Is this Science worksheet really free?

Yes — every workbook on WorkbookWala is 100% free to download and print. No login, no email, no paywall. We're free for students, parents and teachers.

Is it aligned to the CBSE / NCERT syllabus?

Yes. All Class 2 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.

Library/Class 2/Science

Class 2 Science: Water Pollution and Its Effects

This worksheet helps Class 2 students understand what water pollution is, its causes, and some simple effects on living things. Students will practice identifying clean and dirty water.

Class 2CBSESciencemediumPractice

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What's inside this workbook

This Class 2 Science Practice contains 30 questions across 5 printable pages and includes a full answer key at medium difficulty in ENGLISH. Aligned to the CBSE and NCERT syllabus.

How this worksheet helps your child

Builds confidence in core Science concepts taught in Class 2 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

water pollutionclean waterdirty watereffectsenvironmentclass 2sciencecbse

More Class 2 Science worksheets →All Science worksheets →All Class 2 worksheets →

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 2) 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.

Preview · 30 questions

Q1. What makes water dirty and harmful?
- Playing with toys in it
- Adding soap and oil to it
- Putting clean stones in it
- Rainwater
Q2. Which of these is a source of clean drinking water?
- River near a factory
- Pond in a village
- Filtered tap water
- Drainage water
Q3. What can happen if we drink dirty water?
- We become smarter
- We get strong
- We might fall sick
- We grow taller
Q4. Which of these is NOT a cause of water pollution?
- Throwing waste into rivers
- Washing clothes in lakes
- Factory waste
- Rain falling into a clean pond
Q5. What lives inside clean water?
- Fish
- Plastic bottles
- Oil
- Garbage

+ 25 more in the printable PDF.

Frequently asked questions

Is this Science worksheet really free?: Yes — every workbook on WorkbookWala is 100% free to download and print. No login, no email, no paywall. We're free for students, parents and teachers.
Is it aligned to the CBSE / NCERT syllabus?: Yes. All Class 2 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.