Circulatory System Gizmo 2

READ ALL DIRECTIONS CAREFULLY!!! 

IMPORTANT:

This formative will instantly show when your answers are correct. You MUST spell the words correctly in order for it to be counted right. The words are on your screen so there is no reason for them to be misspelled. If it is a short answer question and it is not being counted correct and you don't understand why, let me know.

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Password: lake975

1

Why do you need blood?

Answer in a complete sentence

1

What organ pushes blood through the body

1

How many chambers does the heart have?
(This answer should be a number, no words)

1

Turn on Show labels. What are the names of the chambers?
spell them correctly

1

Do you see tiny “doors” that open and close as blood is pumped through the heart? ______
These are heart valves. Heart valves control the flow of blood through the heart.

Click Heartbeat sound and listen for the two parts of the heartbeat, nicknamed “lub” and “dub.” Observe the heart. In fact, the “lub” sound is caused by valves from the atria to the ventricles closing, and the “dub” sound is caused by the valves from the ventricles to the blood vessels closing. (Note: The recording is not in sync with the heart animation.)

2

What causes heart beat sounds?

Answer in a complete sentence

2

Why do you think the left atrium and left ventricle are shown on the right side of the diagram?

Must answer in complete sentences

Activity A: Blood Flow

Get the Gizmo ready:
 Turn off: Show labels.
 Turn on: Show blood flow.

1. Observe: Blood in each chamber of the heart is represented by little balls. Click Play and observe the balls as they move through the heart and lungs.

2. Label: Click Pause and turn on Show labels. 

2

Label the four chambers of the heart on the diagram. Then draw arrows to show the direction that blood flows through the heart.

1

Which order does the blood flow through the heart?

Left Ventricle
Left Atrium
Right Ventricle
Right Atrium

Analyze: Click Play. Observe the path of blood that leaves each ventricle.

1

Where does blood from the right ventricle go? (which organ)

1

Where does the aorta take the blood from the left ventricle? (don't list the organs, just use a general term)

Collect data: Use the syringe to collect a blood sample from the right ventricle (on the left side of the heart diagram). Look at the Data from blood sample numbers.

1

What is the concentration of oxygen in this sample?

1

What is the concentration of carbon dioxide in this sample?

Collect data: Now collect a blood sample from the left atrium.

1

What is the concentration of oxygen in this sample?

1

What is the concentration of carbon dioxide in this sample?

2

Draw conclusions: Between the right ventricle and the left atrium, blood goes through the lungs. Based on the data you have collected, what happens in the lungs?

Answer in complete sentences

Activity B: Blood Circulation
How is blood carried to the different parts of the body?

Get the Gizmo ready:
 Check that Show labels is on.
 Turn on Show blood flow.

1

Observe: Click Play and watch the blood after it leaves the left ventricle. What are some places that blood goes after leaving the heart? (be specific this time. Don't just say body)

Compare: The Gizmo shows three types of blood vessels. Arteries carry blood away from the heart, they usually carry oxygenated blood. Capillaries are small vessels that carry blood to body cells, this is where oxygen and carbon dioxide are exchanged. Veins carry blood back to the heart, they usually carry deoxygenated blood. Locate examples of arteries, veins, and capillaries.
Use the syringe to take blood samples from several different veins and arteries.

1

Which type of blood vessel usually carries oxygen rich blood?

1

Which type of blood vessel usually carries oxygen-poor blood?

1

What are the microscopic blood vessels where oxygen, nutrients, carbon dioxide, and wastes are exchanged?

The pulmonary arteries carry blood from the right ventricle to the right and left lungs. The pulmonary veins carry blood from the lungs back to the left atrium. Locate these blood vessels, and use the syringe to take a blood sample from each.

1

How is the blood in the pulmonary arteries different from blood in other arteries?

Hint: Arteries usually carry oxygenated blood away from the heart.

1

How is the blood in the pulmonary veins different from blood in other veins?

Hint: Veins usually carry deoxygenated blood to the heart.

1

How is the circulatory system similar to a road and highway system?

The final page of the gizmo is extra credit.

1

Match the blood cell with the correct description.

Draggable item		Corresponding Item
Platelets		Carries oxygen
Red Blood Cell		Fights disease and infections
White Blood Cell		Cell fragments that helps your blood clot .

What's in your blood?

Take a blood sample from any blood vessel using the syringe.

