Freshwater Ecosystems (6/19/2024)

Last updated almost 2 years ago

20 questions

1

Library

Freshwater Ecosystems (6/19/2024)

Last updated almost 2 years ago

20 questions

Breathing Underwater Exploration
In this Exploration you will see pictures with various air temperatures and observe their effects on the water temperature, dissolved oxygen, and fish in a pond. Dissolved Oxygen is the amount of gaseous oxygen(O2) dissolved in the water. Oxygen enters the water by direct absorption from the atmosphere, by rapid movement, or as a waste product of plant photosynthesis.

For each set of pictures below answer the questions about those pictures.  

1

Answer the questions below about all of the pictures.

1

Use the PowerPoint on Freshwater Ecosystems to answer the remaining questions.

1

Breathing Underwater Exploration
In this Exploration you will see pictures with various air temperatures and observe their effects on the water temperature, dissolved oxygen, and fish in a pond. Dissolved Oxygen is the amount of gaseous oxygen(O2) dissolved in the water. Oxygen enters the water by direct absorption from the atmosphere, by rapid movement, or as a waste product of plant photosynthesis.

For each set of pictures below answer the questions about those pictures.  

Where is the warmer water located, at the top or at the bottom?

at the top

at the bottom

Where is most of the dissolved oxygen located, at the top or at the bottom of the water?

at the top

at the bottom

What observation can you make about the movement of the fish?

Most fish swim near the top where the water is colder.

Most fish swim near the bottom where there is more dissolved oxygen.

Most fish swim near the bottom where the water is warmer.

Why do fish swim slower in colder water?

There is too much heat energy.

There is not a lot of heat energy.

Where is the warmer water located, at the top or at the bottom?

at the top

at the bottom

Where is most of the dissolved oxygen located, in the warmer or cooler water at the top or at the bottom?

bottom in the warmer water

bottom in the cooler water

top in the warmer water

top in the cooler water

What observation can you make about the movement of the fish?

The fish swim mostly at the top where the water is warmer.

The fish swim throughout the pond.

The fish swim mostly at the bottom where there is more dissolved oxygen.

Where is the warmer water located, at the top or at the bottom?

at the top

at the bottom

Where is most of the dissolved oxygen located, in the warmer or cooler water at the top or at the bottom?

At the top in the warmer water

At the bottom in the warmer water

At the top in the cooler water

At the bottom in the cooler water

What observation can you make about the movement of the fish?

Fish swim faster in the bottom part of the water where there is more dissolved oxygen.

Fish swim faster in the top part of the water because there is more dissolved oxygen.

Fish swim faster in the top part of the water because there is more heat energy.

Fish swim faster in the bottom part of the water because there is cooler water.

Where is the warmer water located, at the top or at the bottom?

at the top

at the bottom

Where is most of the dissolved oxygen located, in the warmer or cooler water at the top or at the bottom?

bottom in the cooler water

bottom in the warmer water

top in the cooler water

top in the warmer water

What observation can you make about the movement of the fish?

Most fish swim above where there is more dissolved oxygen and the water is warmer.

Most fish swim below where there is more dissolved oxygen and the water is cooler.

Most fish swim above where there is more dissolved oxygen and the water is cooler.

Most fish swim below where there is more dissolved oxygen and the water is warmer.

Answer the questions below about all of the pictures.

At which air temperature did the fish swim freely throughout the pond?

32 degrees

53 degrees

75 degrees

95 degrees

How did the water temperature affect the swimming speed of the fish?

They swim faster in warmer water where there is more heat energy.

They swim slower in warmer water where there is more heat energy.

They swim slower in warmer water where there is less heat energy.

They swim faster in cooler water where there is more heat energy.

For all air temperatures, was the greatest amount of dissolved oxygen found in cooler or warmer water?

in warmer water

in cooler water

Use the PowerPoint on Freshwater Ecosystems to answer the remaining questions.

What is an important abiotic factor for freshwater streams?

fish

amount of salt

water current

turtles

What is the area of water near the edge of a lake or pond called?

littoral zone

open water zone

deep water zone

What is the wetland area with trees called?

bog

swamp

marsh

estuary

What is the wetland area called that does not have trees?

bog

marsh

swamp

pond

Where is the warmer water located, at the top or at the bottom?

at the top

at the bottom

Where is most of the dissolved oxygen located, at the top or at the bottom of the water?

at the top

at the bottom

What observation can you make about the movement of the fish?

Most fish swim near the top where the water is colder.

Most fish swim near the bottom where there is more dissolved oxygen.

Most fish swim near the bottom where the water is warmer.

Why do fish swim slower in colder water?

There is too much heat energy.

There is not a lot of heat energy.

Where is the warmer water located, at the top or at the bottom?

at the top

at the bottom

Where is most of the dissolved oxygen located, in the warmer or cooler water at the top or at the bottom?

bottom in the warmer water

bottom in the cooler water

top in the warmer water

top in the cooler water

What observation can you make about the movement of the fish?

The fish swim mostly at the top where the water is warmer.

The fish swim throughout the pond.

The fish swim mostly at the bottom where there is more dissolved oxygen.

Where is the warmer water located, at the top or at the bottom?

at the top

at the bottom

Where is most of the dissolved oxygen located, in the warmer or cooler water at the top or at the bottom?

At the top in the warmer water

At the bottom in the warmer water

At the top in the cooler water

At the bottom in the cooler water

What observation can you make about the movement of the fish?

Fish swim faster in the bottom part of the water where there is more dissolved oxygen.

Fish swim faster in the top part of the water because there is more dissolved oxygen.

Fish swim faster in the top part of the water because there is more heat energy.

Fish swim faster in the bottom part of the water because there is cooler water.

Where is the warmer water located, at the top or at the bottom?

at the top

at the bottom

Where is most of the dissolved oxygen located, in the warmer or cooler water at the top or at the bottom?

bottom in the cooler water

bottom in the warmer water

top in the cooler water

top in the warmer water

What observation can you make about the movement of the fish?

Most fish swim above where there is more dissolved oxygen and the water is warmer.

Most fish swim below where there is more dissolved oxygen and the water is cooler.

Most fish swim above where there is more dissolved oxygen and the water is cooler.

Most fish swim below where there is more dissolved oxygen and the water is warmer.

At which air temperature did the fish swim freely throughout the pond?  

32 degrees

53 degrees

75 degrees

95 degrees

How did the water temperature affect the swimming speed of the fish?

They swim faster in warmer water where there is more heat energy.

They swim slower in warmer water where there is more heat energy.

They swim slower in warmer water where there is less heat energy.

They swim faster in cooler water where there is more heat energy.

For all air temperatures, was the greatest amount of dissolved oxygen found in cooler or warmer water?

in warmer water

in cooler water

What is an important abiotic factor for freshwater streams?

fish

amount of salt

water current

turtles

What is the area of water near the edge of a lake or pond called?

littoral zone

open water zone

deep water zone

What is the wetland area with trees called?

bog

swamp

marsh

estuary

What is the wetland area called that does not have trees?

bog

marsh

swamp

pond