MrBadmusAI

Year 7 · Summer First Half

Biology

3 lessons from 1 unit.

Unit B3 · lessons 3 to 5 of 8

Nutrition and digestion

Everything you have ever eaten was taken apart and rebuilt into you. This unit is about what your body needs, what happens to food after you swallow it, and why a gut full of bacteria is a good thing.

  1. 03Energy in food and what you needQuantitativeA label says 1050 kJ. Your body needs about 9500 kJ a day. Neither number means anything until you know whose day it is.Open this lesson
  2. 04When diet goes wrongContrastThree different things can be wrong with a diet, and they are not three degrees of the same thing. Two of them can happen at once, in the same person, on a full plate.Open this lesson
  3. 05The digestive systemSystemA nine-metre tube with seven jobs along it. Food spends four hours in the organ everybody names, and sixteen in the one that actually does the work.Open this lesson

Back to all three sciences this half term The whole KS3 Biology course