Riddle: Mystery Object Reveal


Mystery Object RevealOnline version Guess the object by KHALIDA ALLI 1 I am evidence, but I was never written down. Time has changed me, but my shape may reveal what once existed. Scientists may find me hidden inside layers of sedimentary rock. Hints 1 Found in sedimentary rocks 2 Forms from buried remnants 3 Evidence from ancient life 2 I may remain inactive for a long time while still containing something alive. Changes in water, temperature and oxygen can cause me to become active. When conditions are suitable, a tiny root is often the first part to emerge. Hints 1 First to sprout 2 Germinates under right conditions 3 Stored potential organism 3 I can change completely without ever being alive. My history may involve extreme heat, pressure, cooling or layers of material. Scientists study my minerals and texture to classify me. Hints 1 Minerals and texture classify 2 Geologic history 3 Non-living changing form 4 My structure allows me to be both lightweight and useful. Tiny parts of me connect together to create a larger surface. Depending on where I am found, I can help with insulation, protection or movement through air. Hints 1 Insulation or flight aid 2 Interconnected filaments 3 Lightweight and strong 5 During my use, matter changes form and energy is transferred. One part of me undergoes a physical change before another process can occur. When operating, I convert stored chemical energy into heat and light. Hints 1 Burns to emit light and heat 2 Physical change first step 3 Energy transformation 6 I can remain long after my original owner is gone. I am mostly made from a compound containing calcium. My hard structure once protected the soft body of an organism. Hints 1 Protective exterior 2 Calcium carbonate 3 Left after organism dies 7 Much of my usefulness comes from the empty spaces inside me. My structure allows liquid to move into many tiny spaces. Pressure can force the liquid out, but releasing me allows me to take it in again. Hints 1 Suction and release 2 Capillary action 3 Porous structure 8 My particles are the same as those in something that can flow. Adding energy changes the way my particles move without creating a new substance. Above my melting point, my organised structure begins to break down. Hints 1 Melting point reached 2 Molecular motion increases 3 Solid to liquid transition 9 A chemical indicator could reveal something about me that your eyes cannot. Some of the substances inside me release hydrogen ions when dissolved in water.My juice would produce a pH reading below 7. Hints 1 Low pH 2 Releases H+ in water 3 Acidic properties 10 My size can change even when you don't add any solid or liquid to me. What is inside me consists of particles moving freely and colliding with my inner surface. Increasing the amount of gas inside me increases the pressure on my flexible walls. Hints 1 Pressure rises with more gas 2 Particles move freely 3 Gas-filled container

1

I am evidence, but I was never written down. Time has changed me, but my shape may reveal what once existed. Scientists may find me hidden inside layers of sedimentary rock.

Hints

1

Found in sedimentary rocks

2

Forms from buried remnants

3

Evidence from ancient life

2

I may remain inactive for a long time while still containing something alive. Changes in water, temperature and oxygen can cause me to become active. When conditions are suitable, a tiny root is often the first part to emerge.

Hints

1

First to sprout

2

Germinates under right conditions

3

Stored potential organism

3

I can change completely without ever being alive. My history may involve extreme heat, pressure, cooling or layers of material. Scientists study my minerals and texture to classify me.

Hints

1

Minerals and texture classify

2

Geologic history

3

Non-living changing form

4

My structure allows me to be both lightweight and useful. Tiny parts of me connect together to create a larger surface. Depending on where I am found, I can help with insulation, protection or movement through air.

Hints

1

Insulation or flight aid

2

Interconnected filaments

3

Lightweight and strong

5

During my use, matter changes form and energy is transferred. One part of me undergoes a physical change before another process can occur. When operating, I convert stored chemical energy into heat and light.

Hints

1

Burns to emit light and heat

2

Physical change first step

3

Energy transformation

6

I can remain long after my original owner is gone. I am mostly made from a compound containing calcium. My hard structure once protected the soft body of an organism.

Hints

1

Protective exterior

2

Calcium carbonate

3

Left after organism dies

7

Much of my usefulness comes from the empty spaces inside me. My structure allows liquid to move into many tiny spaces. Pressure can force the liquid out, but releasing me allows me to take it in again.

Hints

1

Suction and release

2

Capillary action

3

Porous structure

8

My particles are the same as those in something that can flow. Adding energy changes the way my particles move without creating a new substance. Above my melting point, my organised structure begins to break down.

Hints

1

Melting point reached

2

Molecular motion increases

3

Solid to liquid transition

9

A chemical indicator could reveal something about me that your eyes cannot. Some of the substances inside me release hydrogen ions when dissolved in water.My juice would produce a pH reading below 7.

Hints

1

Low pH

2

Releases H+ in water

3

Acidic properties

10

My size can change even when you don't add any solid or liquid to me. What is inside me consists of particles moving freely and colliding with my inner surface. Increasing the amount of gas inside me increases the pressure on my flexible walls.

Hints

1

Pressure rises with more gas

2

Particles move freely

3

Gas-filled container

You can integrate the game into an LMS compatible with LTI 1.1 or LTI 1.3 such as Canvas, Moodle, or Blackboard. This way, the scores will be automatically saved into the platform’s gradebook.

Mystery Object Reveal

Riddle

About this activity

Created by

Download the paper version to play

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GUESS, GUESSER...

Mystery Object RevealOnline version

by KHALIDA ALLI

I am evidence, but I was never written down. Time has changed me, but my shape may reveal what once existed. Scientists may find me hidden inside layers of sedimentary rock.

Hints

I may remain inactive for a long time while still containing something alive. Changes in water, temperature and oxygen can cause me to become active. When conditions are suitable, a tiny root is often the first part to emerge.

Hints

I can change completely without ever being alive. My history may involve extreme heat, pressure, cooling or layers of material. Scientists study my minerals and texture to classify me.

Hints

My structure allows me to be both lightweight and useful. Tiny parts of me connect together to create a larger surface. Depending on where I am found, I can help with insulation, protection or movement through air.

Hints

During my use, matter changes form and energy is transferred. One part of me undergoes a physical change before another process can occur. When operating, I convert stored chemical energy into heat and light.

Hints

I can remain long after my original owner is gone. I am mostly made from a compound containing calcium. My hard structure once protected the soft body of an organism.

Hints

Much of my usefulness comes from the empty spaces inside me. My structure allows liquid to move into many tiny spaces. Pressure can force the liquid out, but releasing me allows me to take it in again.

Hints

My particles are the same as those in something that can flow. Adding energy changes the way my particles move without creating a new substance. Above my melting point, my organised structure begins to break down.

Hints

A chemical indicator could reveal something about me that your eyes cannot. Some of the substances inside me release hydrogen ions when dissolved in water.My juice would produce a pH reading below 7.

Hints

My size can change even when you don't add any solid or liquid to me. What is inside me consists of particles moving freely and colliding with my inner surface. Increasing the amount of gas inside me increases the pressure on my flexible walls.

Hints

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