Photosynthesis: Plants Make Their Food
Grade 7 Science Understanding How Plants Create Energy The Foundation of Life on Earth
What is Photosynthesis?
The process plants use to make their own food Converts light energy into chemical energy Happens in the leaves of plants Essential for plant survival and growth
Key Components of Photosynthesis
{"left":"Sunlight - provides the energy\nChlorophyll - green pigment that captures light","right":"Carbon dioxide - gas from the air\nWater - absorbed through roots"}
The Photosynthesis Equation
Group Activity: Photosynthesis Components
Form groups of 4-5 students Each group gets assigned one component Research and discuss your component's role Create a 2-minute mini-presentation Present to the class
Photosynthesis in Our Ecosystem
Produces oxygen that we breathe Forms the base of all food chains Removes carbon dioxide from the atmosphere Supports all life on Earth Local example: Newfoundland and Labrador forests
Quick Check: Test Your Knowledge!
What are the four main components needed for photosynthesis? What does the plant produce during photosynthesis? Why is photosynthesis important for animals like us? Where in the plant does photosynthesis mainly occur?
Summary: Why Photosynthesis Matters
Plants make their own food using sunlight, water, and carbon dioxide This process produces glucose for energy and oxygen as a bonus All life on Earth depends on photosynthesis Next class: We'll explore the chloroplast in detail Homework: Observe plants around you and think about photosynthesis happening