Photosynthesis and respiration worksheets for Grade 6 Science explore how living systems transfer energy and cycle matter through connected cellular processes. Aligned with the NGSS framework named for this resource, the lesson focuses on photosynthesis, cellular respiration, stomata, reactants, products, and the movement of energy from sunlight into usable forms.

Students examine how plants capture light energy in chloroplasts and use carbon dioxide and water to produce glucose and oxygen. They trace how glucose stores chemical energy and how respiration in mitochondria uses oxygen to break down glucose, producing carbon dioxide, water, and usable energy for cell activities. The resource also emphasizes that matter is conserved because atoms are rearranged rather than destroyed.

Core Biology Concepts

• Explain how photosynthesis transfers light energy into chemical energy stored in glucose.
• Identify the reactants and products involved in photosynthesis and respiration.
• Describe how stomata allow gases to move into and out of leaves.
• Explain how mitochondria support respiration and the release of usable energy.
• Connect energy transfer with matter cycling in living systems.
• Use evidence from the reading to trace relationships between cellular processes.

Student Practice

The worksheet includes a reading passage, multiple-choice questions, true-or-false statements, short-answer questions, a labeled diagram, a categorization activity, and a short note. Students move from identifying key terms and process components to explaining how photosynthesis and respiration are connected. Questions address light energy, stomata, chloroplasts, mitochondria, glucose, oxygen, carbon dioxide, water, reactants, products, and conservation of matter.

Classroom Use

This Grade 6 life science worksheet can support direct instruction, independent practice, lesson review, or formative assessment within a unit on structures and processes from molecules to organisms. The reading provides a common context for students to reason about energy pathways, while the written-response tasks give them opportunities to explain biological processes using scientific vocabulary.

Teacher Support Included

• ✔️ Student Notes lines at the bottom of the worksheet
• ✔️ Answer Key PDF with an included Teacher Guide
• ✔️ Learning Objectives for planning and lesson focus
• ✔️ Teaching Tips for classroom implementation
• ✔️ Discussion Questions for extending student thinking
• ✔️ Common Mistakes to help identify misconceptions

By connecting photosynthesis, respiration, energy transfer, gas exchange, and matter conservation, this science practice resource gives students a structured way to explain how organisms transform energy and reuse matter through related biological processes.