Click the camera icon to take a Gizmo snapshot, and then paste your snapshot into the show your work box.

Red blood cells (small, round cells that carry oxygen)  White blood cells (large, irregular cells that fight disease)  Platelets (tiny fragments that help to stop bleeding when you are cut)

3

Click the camera icon to take a Gizmo snapshot, and then paste your snapshot into the show your work box.

Find and label a red blood cell, platelet, and white blood cell in your blood sample.

3

Collect data: Blood carries many vital substances. Four of these are listed above the Microscopic view. Oxygen and sugar are needed by all body cells. Carbon dioxide and urea are waste products. What are the concentrations of each substance in this sample?

Write it in the table in the show your work box.

Investigate: Take samples of blood from all over the body. Try to determine where sugar enters the blood, and where it is removed.

*Think about sugar concentrations in the blood*

1

Where does sugar enter the blood?

1

How can you tell where sugar enters the blood?

1

Where is sugar removed from the blood?

1

How can you tell?

Investigate: Take blood samples to determine where urea enters the blood and is removed. (Urea is the main component of Urine)

1

Where does urea enter the blood? (which organ)

1

Why do you need blood?*Answer in a complete sentence*

What organ pushes blood through the body

How many chambers does the heart have?(This answer should be a number, no words)

Turn on Show labels. What are the names of the chambers?*spell them correctly*

Do you see tiny “doors” that open and close as blood is pumped through the heart? ______These are heart valves. Heart valves control the flow of blood through the heart.

What causes heart beat sounds?*Answer in a complete sentence*

Why do you think the left atrium and left ventricle are shown on the right side of the diagram?*Must answer in complete sentences*

Label the four chambers of the heart on the diagram. Then draw arrows to show the direction that blood flows through the heart.

Which order does the blood flow through the heart?

Where does blood from the right ventricle go? (which organ)

Where does the aorta take the blood from the left ventricle? (don't list the organs, just use a general term)

What is the concentration of oxygen in this sample?

What is the concentration of carbon dioxide in this sample?

What is the concentration of oxygen in this sample?

What is the concentration of carbon dioxide in this sample?

Draw conclusions: Between the right ventricle and the left atrium, blood goes through the lungs. Based on the data you have collected, what happens in the lungs?*Answer in complete sentences*

Observe: Click Play and watch the blood after it leaves the left ventricle. What are some places that blood goes after leaving the heart? (be specific this time. Don't just say body)

Which type of blood vessel usually carries oxygen rich blood?

Which type of blood vessel usually carries oxygen-poor blood?

What are the microscopic blood vessels where oxygen, nutrients, carbon dioxide, and wastes are exchanged?

How is the blood in the pulmonary arteries different from blood in other arteries?Hint: Arteries usually carry oxygenated blood away from the heart.

How is the blood in the pulmonary veins different from blood in other veins?Hint: Veins usually carry deoxygenated blood to the heart.

How is the circulatory system similar to a road and highway system?

Match the blood cell with the correct description.

Click the camera icon to take a Gizmo snapshot, and then paste your snapshot into the show your work box.Find and label a red blood cell, platelet, and white blood cell in your blood sample.

Where does sugar enter the blood?

How can you tell where sugar enters the blood?

Where is sugar removed from the blood?

How can you tell?

Where does urea enter the blood? (which organ)

Where is urea removed from the blood? (which organ)

Why do you need blood?

Answer in a complete sentence

How many chambers does the heart have?
(This answer should be a number, no words)

Turn on Show labels. What are the names of the chambers?
spell them correctly

Do you see tiny “doors” that open and close as blood is pumped through the heart? ______
These are heart valves. Heart valves control the flow of blood through the heart.

What causes heart beat sounds?

Answer in a complete sentence

Why do you think the left atrium and left ventricle are shown on the right side of the diagram?

Must answer in complete sentences

Draw conclusions: Between the right ventricle and the left atrium, blood goes through the lungs. Based on the data you have collected, what happens in the lungs?

Answer in complete sentences

How is the blood in the pulmonary arteries different from blood in other arteries?

Hint: Arteries usually carry oxygenated blood away from the heart.

How is the blood in the pulmonary veins different from blood in other veins?

Hint: Veins usually carry deoxygenated blood to the heart.

Click the camera icon to take a Gizmo snapshot, and then paste your snapshot into the show your work box.

Find and label a red blood cell, platelet, and white blood cell in your blood sample.