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One Heart, Two Pumping Routes

Students combine an article about the human heart with a blood-flow chart and sample pulse data to explain how circulation works.

Grade 6ELAInteractive · Printable

Aligned toRI.6.7

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
13 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 6
Subject: ELA
Question types: Multiple choice, Matching, Circle the answer, Short answer

About this worksheet

What students practice

Students combine information from an article and a route chart to explain how the heart moves blood.
Students connect sample pulse data with an article's explanation of changing oxygen needs.
Students identify which format supplies the evidence needed to answer a question.

How to use

Have students read all three sources before answering. Ask them to locate evidence in both the article and the charts when explaining a connection.

Curriculum

Common Core standard covered

RI.6.7

Combine information from words with information in other media or formats, such as charts or video, to understand a topic.

Preview

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Name Date

One Heart, Two Pumping Routes

Combine an article, a route chart, and a data table to understand blood flow.

Read and connect the sources

Read Source A and study Source B. Use both sources to answer questions 1–6.

Source A: A Pump That Works in Two Parts

1Press two fingers gently against the thumb side of your wrist, and you may feel a steady pulse. Each pulse is a wave of pressure created when the heart pushes blood into arteries. The heart is a muscular organ, not a storage tank. Its repeated squeezing and relaxing keep blood moving through a connected network of vessels.

2Inside the heart are four chambers. The two upper chambers, called atria, receive blood. The two lower chambers, called ventricles, pump blood out. The right side of the heart sends blood to the lungs, where blood picks up oxygen and releases carbon dioxide. Blood then returns to the left side, which sends it to the rest of the body.

3The route is a continuous circuit rather than a trip with a final stop. After delivering oxygen to body cells, blood returns to the right side of the heart. It does not travel directly from the body to the left ventricle. Both sides are needed: one moves blood toward a fresh supply of oxygen, and the other delivers that oxygen around the body.

4Blood must also move in the correct direction. Valves act like gates between chambers and at the exits from the ventricles. They open to let blood move forward and close to limit backward flow. A route chart can show where blood travels, but it cannot show the timing of every valve opening or every muscular squeeze.

5The heart's pace can change as the body's needs change. During physical activity, working muscles generally need more oxygen, and the heart usually beats faster to help deliver it. Pulse rate reports the number of beats in one minute. A pulse table can show changes over time, but it does not show the amount of blood moved by each beat. Rates differ among people, so one person's readings are not a rule for everyone.

Source B: Blood-Flow Route — Read Down, Then Return to the First Row
Stop	Blood arrives from	Blood goes next to
Right atrium	Body	Right ventricle
Right ventricle	Right atrium	Lungs
Lungs	Right ventricle	Left atrium
Left atrium	Lungs	Left ventricle
Left ventricle	Left atrium	Body
Body	Left ventricle	Right atrium