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Unit 3 Lesson 2


Physical Activity and Your Body


1. Physical Activity

Learners can:

  • Identify changes that occur in the human body during exercise.
  • Identify the functions of the different body systems during physical activity.
  • Explain the benefits of physical activity.


I'm ready!

It is time for an experiment!During this 5-minute period, take note of how your body reacts to physical activity. When you have finished moving, be ready to discuss your observations.

Physical Activity Experiment!

Let's Move!


Tell me 2 things you noticed about your body during or after the exericse experiment.

Let's Discuss!

Click Here for the Unit 3 Home Page: Guided Notes, Study Guide, & Extra Resources

Don't forget your Guided Notes Page!


The muscular system and skeletal system work together to create movement!Muscles contract to move the bones. They always pull, NEVER push!


  • As you exercise, your muscles go to work. Your muscle cells need oxygen and nutrients to make fuel work.
Your muscles are just like a car—if the engine does not get gasoline for energy, it will not work. Your circulatory system helps your muscles get the fuel they need by delivering blood to them.

The Circulatory System

  • Many people think you need to be in a sport or go to the gym to be Physically Active.
  • This is NOT true!
  • When thinking about physical activity or energy out, it is important to consider all activities that get you moving!

Very Active

Not Active

Somewhat Active

Energy Output= Movement/Physical Activity

  • preventing unwanted weight gain or loss
  • maintaining proper weight
  • preventing health-related illnesses
  • fueling your body efficiently to do the things you want to do

Importance of Energy Balance

Try mixing up the type of activities so you are working different muscles and getting into different heart rate zones.

Try your best to get 60 minutes of Physical Activity every day!

Definition: Continuous, repeated, large muscle movement done at 60% or more of the max heart rate.Examples:-Running-Jump RopeCompetitive Swim-Playing Basketball, Soccer, etc.

Vigorous Physcial Activity

Definition: Continuous, repeated, large muscle movements done at less than 60% of the max heart rate. Examples:-Walking-Slow Bike Ride-Dance-Playing Catch


Moderate Physical Activity

I'm ready!

Next, we will do an activity...

Let's Prcatice

Playing Catch

Playing Basketball

Jump Rope

Slow Bike Ride



Vigorous Physcial Activity

Moderate Physical Activity

Drag and drop the Exercise to the correct movement category

Extra Resource: Click to Avocado icon for the link to the Nutriton Quiz Review Game. Have fun!

Great job today! We have a Nutrition Unit Quiz 1 week from today!!