Respiration in Organisms - Class 7 CBSE Science
Workbook for Class 7 CBSE Science chapter 'Respiration in Organisms'. These questions will help students understand the process of breathing and cellular respiration.
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Track practice: print a star chart
- Q1.Which of the following gases do organisms take in during breathing?
- A.Carbon dioxide
- B.Oxygen
- C.Nitrogen
- D.Hydrogen
- Q2.The process of breakdown of food in the cell with the release of energy is called ___________.
- Q3.Briefly explain the main difference between aerobic and anaerobic respiration.
- Q4.The tiny pores on the surface of leaves through which exchange of gases takes place are called:
- A.Lenticels
- B.Stomata
- C.Guard cells
- D.Trachea
Preview — full sheet in the PDF
What's inside this workbook
This Class 7 Science Practice contains 10 questions across 2 printable pages and includes a full answer key at medium difficulty. Aligned to the CBSE and NCERT syllabus.
How this worksheet helps your child
- Builds confidence in core Science concepts taught in Class 7 through repeated, varied practice.
- Aligned to CBSE and NCERT — questions mirror the pattern children see in school tests and unit assessments.
- Comes with an answer key so parents and students can self-check in minutes, without needing a teacher.
- Pitched at medium level — use it for daily homework, weekend revision or quick exam warm-ups.
Topics covered
How to use this worksheet at home
Open the print view and use your browser's Print dialog to print on regular A4 paper or save as a PDF. Hand the printed sheet to your child (Class 7) and set a relaxed time limit — 15 to 25 minutes works for most Science worksheets. When they're done, open the "With answer key" view and let them self-mark question by question. Re-print as many times as you need; the file never expires and there's no download limit.
Frequently asked questions
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- Is it aligned to the CBSE / NCERT syllabus?
- Yes. All Class 7 worksheets are built around the CBSE and NCERT pattern so they map cleanly to what your child is studying in school.
- Can I print this worksheet at home?
- Yes. Click "Open print view" and use your browser's Print dialog to print on standard A4 paper, or save it as a PDF for later. The layout is designed to fit cleanly without scaling.
- Does it include an answer key?
- Yes — click "With answer key" to print a version with answers included, so parents and students can self-mark in minutes.
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