SME
Grade 7 Science · Problem type
From a meal to energy in a cell
Use this for “Put in order what happens to the food you eat.”
Put in order
Put the steps in order, from eating to energy.
1
?
2
?
3
?
4
?
5
?
6
?
Assumptions
•
Digestion is chemical: large food molecules are broken into small ones the blood can carry.
•
A body that cannot absorb food loses mass, because its cells keep respiring stored fat.
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Oxygen bubbles from a water plant
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Related lessons
Photosynthesis and cellular respiration
Main lesson
Who photosynthesizes, and who respires?
Use this for “Why can a plant live in a sealed jar when a mouse cannot?”
Oxygen bubbles from a water plant
Use this to record how many bubbles a water plant gives off each minute at each lamp distance.
What goes in and what comes out
Use this for “Which substance is required for cellular respiration?”