Digestive System – Grade 7 Science Worksheets
The Digestive System is one of the vital systems of all living beings. The food we eat gets converted to the much needed energy only due to our digestive system. All the organs of this system work in perfect synchronization to make sure that maximum nutrition is extracted from this food and passed on to our Circulatory System.
This Grade 7 Worksheet aims at strengthening a student’s Science concepts about the ‘Human Digestive System’. Other than fill in the blanks and definitions, it also includes diagrammatical questions that makes it fun and interesting. This worksheet can be used by tutors as a ‘Diagnostic Assessment’ to plan and design a Grade 8 student’s future learning sessions on this topic.
It can also be used as an ‘End of Topic Test’ to assess a student’s assimilated knowledge about the topic.
Q1. Identify organs involved in digestion –
A. I deliver food to stomach by means of series of muscular contractions called ‘Peristalsis’.____________
B. I act as a hollow container that holds food and secrete HCL.______________________________
C. I am the largest gland in the body and helps in bile secretion._________________________________
D. I am responsible to produce a watery secretion that helps to moisten food and begins the digestion of carbohydrates.______________________________________
E. I am a long muscular tube and helps in absorption of food. I have millions of VILLI that increase the food absorption area._____________________________________
Q2. Define these terms –
A. Digestion :__________________________________________________
B. Absorption :_________________________________________________
C. Bile Juice:__________________________________________________
D. Mechanical Digestion :__________________________________________
E. Peristalsis :__________________________________________________
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