SME
Grade 7 Science
Life Science
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?”
From a meal to energy in a cell
Use this for “Put in order what happens to the food you eat.”
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?”
Energy flow and matter cycling in ecosystems
Main lesson
The carbon cycle
Use this for “How does carbon get from the air into an animal, and back?”
Producer, consumer or decomposer?
Use this for “Which organisms in the food web are primary consumers?”
Take one out of the food web
Use this for “What happens to the fox population if the rabbits disappear?”
A pesticide up the food chain
Use this for “Which animal ends up with the most pesticide in its body?”
Will the population grow or shrink?
Use this for “How would planting fruit trees affect the orangutan population?”
Genes, alleles and Punnett squares
Main lesson
How many offspring to expect
Use this for “Two Tt plants produce 40 seeds. About how many seedlings will be tall?”
Reading a pedigree
Use this for “Neither parent shows the trait but a child does. What are the parents’ genotypes?”
Asexual or sexual reproduction?
Use this for “What is the advantage of asexual reproduction?”
Natural selection
Main lesson
Natural selection or artificial selection?
Use this for “How do farmers control the variation in their animals?”
How natural selection works
Use this for “Put the steps of natural selection in order.”
Does it fit natural selection?
Use this for “Which statement is most consistent with the theory of evolution by natural selection?”