Water Properties Trivia! Chemistry Practice Quiz

1. Sodium chloride is the scientific name for _______________________

Sodium chloride is the scientific name for salt, specifically table salt. This compound is composed of sodium (Na) and chlorine (Cl) ions, which combine to form a crystal structure. Sodium chloride is commonly used as a seasoning and preservative in food, as well as in various industrial processes. Its scientific name reflects its chemical composition and is widely recognized as the common name for this essential mineral compound.

Explanation

Sodium chloride is the scientific name for salt, specifically table salt. This compound is composed of sodium (Na) and chlorine (Cl) ions, which combine to form a crystal structure. Sodium chloride is commonly used as a seasoning and preservative in food, as well as in various industrial processes. Its scientific name reflects its chemical composition and is widely recognized as the common name for this essential mineral compound.

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2. Mr. Pautler had to move classrooms so he got this huge box that was 10ft². When he filled it with books it weighed 70 pounds. Now, this was no problem for him to carry, but as he is a scientist he was wondering what the density of the box would be. The density of the box would be _______________ lbs/ft²

Remember to divide Mass(weight) by density!

Explanation

Remember to divide Mass(weight) by density!

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3. As you descend into the ocean the amount of light in the water increases.

True

False

As you descend into the ocean, the amount of light in the water actually decreases. This is because sunlight can only penetrate the top layer of the ocean, and as you go deeper, less and less light is able to reach those depths. The water absorbs and scatters the light, resulting in a decrease in the amount of light available.

Explanation

As you descend into the ocean, the amount of light in the water actually decreases. This is because sunlight can only penetrate the top layer of the ocean, and as you go deeper, less and less light is able to reach those depths. The water absorbs and scatters the light, resulting in a decrease in the amount of light available.

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5. As you descend into the ocean the temperature of the water increases.

True

False

As you descend into the ocean, the temperature of the water generally decreases rather than increases. This is because sunlight can only penetrate the top layers of the ocean, and as you go deeper, there is less sunlight and therefore less heat. Additionally, cold water from deeper parts of the ocean tends to rise to the surface, causing the overall temperature to decrease with depth.

Explanation

As you descend into the ocean, the temperature of the water generally decreases rather than increases. This is because sunlight can only penetrate the top layers of the ocean, and as you go deeper, there is less sunlight and therefore less heat. Additionally, cold water from deeper parts of the ocean tends to rise to the surface, causing the overall temperature to decrease with depth.

6. Is salt water or fresh water denser?

Salt

Fresh

Neither(they are the same)

There's more "stuff" or particles in salt water so it will be more dense!

Explanation

There's more "stuff" or particles in salt water so it will be more dense!

7. You have a mystery item that you put into a tub of water. The mystery item floats in the water. You now know that the mystery item is _____________________ than water.

More dense

Less dense

Higher in salinity

Lower in salinity

I sure hope you didn't say anything about salinity!

Explanation

I sure hope you didn't say anything about salinity!

8. To determine the amount of density for something you need to ________________________ the amount of mass and the amount of volume.

Add

Subtract

Multiply

Divide

the fraction line always means divide!

Explanation

the fraction line always means divide!

9. Salt water needs a lower temperature to freeze.

True

False

It must be colder which is a lower temperature so it's true!

Explanation

It must be colder which is a lower temperature so it's true!

10. As you descend into the ocean the density of the water increases.

True

False

As you descend into the ocean, the pressure increases, which in turn causes the density of the water to increase. This is because the weight of the water above exerts more pressure on the water below, compressing it and increasing its density. Therefore, it is true that as you go deeper into the ocean, the density of the water increases.

Explanation

As you descend into the ocean, the pressure increases, which in turn causes the density of the water to increase. This is because the weight of the water above exerts more pressure on the water below, compressing it and increasing its density. Therefore, it is true that as you go deeper into the ocean, the density of the water increases.

11. A good synonym for mass is

Weight

Volume

Thickness

Size

Compactness

As long as we're on earth, weight is our easiest way to measure mass

Explanation

As long as we're on earth, weight is our easiest way to measure mass

12. As you descend into the ocean the salinity of the water increases.

True

False

As you descend into the ocean, the salinity of the water increases because the process of evaporation leaves behind the salt content, making the water more concentrated with salt. This phenomenon is also influenced by factors such as the location of the ocean and the inflow of freshwater from rivers. Therefore, it is true that the salinity of the water increases as you go deeper into the ocean.

Explanation

As you descend into the ocean, the salinity of the water increases because the process of evaporation leaves behind the salt content, making the water more concentrated with salt. This phenomenon is also influenced by factors such as the location of the ocean and the inflow of freshwater from rivers. Therefore, it is true that the salinity of the water increases as you go deeper into the ocean.

13. We can calculate the density of something by

Weighing it

Dividing the volume by the mass

Multiplying the volume by the mass

Dividing the mass by the volume

Multiplying the mass by the volume

Placing it in water

density = mass/volume

Explanation

density = mass/volume

14. Water evaporating from the ocean would decrease the salinity of the water.

True

False

Less fresh water = increased salinity

Explanation

Less fresh water = increased salinity

15. Fish need Carbon Dioxide to survive.

True

False

They may live in the water, but they are still animals so they still need oxygen. Just like land animals including you!

