Class 3–4 Science & Our World Worksheets
Ages 8–10 · 15 weeks · 105 printable pages
15 weeks of Science & Our World for Class 3–4 (ages 8–10), one topic a week — 105 printable pages in all. It begins with Big question: Why does an egg float in salty water?, Big question: Why do sweet drinks harm our teeth? and Big question: Why do leaves need sunlight? and goes on to Big question: How do our lungs fill with air? and Big question: How do germs spread from hand to hand?.
All 15 weeks
| Week | Theme | Topic | Pages |
|---|---|---|---|
| Week 1 | All About Me | Big question: Why does an egg float in salty water? Guess, try it at home and find out why · New words: float, sink, density, dissolve, upthrust | 7 |
| Week 2 | My Family | Big question: Why do sweet drinks harm our teeth? Guess, try it at home and find out why · New words: enamel, acid, calcium, cavity, fluoride | 7 |
| Week 3 | My Senses | Big question: Why do leaves need sunlight? Guess, try it at home and find out why · New words: chlorophyll, photosynthesis, oxygen, carbon dioxide, sunlight | 7 |
| Week 4 | Fruits | Big question: How do seeds travel far from the parent plant? Guess, try it at home and find out why · New words: dispersal, wind, pod, germinate, winged seed | 7 |
| Week 5 | Vegetables | Big question: Where do the drops on a cold glass come from? Guess, try it at home and find out why · New words: evaporation, condensation, vapour, precipitation, cycle | 7 |
| Week 6 | Colours & Shapes | Big question: Why does a toy car go further on a smooth floor? Guess, try it at home and find out why · New words: friction, force, surface, smooth, rough | 7 |
| Week 7 | Animals at Home | Big question: How does a lever make lifting easy? Guess, try it at home and find out why · New words: lever, pivot, fulcrum, load, effort | 7 |
| Week 8 | Wild Animals | Big question: How does a bulb light up? Guess, try it at home and find out why · New words: circuit, cell, conductor, insulator, switch | 7 |
| Week 9 | Birds | Big question: Why does a mirror flip my writing? Guess, try it at home and find out why · New words: reflection, mirror, periscope, reverse, light ray | 7 |
| Week 10 | Plants & Trees | Big question: Why does a metal spoon get hot in hot tea, but a wooden one does not? Guess, try it at home and find out why · New words: conductor, insulator, heat, temperature, thermometer | 7 |
| Week 11 | Water | Big question: What is soil made of? Guess, try it at home and find out why · New words: humus, clay, sand, erosion, layer | 7 |
| Week 12 | Weather & Seasons | Big question: Where does a rainbow come from? Guess, try it at home and find out why · New words: spectrum, prism, refraction, VIBGYOR, sunlight | 7 |
| Week 13 | Transport | Big question: How does a parachute slow a fall? Guess, try it at home and find out why · New words: air resistance, parachute, canopy, gravity, glide | 7 |
| Week 14 | Community Helpers | Big question: How do our lungs fill with air? Guess, try it at home and find out why · New words: lungs, diaphragm, oxygen, carbon dioxide, breathe | 7 |
| Week 15 | Safety & Good Habits | Big question: How do germs spread from hand to hand? Guess, try it at home and find out why · New words: germs, bacteria, virus, hygiene, vaccine | 7 |
Frequently asked questions
Are these Science & Our World worksheets free?
Weeks 1–2 are free to view and print. The other weeks open with a Kids Pass (₹149 a month), which also unlocks Kids Learning and Kids Studio.
What does week 1 cover?
Week 1 (All About Me): Big question: Why does an egg float in salty water? — Big question: Why does an egg float in salty water?; Guess, try it at home and find out why; New words: float, sink, density, dissolve, upthrust.
Which age group are they for?
They are written for Class 3–4, about 8–10 years. Other ages have their own sets — see the worksheet index.