The Magic School Bus Works Out
Field Trip Notes
At this year's Teacherathalon, Ms. Frizzle squares off with Mr. Sinew, a muscle-bound gym teacher. Sinew easily wins the first of the three events. Thinking there's a problem, the kids go inside Ms. Frizzle to check her out. The Bus takes them through her lungs to the bloodstream, where they get pumped through her heart to her calf muscle. But when Ms. Frizzle's leg muscle collapses from the strain of winning the second event, the kids discover that her red blood cells can't get oxygen to her muscles fast enough! Can the kids help The Friz recover in time to win the final race?
You Gotta Have Heart
Time: 20 minutes
Group Size: 2
Ms. Frizzle wins the school Teacherathalon, thanks to teamwork - heart, lungs, blood, and muscles all working together! Your kids make a personal heart profile of an important member of their own hardworking team.
What You Need
Talk About It
Ask kids to find their hearts. If they can’t, run in place for 30 seconds; try again. Ask: Why does your heart beat? (Pumps blood through body.) Why do you need a blood pump? (To carry oxygen, food to muscles and cells; carry away carbon dioxide.) Where else can you feel the blood pathway through your body? (At the pressure points.)
What To Do
Ask: Why do you breathe harder when you exercise? (Lungs are taking in more oxygen for working muscles.) Why does your heart beat faster? (It’s pumping more oxygen to muscles.)
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