Explanation

They may live in the water, but they are still animals so they still need oxygen. Just like land animals including you!

16. Is hot or cold water denser?

Hot

Cold

Neither(they are the same)

Cold water is denser than hot water. When water is heated, the molecules gain energy and move faster, causing them to spread out and take up more space. This increase in volume leads to a decrease in density. On the other hand, when water is cooled, the molecules slow down and come closer together, resulting in a decrease in volume and an increase in density. Therefore, cold water is denser than hot water.

Explanation

Cold water is denser than hot water. When water is heated, the molecules gain energy and move faster, causing them to spread out and take up more space. This increase in volume leads to a decrease in density. On the other hand, when water is cooled, the molecules slow down and come closer together, resulting in a decrease in volume and an increase in density. Therefore, cold water is denser than hot water.

17. If you increase the volume of something but keep its mass the same, what are you doing to the density?

Increasing it

Decreasing it

Keeping it the same.

Making it bigger spreads out the "stuff" inside making it less dense.

Explanation

Making it bigger spreads out the "stuff" inside making it less dense.

18. There are a few reasons why an area may have a high salinity. Which is the main reason that the Dead sea has this situation?

Evaporation

Precipitation

Freezing

Depth of the water

The dead sea is in the middle of a desert. That means it's a very hot environment which leads to a lot of evaporation which leaves a high level of salt behind.

Explanation

The dead sea is in the middle of a desert. That means it's a very hot environment which leads to a lot of evaporation which leaves a high level of salt behind.

19. When water from the ocean freezes near the poles the ocean salinity will increase.

True

False

Less fresh water = increased salinity

Explanation

Less fresh water = increased salinity

20. The water around the mouth of a river will have a higher level of salinity.

True

False

More fresh water = decreased salinity

Explanation

More fresh water = decreased salinity

21. A good synonym for volume is

Weight

Distance

Thickness

Size

Compactness

Volume is how much space something takes up which is it's size

Explanation

Volume is how much space something takes up which is it's size

22. Salt in water does all of the following except for

It lowers the freezing temperature of the water

It increases its buoyancy

It increases its density

It increases its volume

Remember it doesn't affect the volume of the water at all since it dissolves into the water and fits between the water molecules!

Explanation

Remember it doesn't affect the volume of the water at all since it dissolves into the water and fits between the water molecules!

23. The Justin Bieber doll weighs 10 ounces and it takes up 100 cubic centimeters. It's density is ____________

10 ounces per cubic centimeter

1 ounce per cubic centimeter

1000 ounces per cubic centimeter

.1 ounce per cubic centimeter

Remember to divide Mass(weight) by density!

Explanation

Remember to divide Mass(weight) by density!

24. Which of the following things decrease as you descend into the ocean?

Density

Pressure

Salinity

Gasses(oxygen and carbon dioxide)

Temperature

Light

As you descend into the ocean, the pressure increases due to the weight of the water above. The density also increases because colder water is denser than warmer water. Additionally, the amount of gases, such as oxygen and carbon dioxide, decreases as you go deeper into the ocean. This is because the concentration of dissolved gases decreases with increasing depth. Lastly, the amount of light decreases as you descend into the ocean because water absorbs and scatters light, making it difficult for sunlight to penetrate to deeper depths.

Explanation

As you descend into the ocean, the pressure increases due to the weight of the water above. The density also increases because colder water is denser than warmer water. Additionally, the amount of gases, such as oxygen and carbon dioxide, decreases as you go deeper into the ocean. This is because the concentration of dissolved gases decreases with increasing depth. Lastly, the amount of light decreases as you descend into the ocean because water absorbs and scatters light, making it difficult for sunlight to penetrate to deeper depths.

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25. What part of ocean water is salt?

35%

35 parts per thousand

.35%

3.5 parts per thousand

it is 35/1000 or 35 parts out of every thousand parts. That would be 3.5%(which wasn't an option)

Explanation

it is 35/1000 or 35 parts out of every thousand parts. That would be 3.5%(which wasn't an option)

26. A diver may get "the Bends" if which type of gas forms bubbles in their blood when swimming to the top too quickly.

Oxygen

Carbon Dioxide

Nitrogen

Helium

When a diver swims to the top too quickly, the pressure decreases rapidly, causing nitrogen gas to form bubbles in their blood. This condition is known as "the Bends" or decompression sickness. Nitrogen is the most common gas present in the air and is also the gas that makes up the majority of the gas mixture used for diving. As the diver ascends, the nitrogen absorbed by their body tissues during the dive comes out of solution and forms bubbles, which can cause various symptoms like joint pain, dizziness, and even paralysis if not treated promptly.

Explanation

When a diver swims to the top too quickly, the pressure decreases rapidly, causing nitrogen gas to form bubbles in their blood. This condition is known as "the Bends" or decompression sickness. Nitrogen is the most common gas present in the air and is also the gas that makes up the majority of the gas mixture used for diving. As the diver ascends, the nitrogen absorbed by their body tissues during the dive comes out of solution and forms bubbles, which can cause various symptoms like joint pain, dizziness, and even paralysis if not treated promptly.

27. There is a small amount of light in the transition zone.

True

False

The top of the transition zone is where all light ends. There is only light in the surface zone.

Explanation

The top of the transition zone is where all light ends. There is only light in the surface zone.