LESSON 15: DIET AND WEIGHT FACTORS OF SCIENTIFIC LITERACY AND FOUNDATIONAL OBJECTIVES, LEARNING OBJECTIVES, SCIENCE 10 BIBLIOGRAPHY
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WHAT IS THE CONNECTION BETWEEN YOUR DIET AND YOUR WEIGHT?

THE FOOD THAT WE EAT GIVES US THE ENERGY WE NEED TO CARRY ON OUR DAILY TASKS AND TO MAINTAIN EFFICIENT BODILY FUNCTIONS.

WE TEND TO GAIN WEIGHT IF THE ENERGY CONTENT OF OUR FOOD IS MORE THAN THE ENERGY WE EXPEND DURING OUR DAILY ACTIVITIES.

WE TEND TO LOSE WEIGHT IF THE ENERGY CONTENT OF OUR FOOD IS LESS THAN THE ENERGY WE EXPEND DURING OUR DAILY ACTIVITIES.

ACTIVITY

PART 1:

FIND THREE REFERENCES THAT GIVE IDEAL WEIGHTS FOR VARIOUS AGE GROUPS.THESE REFERENCES COULD BE INTERNET SITES OR PRINTED RESOURCES. KEEP A LIST OF YOUR REFERENCES.

HOW DO THE IDEAL WEIGHTS PRESENTED IN YOUR THREE REFERENCES COMPARE? ARE THEY VIRTUALLY THE SAME OR QUITE DIFFERENT?

TALK WITH A CLASSMATE. DO THE IDEAL WEIGHTS THAT THEY FOUND MATCH WITH THE IDEAL WEIGHTS THAT YOU FOUND?

PART 2:

FIND THREE REFERENCES THAT GIVE ENERGY REQUIREMENTS FOR SOME EXERCISE ACTIVITIES. YOU WILL PREFER THESE VALUES TO BE GIVEN IN CALORIES PER HOUR OR CALORIES PER MINUTE (AS OPPOSED TO USING JOULES OR KILOJOULES). KEEP A LIST OF YOUR REFERENCES.

COMPARE THE VALUES GIVEN IN THE REFERENCES THAT YOU FIND. ARE THE VALUES SIMILAR?

PART 3:

DO ACTIVITY "15.11 PLAN YOUR OWN DIET" FROM PAGE 338 OF THE CHEMICALS IN ACTION TEXTBOOK.

ASSIGNMENT

1. CALCULATE YOUR IDEAL WEIGHT. SHOW YOUR WORK. (WEB PAGE, WORD DOCUMENT, RTF FORMAT)
2. TO LOSE ONE POUND OF WEIGHT, YOU HAVE TO BURN A TOTAL OF 3500 CALORIES. USING THE TABLE FOUND AT THIS SITE, CALCULATE THE TIME THAT A 130 POUND PERSON WOULD HAVE TO DO EACH ACTIVITY BELOW IN ORDER TO LOSE ONE POUND. SHOW YOUR WORK. EMAIL YOUR ANSWERS ALONG WITH YOUR WORK TO YOUR TEACHER AS AN ATTACHMENT.
  • WALK AT A STEADY PACE
  • BIKE
  • SWIM
  • RUN
  • WEIGHT LIFTING
3.

COMPARE YOUR VALUES WITH VALUES AT ONE OF THESE INTERACTIVE SITES.

ASSESSMENT

DID YOU CALCULATE YOUR IDEAL BODY WEIGHT CORRECTLY AND DID YOU SHOW YOUR WORK? (10 MARKS)

DID YOU CALCULATE AND SHOW YOUR WORK CORRECTLY FOR THE AMOUNT OF TIME TO DO EACH ACTIVITY? (10 MARKS)

YOUR TEACHER MAY ALSO ASK YOU TO HAND IN YOUR ACTIVITY "15.11 PLAN YOUR OWN DIET" FROM PAGE 338 FROM THE CHEMICALS IN ACTION TEXTBOOK.