in it. What is this rock called? Hint

Slate

Granite

Sandstone

Schist

NEXT>

Question 9 of 10

9. Whenever you go rock hunting, it's a good idea to do some things to make sure you don't hurt yourself, and you don't annoy other people. Which of these should you do? Hint

All of these

Ask before you go on someone else's property

Bring an adult with you

Watch out for cars at roadcuts

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Question 10 of 10

10. There are people who study rocks for a living! I'm one of them. What are these people called? Hint

Astronomers

Geologists

Biologists

Engineers

Most Recent Scores

Nov 15 2024 : Guest 66: 10/10
Sep 30 2024 : Guest 65: 10/10

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Quiz Answer Key and Fun Facts

1. One rock is hollow inside, with purple amethyst crystals growing inside it. What is this called?

Answer: Geode

Some of the biggest geodes are 26 feet wide, with crystals three feet long!

Answer: A Volcano

Volcanoes spew out melted rock, called lava. The lava can harden into different types of rock, depending on how fast it cools. Obsidian came from lava that cooled very quickly. The basalt came from lava that cooled more slowly. Pumice comes from lava which is full of gas, which makes all the holes!

3. The rock where I live is white and chalky. Sometimes it has fossils of ancient sea shells. What kind of rock is this?

Answer: Limestone

Nowadays, limestone forms in tropical places, like the Bahamas. Limestone dissolves easily in water (over millions of years, of course). This can make caves.

4. What kind of rock forms when limestone is baked at high pressure and temperature? Sometimes it is used for carving sculptures.

Answer: Marble

Marble can also be used in buildings. It comes in many different colors. Some of the most famous marble quarries are in Italy.

5. What do you call a rock made up of lots of little sand grains?

Answer: Sandstone

Each sand grain is a tiny piece broken off another rock. Sometimes you can tell what kind of rock a sandstone came from by looking at the grains.

Answer: Yes

Earthquakes happen when rock in the ground breaks and slides past itself. Earthquakes can make the ground shake and knock down buildings. They also leave these neat scratches on the break, so we can tell there was an earthquake there! We call the scratches "slikensides" and we call the break a "fault."

Answer: Granite

Granite forms deep underground when large pools of magma, or melted rock, cool.

8. One of the prettiest rocks I have is light grey and shiny. It also has big red garnet crystals in it. What is this rock called?

Answer: Schist

Schist forms when shale or mudstone is put under high temperatures and enormous stress, like you would find under the Himalayas. The heat and pressure causes new minerals to form, like garnets.

9. Whenever you go rock hunting, it's a good idea to do some things to make sure you don't hurt yourself, and you don't annoy other people. Which of these should you do?

Answer: All of these

It's no fun if you get hurt looking for rocks! I'm a grown-up and I get to use a rock hammer, but I always make sure I wear my safety goggles!

10. There are people who study rocks for a living! I'm one of them. What are these people called?

Answer: Geologists

Geologists can study lots of different things about the earth. A lot of geologists look for oil, which we use to make fuel like gasoline. Some geologists study volcanoes and earthquakes, to protect people from them. Some geologists, like me, study what happens when you make rocks really, really hot and then smush them! Cool!

Source: Author pu2-ke-qi-ri

This quiz was reviewed by FunTrivia editor NatalieW before going online.
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