1. Essential Question: How do major organ systems work together in living organisms?
GSES7L2b: Develop and use a conceptual model of how cells are organized into tissues, tissues into organs, organs into systems, and systems into organisms.
GSES7L2c: Construct an argument that systems of the body interasct with one another to carry out life processes.
Instructional Approach(s): Teacher reviews the essential question and the standards that align to the essential question

2. The Urinary System
Transition slide to next system

3. Synonyms: Eject, Remove, Expel, Pass What does excreted mean?
The Urinary System
Role: Our urinary system produces, stores and eliminates urine, the fluid waste excreted by the kidneys
Instructional Approach(s): The teacher should present the information on the slide while the students record the role of the Urinary System on their graphic organizer sheet. Ask students what “excreted” means. When ready click the mouse to reveal synonyms for the word
Synonyms: Eject, Remove, Expel, Pass
What does excreted mean?

4. Parts of the Urinary System
Kidney
Ureters
Bladder
Instructional Approach(s): The teacher should present the information on the slide while the students label the parts of the Urinary System on their graphic organizer sheet
Urethra

5. Kidneys
Act as filters for your body to clean waste from the blood and remove urea [a waste product formed by the breakdown of proteins]
Instructional Approach(s): The teacher should present the information on the slide while the students record important information about the Kidneys on their graphic organizer sheet. You may want to get a coffee filter and demonstrate what filter means

6. A set of tubes connecting the kidneys to the bladder
Ureters
A set of tubes connecting the kidneys to the bladder
Instructional Approach(s): The teacher should present the information on the slide while the students record important information about the Ureters on their graphic organizer sheet.

7. Bladder
A hollow muscular organ shaped like a balloon, that stores urine until you are ready to empty it. The bladder can hold up to 16 ounces (almost half a liter) of urine comfortably for 2 to 5 hours.
Instructional Approach(s): The teacher should present the information on the slide while the students record important information about the Bladder on their graphic organizer sheet.

8. A tube that connects the bladder to the outside of the body
Urethra
A tube that connects the bladder to the outside of the body
Instructional Approach(s): The teacher should present the information on the slide while the students record important information about the Urethra on their graphic organizer sheet.

9. Urinary System Video Clip
[only first 3-4 mins]

10. The role of the Excretory System is to remove wastes from the body.
Instructional Approach(s): The teacher should present the information on the slide while the students record the role of the Excretory System on their graphic organizer sheet.

11. Organs that Excrete Waste
What it Excretes
Lungs
Carbon Dioxide
Kidney/Bladder
Urine
Large Intestine
Feces (food waste)
Skin
Excess water/Salt
Instructional Approach(s): The teacher should present the information in the slide while the students record the information on their own chart on the graphic organizer sheet

12. Skin Our Body sweats to maintain temperature
You may have noticed you sweat more in places like your feet, your hands or your forehead
This is because you have more sweat glands in those areas
Instructional Approach(s): The teacher should present the information on the slide

13. Write it Down
On a scratch sheet of paper write a brief statement explaining how this trash truck is similar to the organs in your excretory system and how it is different.
Instructional Approach(s): The teacher may want to use the “write it down” as a formative assessment to determine student mastery of the Excretory System